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Observation of two new $\Xi_b^-$ baryon resonances
Two structures are observed close to the kinematic threshold in the $\Xi_b^0\pi^-$ mass spectrum in a sample of proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb$^{-1}$ recorded by the LHCb experiment. In the quark model, two baryonic resonances with quark content $bd...
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Lenguaje: | eng |
Publicado: |
2014
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1103/PhysRevLett.114.062004 http://cds.cern.ch/record/1970690 |
_version_ | 1780944831810371584 |
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author | Aaij, Roel Adeva, Bernardo Adinolfi, Marco Affolder, Anthony Ajaltouni, Ziad Akar, Simon Albrecht, Johannes Alessio, Federico Alexander, Michael Ali, Suvayu Alkhazov, Georgy Alvarez Cartelle, Paula Alves Jr, Antonio Augusto Amato, Sandra Amerio, Silvia Amhis, Yasmine An, Liupan Anderlini, Lucio Anderson, Jonathan Andreassen, Rolf Andreotti, Mirco Andrews, Jason Appleby, Robert Aquines Gutierrez, Osvaldo Archilli, Flavio Artamonov, Alexander Artuso, Marina Aslanides, Elie Auriemma, Giulio Baalouch, Marouen Bachmann, Sebastian Back, John Badalov, Alexey Baesso, Clarissa Baldini, Wander Barlow, Roger Barschel, Colin Barsuk, Sergey Barter, William Batozskaya, Varvara Battista, Vincenzo Bay, Aurelio Beaucourt, Leo Beddow, John Bedeschi, Franco Bediaga, Ignacio Belogurov, Sergey Belous, Konstantin Belyaev, Ivan Ben-Haim, Eli Bencivenni, Giovanni Benson, Sean Benton, Jack Berezhnoy, Alexander Bernet, Roland Bertolin, Alessandro Bettler, Marc-Olivier van Beuzekom, Martinus Bien, Alexander Bifani, Simone Bird, Thomas Bizzeti, Andrea Bjørnstad, Pål Marius Blake, Thomas Blanc, Frédéric Blouw, Johan Blusk, Steven Bocci, Valerio Bondar, Alexander Bondar, Nikolay Bonivento, Walter Borghi, Silvia Borgia, Alessandra Borsato, Martino Bowcock, Themistocles Bowen, Espen Eie Bozzi, Concezio Brett, David Britsch, Markward Britton, Thomas Brodzicka, Jolanta Brook, Nicholas Bursche, Albert Buytaert, Jan Cadeddu, Sandro Calabrese, Roberto Calvi, Marta Calvo Gomez, Miriam Campana, Pierluigi Campora Perez, Daniel Capriotti, Lorenzo Carbone, Angelo Carboni, Giovanni Cardinale, Roberta Cardini, Alessandro Carson, Laurence Carvalho Akiba, Kazuyoshi Casanova Mohr, Raimon Casse, Gianluigi Cassina, Lorenzo Castillo Garcia, Lucia Cattaneo, Marco Cauet, Christophe Cenci, Riccardo Charles, Matthew Charpentier, Philippe Chefdeville, Maximilien Chen, Shanzhen Cheung, Shu-Faye Chiapolini, Nicola Chrzaszcz, Marcin Cid Vidal, Xabier Ciezarek, Gregory Clarke, Peter Clemencic, Marco Cliff, Harry Closier, Joel Coco, Victor Cogan, Julien Cogneras, Eric Cogoni, Violetta Cojocariu, Lucian Collazuol, Gianmaria Collins, Paula Comerma-Montells, Albert Contu, Andrea Cook, Andrew Coombes, Matthew Coquereau, Samuel Corti, Gloria Corvo, Marco Counts, Ian Couturier, Benjamin Cowan, Greig Craik, Daniel Charles Crocombe, Andrew Christopher Cruz Torres, Melissa Maria Cunliffe, Samuel Currie, Robert D'Ambrosio, Carmelo Dalseno, Jeremy David, Pascal David, Pieter Davis, Adam De Bruyn, Kristof De Capua, Stefano De Cian, Michel De Miranda, Jussara De Paula, Leandro De Silva, Weeraddana De Simone, Patrizia Dean, Cameron Thomas Decamp, Daniel Deckenhoff, Mirko Del Buono, Luigi Déléage, Nicolas Derkach, Denis Deschamps, Olivier Dettori, Francesco Dey, Biplab Di Canto, Angelo Di Domenico, Antonio Dijkstra, Hans Donleavy, Stephanie Dordei, Francesca Dorigo, Mirco Dosil Suárez, Alvaro Dossett, David Dovbnya, Anatoliy Dreimanis, Karlis Dujany, Giulio Dupertuis, Frederic Durante, Paolo Dzhelyadin, Rustem Dziurda, Agnieszka Dzyuba, Alexey Easo, Sajan Egede, Ulrik Egorychev, Victor Eidelman, Semen Eisenhardt, Stephan Eitschberger, Ulrich Ekelhof, Robert Eklund, Lars El Rifai, Ibrahim Elsasser, Christian Ely, Scott Esen, Sevda Evans, Hannah Mary Evans, Timothy Falabella, Antonio Färber, Christian Farinelli, Chiara Farley, Nathanael Farry, Stephen Fay, Robert Ferguson, Dianne Fernandez Albor, Victor Ferreira Rodrigues, Fernando Ferro-Luzzi, Massimiliano Filippov, Sergey Fiore, Marco Fiorini, Massimiliano Firlej, Miroslaw Fitzpatrick, Conor Fiutowski, Tomasz Fol, Philip Fontana, Marianna Fontanelli, Flavio Forty, Roger Francisco, Oscar Frank, Markus Frei, Christoph Frosini, Maddalena Fu, Jinlin Furfaro, Emiliano Gallas Torreira, Abraham Galli, Domenico Gallorini, Stefano Gambetta, Silvia Gandelman, Miriam Gandini, Paolo Gao, Yuanning García Pardiñas, Julián Garofoli, Justin Garra Tico, Jordi Garrido, Lluis Gascon, David Gaspar, Clara Gastaldi, Ugo Gauld, Rhorry Gavardi, Laura Gazzoni, Giulio Geraci, Angelo Gersabeck, Evelina Gersabeck, Marco Gershon, Timothy Ghez, Philippe Gianelle, Alessio Gianì, Sebastiana Gibson, Valerie Giubega, Lavinia-Helena Gligorov, V.V. Göbel, Carla Golubkov, Dmitry Golutvin, Andrey Gomes, Alvaro Gotti, Claudio Grabalosa Gándara, Marc Graciani Diaz, Ricardo Granado Cardoso, Luis Alberto Graugés, Eugeni Graverini, Elena Graziani, Giacomo Grecu, Alexandru Greening, Edward Gregson, Sam Griffith, Peter Grillo, Lucia Grünberg, Oliver Gui, Bin Gushchin, Evgeny Guz, Yury Gys, Thierry Hadjivasiliou, Christos Haefeli, Guido Haen, Christophe Haines, Susan Hall, Samuel Hamilton, Brian Hampson, Thomas Han, Xiaoxue Hansmann-Menzemer, Stephanie Harnew, Neville Harnew, Samuel Harrison, Jonathan He, Jibo Head, Timothy Heijne, Veerle Hennessy, Karol Henrard, Pierre Henry, Louis Hernando Morata, Jose Angel van Herwijnen, Eric Heß, Miriam Hicheur, Adlène Hill, Donal Hoballah, Mostafa Hombach, Christoph Hulsbergen, Wouter Hussain, Nazim Hutchcroft, David Hynds, Daniel Idzik, Marek Ilten, Philip Jacobsson, Richard Jaeger, Andreas Jalocha, Pawel Jans, Eddy Jaton, Pierre Jawahery, Abolhassan Jing, Fanfan John, Malcolm Johnson, Daniel Jones, Christopher Joram, Christian Jost, Beat Jurik, Nathan Kandybei, Sergii Kanso, Walaa Karacson, Matthias Karbach, Moritz Karodia, Sarah Kelsey, Matthew Kenyon, Ian Ketel, Tjeerd Khanji, Basem Khurewathanakul, Chitsanu Klaver, Suzanne Klimaszewski, Konrad Kochebina, Olga Kolpin, Michael Komarov, Ilya Koopman, Rose Koppenburg, Patrick Korolev, Mikhail Kravchuk, Leonid Kreplin, Katharina Kreps, Michal Krocker, Georg Krokovny, Pavel Kruse, Florian Kucewicz, Wojciech Kucharczyk, Marcin Kudryavtsev, Vasily Kurek, Krzysztof Kvaratskheliya, Tengiz La Thi, Viet Nga Lacarrere, Daniel Lafferty, George Lai, Adriano Lambert, Dean Lambert, Robert W Lanfranchi, Gaia Langenbruch, Christoph Langhans, Benedikt Latham, Thomas Lazzeroni, Cristina Le Gac, Renaud van Leerdam, Jeroen Lees, Jean-Pierre Lefèvre, Regis Leflat, Alexander Lefrançois, Jacques Leroy, Olivier Lesiak, Tadeusz Leverington, Blake Li, Yiming Likhomanenko, Tatiana Liles, Myfanwy Lindner, Rolf Linn, Christian Lionetto, Federica Liu, Bo Lohn, Stefan Longstaff, Iain Lopes, Jose Lowdon, Peter Lucchesi, Donatella Luo, Haofei Lupato, Anna Luppi, Eleonora Lupton, Oliver Machefert, Frederic Machikhiliyan, Irina V Maciuc, Florin Maev, Oleg Malde, Sneha Malinin, Alexander Manca, Giulia Mancinelli, Giampiero Mapelli, Alessandro Maratas, Jan Marchand, Jean François Marconi, Umberto Marin Benito, Carla Marino, Pietro Märki, Raphael Marks, Jörg Martellotti, Giuseppe Martinelli, Maurizio Martinez Santos, Diego Martinez Vidal, Fernando Martins Tostes, Danielle Massafferri, André Matev, Rosen Mathe, Zoltan Matteuzzi, Clara Mazurov, Alexander McCann, Michael McCarthy, James McNab, Andrew McNulty, Ronan McSkelly, Ben Meadows, Brian Meier, Frank Meissner, Marco Merk, Marcel Milanes, Diego Alejandro Minard, Marie-Noelle Moggi, Niccolò Molina Rodriguez, Josue Monteil, Stephane Morandin, Mauro Morawski, Piotr Mordà, Alessandro Morello, Michael Joseph Moron, Jakub Morris, Adam Benjamin Mountain, Raymond Muheim, Franz Müller, Katharina Mussini, Manuel Muster, Bastien Naik, Paras Nakada, Tatsuya Nandakumar, Raja Nasteva, Irina Needham, Matthew Neri, Nicola Neubert, Sebastian Neufeld, Niko Neuner, Max Nguyen, Anh Duc Nguyen, Thi-Dung Nguyen-Mau, Chung Nicol, Michelle Niess, Valentin Niet, Ramon Nikitin, Nikolay Nikodem, Thomas Novoselov, Alexey O'Hanlon, Daniel Patrick Oblakowska-Mucha, Agnieszka Obraztsov, Vladimir Ogilvy, Stephen Okhrimenko, Oleksandr Oldeman, Rudolf Onderwater, Gerco Orlandea, Marius Otalora Goicochea, Juan Martin Otto, Adam Owen, Patrick Oyanguren, Maria Arantza Pal, Bilas Kanti Palano, Antimo Palombo, Fernando Palutan, Matteo Panman, Jacob Papanestis, Antonios Pappagallo, Marco Pappalardo, Luciano Parkes, Christopher Parkinson, Christopher John Passaleva, Giovanni Patel, Girish Patel, Mitesh Patrignani, Claudia Pearce, Alex Pellegrino, Antonio Penso, Gianni Pepe Altarelli, Monica Perazzini, Stefano Perret, Pascal Pescatore, Luca Pesen, Erhan Petridis, Konstantin Petrolini, Alessandro Picatoste Olloqui, Eduardo Pietrzyk, Boleslaw Pilař, Tomas Pinci, Davide Pistone, Alessandro Playfer, Stephen Plo Casasus, Maximo Polci, Francesco Poluektov, Anton Polyakov, Ivan Polycarpo, Erica Popov, Alexander Popov, Dmitry Popovici, Bogdan Potterat, Cédric Price, Eugenia Price, Joseph David Prisciandaro, Jessica Pritchard, Adrian Prouve, Claire Pugatch, Valery Puig Navarro, Albert Punzi, Giovanni Qian, Wenbin Rachwal, Bartolomiej Rademacker, Jonas Rakotomiaramanana, Barinjaka Rama, Matteo Rangel, Murilo Raniuk, Iurii Rauschmayr, Nathalie Raven, Gerhard Redi, Federico Reichert, Stefanie Reid, Matthew dos Reis, Alberto Ricciardi, Stefania Richards, Sophie Rihl, Mariana Rinnert, Kurt Rives Molina, Vincente Robbe, Patrick Rodrigues, Ana Barbara Rodrigues, Eduardo Rodriguez Perez, Pablo Roiser, Stefan Romanovsky, Vladimir Romero Vidal, Antonio Rotondo, Marcello Rouvinet, Julien Ruf, Thomas Ruiz, Hugo Ruiz Valls, Pablo Saborido Silva, Juan Jose Sagidova, Naylya Sail, Paul Saitta, Biagio Salustino Guimaraes, Valdir Sanchez Mayordomo, Carlos Sanmartin Sedes, Brais Santacesaria, Roberta Santamarina Rios, Cibran Santovetti, Emanuele Sarti, Alessio Satriano, Celestina Satta, Alessia Saunders, Daniel Martin Savrina, Darya Schiller, Manuel Schindler, Heinrich Schlupp, Maximilian Schmelling, Michael Schmidt, Burkhard Schneider, Olivier Schopper, Andreas Schune, Marie Helene Schwemmer, Rainer Sciascia, Barbara Sciubba, Adalberto Semennikov, Alexander Sepp, Indrek Serra, Nicola Serrano, Justine Sestini, Lorenzo Seyfert, Paul Shapkin, Mikhail Shapoval, Illya Shcheglov, Yury Shears, Tara Shekhtman, Lev Shevchenko, Vladimir Shires, Alexander Silva Coutinho, Rafael Simi, Gabriele Sirendi, Marek Skidmore, Nicola Skillicorn, Ian Skwarnicki, Tomasz Smith, Anthony Smith, Edmund Smith, Eluned Smith, Jackson Smith, Mark Snoek, Hella Sokoloff, Michael Soler, Paul Soomro, Fatima Souza, Daniel Souza De Paula, Bruno Spaan, Bernhard Spradlin, Patrick Sridharan, Srikanth Stagni, Federico Stahl, Marian Stahl, Sascha Steinkamp, Olaf Stenyakin, Oleg Sterpka, Christopher Francis Stevenson, Scott Stoica, Sabin Stone, Sheldon Storaci, Barbara Stracka, Simone Straticiuc, Mihai Straumann, Ulrich Stroili, Roberto Sun, Liang Sutcliffe, William Swientek, Krzysztof Swientek, Stefan Syropoulos, Vasileios Szczekowski, Marek Szczypka, Paul Szumlak, Tomasz T'Jampens, Stephane Teklishyn, Maksym Tellarini, Giulia Teubert, Frederic Thomas, Christopher Thomas, Eric van Tilburg, Jeroen Tisserand, Vincent Tobin, Mark Todd, Jacob Tolk, Siim Tomassetti, Luca Tonelli, Diego Topp-Joergensen, Stig Torr, Nicholas Tournefier, Edwige Tourneur, Stephane Tran, Minh Tâm Tresch, Marco Trisovic, Ana Tsaregorodtsev, Andrei Tsopelas, Panagiotis Tuning, Niels Ubeda Garcia, Mario Ukleja, Artur Ustyuzhanin, Andrey Uwer, Ulrich Vacca, Claudia Vagnoni, Vincenzo Valenti, Giovanni Vallier, Alexis Vazquez Gomez, Ricardo Vazquez Regueiro, Pablo Vázquez Sierra, Carlos Vecchi, Stefania Velthuis, Jaap Veltri, Michele Veneziano, Giovanni Vesterinen, Mika Viana Barbosa, Joao Vitor Viaud, Benoit Vieira, Daniel Vieites Diaz, Maria Vilasis-Cardona, Xavier Vollhardt, Achim Volyanskyy, Dmytro Voong, David Vorobyev, Alexey Vorobyev, Vitaly Voß, Christian de Vries, Jacco Waldi, Roland Wallace, Charlotte Wallace, Ronan Walsh, John Wandernoth, Sebastian Wang, Jianchun Ward, David Watson, Nigel Websdale, David Whitehead, Mark Wiedner, Dirk Wilkinson, Guy Wilkinson, Michael Williams, Matthew Williams, Mike Wilschut, Hans Wilson, Fergus Wimberley, Jack Wishahi, Julian Wislicki, Wojciech Witek, Mariusz Wormser, Guy Wotton, Stephen Wright, Simon Wyllie, Kenneth Xie, Yuehong Xing, Zhou Xu, Zhirui Yang, Zhenwei Yuan, Xuhao Yushchenko, Oleg Zangoli, Maria Zavertyaev, Mikhail Zhang, Liming Zhang, Wen Chao Zhang, Yanxi Zhelezov, Alexey Zhokhov, Anatoly Zhong, Liang |
author_facet | Aaij, Roel Adeva, Bernardo Adinolfi, Marco Affolder, Anthony Ajaltouni, Ziad Akar, Simon Albrecht, Johannes Alessio, Federico Alexander, Michael Ali, Suvayu Alkhazov, Georgy Alvarez Cartelle, Paula Alves Jr, Antonio Augusto Amato, Sandra Amerio, Silvia Amhis, Yasmine An, Liupan Anderlini, Lucio Anderson, Jonathan Andreassen, Rolf Andreotti, Mirco Andrews, Jason Appleby, Robert Aquines Gutierrez, Osvaldo Archilli, Flavio Artamonov, Alexander Artuso, Marina Aslanides, Elie Auriemma, Giulio Baalouch, Marouen Bachmann, Sebastian Back, John Badalov, Alexey Baesso, Clarissa Baldini, Wander Barlow, Roger Barschel, Colin Barsuk, Sergey Barter, William Batozskaya, Varvara Battista, Vincenzo Bay, Aurelio Beaucourt, Leo Beddow, John Bedeschi, Franco Bediaga, Ignacio Belogurov, Sergey Belous, Konstantin Belyaev, Ivan Ben-Haim, Eli Bencivenni, Giovanni Benson, Sean Benton, Jack Berezhnoy, Alexander Bernet, Roland Bertolin, Alessandro Bettler, Marc-Olivier van Beuzekom, Martinus Bien, Alexander Bifani, Simone Bird, Thomas Bizzeti, Andrea Bjørnstad, Pål Marius Blake, Thomas Blanc, Frédéric Blouw, Johan Blusk, Steven Bocci, Valerio Bondar, Alexander Bondar, Nikolay Bonivento, Walter Borghi, Silvia Borgia, Alessandra Borsato, Martino Bowcock, Themistocles Bowen, Espen Eie Bozzi, Concezio Brett, David Britsch, Markward Britton, Thomas Brodzicka, Jolanta Brook, Nicholas Bursche, Albert Buytaert, Jan Cadeddu, Sandro Calabrese, Roberto Calvi, Marta Calvo Gomez, Miriam Campana, Pierluigi Campora Perez, Daniel Capriotti, Lorenzo Carbone, Angelo Carboni, Giovanni Cardinale, Roberta Cardini, Alessandro Carson, Laurence Carvalho Akiba, Kazuyoshi Casanova Mohr, Raimon Casse, Gianluigi Cassina, Lorenzo Castillo Garcia, Lucia Cattaneo, Marco Cauet, Christophe Cenci, Riccardo Charles, Matthew Charpentier, Philippe Chefdeville, Maximilien Chen, Shanzhen Cheung, Shu-Faye Chiapolini, Nicola Chrzaszcz, Marcin Cid Vidal, Xabier Ciezarek, Gregory Clarke, Peter Clemencic, Marco Cliff, Harry Closier, Joel Coco, Victor Cogan, Julien Cogneras, Eric Cogoni, Violetta Cojocariu, Lucian Collazuol, Gianmaria Collins, Paula Comerma-Montells, Albert Contu, Andrea Cook, Andrew Coombes, Matthew Coquereau, Samuel Corti, Gloria Corvo, Marco Counts, Ian Couturier, Benjamin Cowan, Greig Craik, Daniel Charles Crocombe, Andrew Christopher Cruz Torres, Melissa Maria Cunliffe, Samuel Currie, Robert D'Ambrosio, Carmelo Dalseno, Jeremy David, Pascal David, Pieter Davis, Adam De Bruyn, Kristof De Capua, Stefano De Cian, Michel De Miranda, Jussara De Paula, Leandro De Silva, Weeraddana De Simone, Patrizia Dean, Cameron Thomas Decamp, Daniel Deckenhoff, Mirko Del Buono, Luigi Déléage, Nicolas Derkach, Denis Deschamps, Olivier Dettori, Francesco Dey, Biplab Di Canto, Angelo Di Domenico, Antonio Dijkstra, Hans Donleavy, Stephanie Dordei, Francesca Dorigo, Mirco Dosil Suárez, Alvaro Dossett, David Dovbnya, Anatoliy Dreimanis, Karlis Dujany, Giulio Dupertuis, Frederic Durante, Paolo Dzhelyadin, Rustem Dziurda, Agnieszka Dzyuba, Alexey Easo, Sajan Egede, Ulrik Egorychev, Victor Eidelman, Semen Eisenhardt, Stephan Eitschberger, Ulrich Ekelhof, Robert Eklund, Lars El Rifai, Ibrahim Elsasser, Christian Ely, Scott Esen, Sevda Evans, Hannah Mary Evans, Timothy Falabella, Antonio Färber, Christian Farinelli, Chiara Farley, Nathanael Farry, Stephen Fay, Robert Ferguson, Dianne Fernandez Albor, Victor Ferreira Rodrigues, Fernando Ferro-Luzzi, Massimiliano Filippov, Sergey Fiore, Marco Fiorini, Massimiliano Firlej, Miroslaw Fitzpatrick, Conor Fiutowski, Tomasz Fol, Philip Fontana, Marianna Fontanelli, Flavio Forty, Roger Francisco, Oscar Frank, Markus Frei, Christoph Frosini, Maddalena Fu, Jinlin Furfaro, Emiliano Gallas Torreira, Abraham Galli, Domenico Gallorini, Stefano Gambetta, Silvia Gandelman, Miriam Gandini, Paolo Gao, Yuanning García Pardiñas, Julián Garofoli, Justin Garra Tico, Jordi Garrido, Lluis Gascon, David Gaspar, Clara Gastaldi, Ugo Gauld, Rhorry Gavardi, Laura Gazzoni, Giulio Geraci, Angelo Gersabeck, Evelina Gersabeck, Marco Gershon, Timothy Ghez, Philippe Gianelle, Alessio Gianì, Sebastiana Gibson, Valerie Giubega, Lavinia-Helena Gligorov, V.V. Göbel, Carla Golubkov, Dmitry Golutvin, Andrey Gomes, Alvaro Gotti, Claudio Grabalosa Gándara, Marc Graciani Diaz, Ricardo Granado Cardoso, Luis Alberto Graugés, Eugeni Graverini, Elena Graziani, Giacomo Grecu, Alexandru Greening, Edward Gregson, Sam Griffith, Peter Grillo, Lucia Grünberg, Oliver Gui, Bin Gushchin, Evgeny Guz, Yury Gys, Thierry Hadjivasiliou, Christos Haefeli, Guido Haen, Christophe Haines, Susan Hall, Samuel Hamilton, Brian Hampson, Thomas Han, Xiaoxue Hansmann-Menzemer, Stephanie Harnew, Neville Harnew, Samuel Harrison, Jonathan He, Jibo Head, Timothy Heijne, Veerle Hennessy, Karol Henrard, Pierre Henry, Louis Hernando Morata, Jose Angel van Herwijnen, Eric Heß, Miriam Hicheur, Adlène Hill, Donal Hoballah, Mostafa Hombach, Christoph Hulsbergen, Wouter Hussain, Nazim Hutchcroft, David Hynds, Daniel Idzik, Marek Ilten, Philip Jacobsson, Richard Jaeger, Andreas Jalocha, Pawel Jans, Eddy Jaton, Pierre Jawahery, Abolhassan Jing, Fanfan John, Malcolm Johnson, Daniel Jones, Christopher Joram, Christian Jost, Beat Jurik, Nathan Kandybei, Sergii Kanso, Walaa Karacson, Matthias Karbach, Moritz Karodia, Sarah Kelsey, Matthew Kenyon, Ian Ketel, Tjeerd Khanji, Basem Khurewathanakul, Chitsanu Klaver, Suzanne Klimaszewski, Konrad Kochebina, Olga Kolpin, Michael Komarov, Ilya Koopman, Rose Koppenburg, Patrick Korolev, Mikhail Kravchuk, Leonid Kreplin, Katharina Kreps, Michal Krocker, Georg Krokovny, Pavel Kruse, Florian Kucewicz, Wojciech Kucharczyk, Marcin Kudryavtsev, Vasily Kurek, Krzysztof Kvaratskheliya, Tengiz La Thi, Viet Nga Lacarrere, Daniel Lafferty, George Lai, Adriano Lambert, Dean Lambert, Robert W Lanfranchi, Gaia Langenbruch, Christoph Langhans, Benedikt Latham, Thomas Lazzeroni, Cristina Le Gac, Renaud van Leerdam, Jeroen Lees, Jean-Pierre Lefèvre, Regis Leflat, Alexander Lefrançois, Jacques Leroy, Olivier Lesiak, Tadeusz Leverington, Blake Li, Yiming Likhomanenko, Tatiana Liles, Myfanwy Lindner, Rolf Linn, Christian Lionetto, Federica Liu, Bo Lohn, Stefan Longstaff, Iain Lopes, Jose Lowdon, Peter Lucchesi, Donatella Luo, Haofei Lupato, Anna Luppi, Eleonora Lupton, Oliver Machefert, Frederic Machikhiliyan, Irina V Maciuc, Florin Maev, Oleg Malde, Sneha Malinin, Alexander Manca, Giulia Mancinelli, Giampiero Mapelli, Alessandro Maratas, Jan Marchand, Jean François Marconi, Umberto Marin Benito, Carla Marino, Pietro Märki, Raphael Marks, Jörg Martellotti, Giuseppe Martinelli, Maurizio Martinez Santos, Diego Martinez Vidal, Fernando Martins Tostes, Danielle Massafferri, André Matev, Rosen Mathe, Zoltan Matteuzzi, Clara Mazurov, Alexander McCann, Michael McCarthy, James McNab, Andrew McNulty, Ronan McSkelly, Ben Meadows, Brian Meier, Frank Meissner, Marco Merk, Marcel Milanes, Diego Alejandro Minard, Marie-Noelle Moggi, Niccolò Molina Rodriguez, Josue Monteil, Stephane Morandin, Mauro Morawski, Piotr Mordà, Alessandro Morello, Michael Joseph Moron, Jakub Morris, Adam Benjamin Mountain, Raymond Muheim, Franz Müller, Katharina Mussini, Manuel Muster, Bastien Naik, Paras Nakada, Tatsuya Nandakumar, Raja Nasteva, Irina Needham, Matthew Neri, Nicola Neubert, Sebastian Neufeld, Niko Neuner, Max Nguyen, Anh Duc Nguyen, Thi-Dung Nguyen-Mau, Chung Nicol, Michelle Niess, Valentin Niet, Ramon Nikitin, Nikolay Nikodem, Thomas Novoselov, Alexey O'Hanlon, Daniel Patrick Oblakowska-Mucha, Agnieszka Obraztsov, Vladimir Ogilvy, Stephen Okhrimenko, Oleksandr Oldeman, Rudolf Onderwater, Gerco Orlandea, Marius Otalora Goicochea, Juan Martin Otto, Adam Owen, Patrick Oyanguren, Maria Arantza Pal, Bilas Kanti Palano, Antimo Palombo, Fernando Palutan, Matteo Panman, Jacob Papanestis, Antonios Pappagallo, Marco Pappalardo, Luciano Parkes, Christopher Parkinson, Christopher John Passaleva, Giovanni Patel, Girish Patel, Mitesh Patrignani, Claudia Pearce, Alex Pellegrino, Antonio Penso, Gianni Pepe Altarelli, Monica Perazzini, Stefano Perret, Pascal Pescatore, Luca Pesen, Erhan Petridis, Konstantin Petrolini, Alessandro Picatoste Olloqui, Eduardo Pietrzyk, Boleslaw Pilař, Tomas Pinci, Davide Pistone, Alessandro Playfer, Stephen Plo Casasus, Maximo Polci, Francesco Poluektov, Anton Polyakov, Ivan Polycarpo, Erica Popov, Alexander Popov, Dmitry Popovici, Bogdan Potterat, Cédric Price, Eugenia Price, Joseph David Prisciandaro, Jessica Pritchard, Adrian Prouve, Claire Pugatch, Valery Puig Navarro, Albert Punzi, Giovanni Qian, Wenbin Rachwal, Bartolomiej Rademacker, Jonas Rakotomiaramanana, Barinjaka Rama, Matteo Rangel, Murilo Raniuk, Iurii Rauschmayr, Nathalie Raven, Gerhard Redi, Federico Reichert, Stefanie Reid, Matthew dos Reis, Alberto Ricciardi, Stefania Richards, Sophie Rihl, Mariana Rinnert, Kurt Rives Molina, Vincente Robbe, Patrick Rodrigues, Ana Barbara Rodrigues, Eduardo Rodriguez Perez, Pablo Roiser, Stefan Romanovsky, Vladimir Romero Vidal, Antonio Rotondo, Marcello Rouvinet, Julien Ruf, Thomas Ruiz, Hugo Ruiz Valls, Pablo Saborido Silva, Juan Jose Sagidova, Naylya Sail, Paul Saitta, Biagio Salustino Guimaraes, Valdir Sanchez Mayordomo, Carlos Sanmartin Sedes, Brais Santacesaria, Roberta Santamarina Rios, Cibran Santovetti, Emanuele Sarti, Alessio Satriano, Celestina Satta, Alessia Saunders, Daniel Martin Savrina, Darya Schiller, Manuel Schindler, Heinrich Schlupp, Maximilian Schmelling, Michael Schmidt, Burkhard Schneider, Olivier Schopper, Andreas Schune, Marie Helene Schwemmer, Rainer Sciascia, Barbara Sciubba, Adalberto Semennikov, Alexander Sepp, Indrek Serra, Nicola Serrano, Justine Sestini, Lorenzo Seyfert, Paul Shapkin, Mikhail Shapoval, Illya Shcheglov, Yury Shears, Tara Shekhtman, Lev Shevchenko, Vladimir Shires, Alexander Silva Coutinho, Rafael Simi, Gabriele Sirendi, Marek Skidmore, Nicola Skillicorn, Ian Skwarnicki, Tomasz Smith, Anthony Smith, Edmund Smith, Eluned Smith, Jackson Smith, Mark Snoek, Hella Sokoloff, Michael Soler, Paul Soomro, Fatima Souza, Daniel Souza De Paula, Bruno Spaan, Bernhard Spradlin, Patrick Sridharan, Srikanth Stagni, Federico Stahl, Marian Stahl, Sascha Steinkamp, Olaf Stenyakin, Oleg Sterpka, Christopher Francis Stevenson, Scott Stoica, Sabin Stone, Sheldon Storaci, Barbara Stracka, Simone Straticiuc, Mihai Straumann, Ulrich Stroili, Roberto Sun, Liang Sutcliffe, William Swientek, Krzysztof Swientek, Stefan Syropoulos, Vasileios Szczekowski, Marek Szczypka, Paul Szumlak, Tomasz T'Jampens, Stephane Teklishyn, Maksym Tellarini, Giulia Teubert, Frederic Thomas, Christopher Thomas, Eric van Tilburg, Jeroen Tisserand, Vincent Tobin, Mark Todd, Jacob Tolk, Siim Tomassetti, Luca Tonelli, Diego Topp-Joergensen, Stig Torr, Nicholas Tournefier, Edwige Tourneur, Stephane Tran, Minh Tâm Tresch, Marco Trisovic, Ana Tsaregorodtsev, Andrei Tsopelas, Panagiotis Tuning, Niels Ubeda Garcia, Mario Ukleja, Artur Ustyuzhanin, Andrey Uwer, Ulrich Vacca, Claudia Vagnoni, Vincenzo Valenti, Giovanni Vallier, Alexis Vazquez Gomez, Ricardo Vazquez Regueiro, Pablo Vázquez Sierra, Carlos Vecchi, Stefania Velthuis, Jaap Veltri, Michele Veneziano, Giovanni Vesterinen, Mika Viana Barbosa, Joao Vitor Viaud, Benoit Vieira, Daniel Vieites Diaz, Maria Vilasis-Cardona, Xavier Vollhardt, Achim Volyanskyy, Dmytro Voong, David Vorobyev, Alexey Vorobyev, Vitaly Voß, Christian de Vries, Jacco Waldi, Roland Wallace, Charlotte Wallace, Ronan Walsh, John Wandernoth, Sebastian Wang, Jianchun Ward, David Watson, Nigel Websdale, David Whitehead, Mark Wiedner, Dirk Wilkinson, Guy Wilkinson, Michael Williams, Matthew Williams, Mike Wilschut, Hans Wilson, Fergus Wimberley, Jack Wishahi, Julian Wislicki, Wojciech Witek, Mariusz Wormser, Guy Wotton, Stephen Wright, Simon Wyllie, Kenneth Xie, Yuehong Xing, Zhou Xu, Zhirui Yang, Zhenwei Yuan, Xuhao Yushchenko, Oleg Zangoli, Maria Zavertyaev, Mikhail Zhang, Liming Zhang, Wen Chao Zhang, Yanxi Zhelezov, Alexey Zhokhov, Anatoly Zhong, Liang |
author_sort | Aaij, Roel |
collection | CERN |
description | Two structures are observed close to the kinematic threshold in the $\Xi_b^0\pi^-$ mass spectrum in a sample of proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb$^{-1}$ recorded by the LHCb experiment. In the quark model, two baryonic resonances with quark content $bds$ are expected in this mass region: the spin-parity $J^P = \frac{1}{2}^+$ and $J^P=\frac{3}{2}^+$ states, denoted $\Xi_b^{\prime -}$ and $\Xi_b^{*-}$. Interpreting the structures as these resonances, we measure the mass differences and the width of the heavier state to be \begin{eqnarray*} m(\Xi_b^{\prime -}) - m(\Xi_b^0) - m(\pi^{-}) &=& 3.653 \pm 0.018 \pm 0.006~{\rm MeV}/c^2, \\ m(\Xi_b^{*-}) - m(\Xi_b^0) - m(\pi^{-}) &=& 23.96 \pm 0.12\pm 0.06~{\rm MeV}/c^2, \\ \Gamma(\Xi_b^{*-}) &=& 1.65 \pm 0.31 \pm 0.10~{\rm MeV}, \end{eqnarray*} where the first and second uncertainties are statistical and systematic, respectively. The width of the lighter state is consistent with zero, and we place an upper limit of $\Gamma(\Xi_b^{\prime -}) < 0.08$ MeV at 95 % confidence level. Relative production rates of these states are also reported. |
id | cern-1970690 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2014 |
record_format | invenio |
spelling | cern-19706902023-02-14T04:14:41Zdoi:10.1103/PhysRevLett.114.062004http://cds.cern.ch/record/1970690engAaij, RoelAdeva, BernardoAdinolfi, MarcoAffolder, AnthonyAjaltouni, ZiadAkar, SimonAlbrecht, JohannesAlessio, FedericoAlexander, MichaelAli, SuvayuAlkhazov, GeorgyAlvarez Cartelle, PaulaAlves Jr, Antonio AugustoAmato, SandraAmerio, SilviaAmhis, YasmineAn, LiupanAnderlini, LucioAnderson, JonathanAndreassen, RolfAndreotti, MircoAndrews, JasonAppleby, RobertAquines Gutierrez, OsvaldoArchilli, FlavioArtamonov, AlexanderArtuso, MarinaAslanides, ElieAuriemma, GiulioBaalouch, MarouenBachmann, SebastianBack, JohnBadalov, AlexeyBaesso, ClarissaBaldini, WanderBarlow, RogerBarschel, ColinBarsuk, SergeyBarter, WilliamBatozskaya, VarvaraBattista, VincenzoBay, AurelioBeaucourt, LeoBeddow, JohnBedeschi, FrancoBediaga, IgnacioBelogurov, SergeyBelous, KonstantinBelyaev, IvanBen-Haim, EliBencivenni, GiovanniBenson, SeanBenton, JackBerezhnoy, AlexanderBernet, RolandBertolin, AlessandroBettler, Marc-Oliviervan Beuzekom, MartinusBien, AlexanderBifani, SimoneBird, ThomasBizzeti, AndreaBjørnstad, Pål MariusBlake, ThomasBlanc, FrédéricBlouw, JohanBlusk, StevenBocci, ValerioBondar, AlexanderBondar, NikolayBonivento, WalterBorghi, SilviaBorgia, AlessandraBorsato, MartinoBowcock, ThemistoclesBowen, Espen EieBozzi, ConcezioBrett, DavidBritsch, MarkwardBritton, ThomasBrodzicka, JolantaBrook, NicholasBursche, AlbertBuytaert, JanCadeddu, SandroCalabrese, RobertoCalvi, MartaCalvo Gomez, MiriamCampana, PierluigiCampora Perez, DanielCapriotti, LorenzoCarbone, AngeloCarboni, GiovanniCardinale, RobertaCardini, AlessandroCarson, LaurenceCarvalho Akiba, KazuyoshiCasanova Mohr, RaimonCasse, GianluigiCassina, LorenzoCastillo Garcia, LuciaCattaneo, MarcoCauet, ChristopheCenci, RiccardoCharles, MatthewCharpentier, PhilippeChefdeville, MaximilienChen, ShanzhenCheung, Shu-FayeChiapolini, NicolaChrzaszcz, MarcinCid Vidal, XabierCiezarek, GregoryClarke, PeterClemencic, MarcoCliff, HarryClosier, JoelCoco, VictorCogan, JulienCogneras, EricCogoni, ViolettaCojocariu, LucianCollazuol, GianmariaCollins, PaulaComerma-Montells, AlbertContu, AndreaCook, AndrewCoombes, MatthewCoquereau, SamuelCorti, GloriaCorvo, MarcoCounts, IanCouturier, BenjaminCowan, GreigCraik, Daniel CharlesCrocombe, Andrew ChristopherCruz Torres, Melissa MariaCunliffe, SamuelCurrie, RobertD'Ambrosio, CarmeloDalseno, JeremyDavid, PascalDavid, PieterDavis, AdamDe Bruyn, KristofDe Capua, StefanoDe Cian, MichelDe Miranda, JussaraDe Paula, LeandroDe Silva, WeeraddanaDe Simone, PatriziaDean, Cameron ThomasDecamp, DanielDeckenhoff, MirkoDel Buono, LuigiDéléage, NicolasDerkach, DenisDeschamps, OlivierDettori, FrancescoDey, BiplabDi Canto, AngeloDi Domenico, AntonioDijkstra, HansDonleavy, StephanieDordei, FrancescaDorigo, MircoDosil Suárez, AlvaroDossett, DavidDovbnya, AnatoliyDreimanis, KarlisDujany, GiulioDupertuis, FredericDurante, PaoloDzhelyadin, RustemDziurda, AgnieszkaDzyuba, AlexeyEaso, SajanEgede, UlrikEgorychev, 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AlexanderPopov, DmitryPopovici, BogdanPotterat, CédricPrice, EugeniaPrice, Joseph DavidPrisciandaro, JessicaPritchard, AdrianProuve, ClairePugatch, ValeryPuig Navarro, AlbertPunzi, GiovanniQian, WenbinRachwal, BartolomiejRademacker, JonasRakotomiaramanana, BarinjakaRama, MatteoRangel, MuriloRaniuk, IuriiRauschmayr, NathalieRaven, GerhardRedi, FedericoReichert, StefanieReid, Matthewdos Reis, AlbertoRicciardi, StefaniaRichards, SophieRihl, MarianaRinnert, KurtRives Molina, VincenteRobbe, PatrickRodrigues, Ana BarbaraRodrigues, EduardoRodriguez Perez, PabloRoiser, StefanRomanovsky, VladimirRomero Vidal, AntonioRotondo, MarcelloRouvinet, JulienRuf, ThomasRuiz, HugoRuiz Valls, PabloSaborido Silva, Juan JoseSagidova, NaylyaSail, PaulSaitta, BiagioSalustino Guimaraes, ValdirSanchez Mayordomo, CarlosSanmartin Sedes, BraisSantacesaria, RobertaSantamarina Rios, CibranSantovetti, EmanueleSarti, AlessioSatriano, CelestinaSatta, AlessiaSaunders, Daniel MartinSavrina, DaryaSchiller, ManuelSchindler, HeinrichSchlupp, MaximilianSchmelling, MichaelSchmidt, BurkhardSchneider, OlivierSchopper, AndreasSchune, Marie HeleneSchwemmer, RainerSciascia, BarbaraSciubba, AdalbertoSemennikov, AlexanderSepp, IndrekSerra, NicolaSerrano, JustineSestini, LorenzoSeyfert, PaulShapkin, MikhailShapoval, IllyaShcheglov, YuryShears, TaraShekhtman, LevShevchenko, VladimirShires, AlexanderSilva Coutinho, RafaelSimi, GabrieleSirendi, MarekSkidmore, NicolaSkillicorn, IanSkwarnicki, TomaszSmith, AnthonySmith, EdmundSmith, ElunedSmith, JacksonSmith, MarkSnoek, HellaSokoloff, MichaelSoler, PaulSoomro, FatimaSouza, DanielSouza De Paula, BrunoSpaan, BernhardSpradlin, PatrickSridharan, SrikanthStagni, FedericoStahl, MarianStahl, SaschaSteinkamp, OlafStenyakin, OlegSterpka, Christopher FrancisStevenson, ScottStoica, SabinStone, SheldonStoraci, BarbaraStracka, SimoneStraticiuc, MihaiStraumann, UlrichStroili, RobertoSun, LiangSutcliffe, WilliamSwientek, KrzysztofSwientek, StefanSyropoulos, VasileiosSzczekowski, MarekSzczypka, PaulSzumlak, TomaszT'Jampens, StephaneTeklishyn, MaksymTellarini, GiuliaTeubert, FredericThomas, ChristopherThomas, Ericvan Tilburg, JeroenTisserand, VincentTobin, MarkTodd, JacobTolk, SiimTomassetti, LucaTonelli, DiegoTopp-Joergensen, StigTorr, NicholasTournefier, EdwigeTourneur, StephaneTran, Minh TâmTresch, MarcoTrisovic, AnaTsaregorodtsev, AndreiTsopelas, PanagiotisTuning, NielsUbeda Garcia, MarioUkleja, ArturUstyuzhanin, AndreyUwer, UlrichVacca, ClaudiaVagnoni, VincenzoValenti, GiovanniVallier, AlexisVazquez Gomez, RicardoVazquez Regueiro, PabloVázquez Sierra, CarlosVecchi, StefaniaVelthuis, JaapVeltri, MicheleVeneziano, GiovanniVesterinen, MikaViana Barbosa, Joao VitorViaud, BenoitVieira, DanielVieites Diaz, MariaVilasis-Cardona, XavierVollhardt, AchimVolyanskyy, DmytroVoong, DavidVorobyev, AlexeyVorobyev, VitalyVoß, Christiande Vries, JaccoWaldi, RolandWallace, CharlotteWallace, RonanWalsh, JohnWandernoth, SebastianWang, JianchunWard, DavidWatson, NigelWebsdale, DavidWhitehead, MarkWiedner, DirkWilkinson, GuyWilkinson, MichaelWilliams, MatthewWilliams, MikeWilschut, HansWilson, FergusWimberley, JackWishahi, JulianWislicki, WojciechWitek, MariuszWormser, GuyWotton, StephenWright, SimonWyllie, KennethXie, YuehongXing, ZhouXu, ZhiruiYang, ZhenweiYuan, XuhaoYushchenko, OlegZangoli, MariaZavertyaev, MikhailZhang, LimingZhang, Wen ChaoZhang, YanxiZhelezov, AlexeyZhokhov, AnatolyZhong, LiangObservation of two new $\Xi_b^-$ baryon resonancesParticle Physics - ExperimentTwo structures are observed close to the kinematic threshold in the $\Xi_b^0\pi^-$ mass spectrum in a sample of proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb$^{-1}$ recorded by the LHCb experiment. In the quark model, two baryonic resonances with quark content $bds$ are expected in this mass region: the spin-parity $J^P = \frac{1}{2}^+$ and $J^P=\frac{3}{2}^+$ states, denoted $\Xi_b^{\prime -}$ and $\Xi_b^{*-}$. Interpreting the structures as these resonances, we measure the mass differences and the width of the heavier state to be \begin{eqnarray*} m(\Xi_b^{\prime -}) - m(\Xi_b^0) - m(\pi^{-}) &=& 3.653 \pm 0.018 \pm 0.006~{\rm MeV}/c^2, \\ m(\Xi_b^{*-}) - m(\Xi_b^0) - m(\pi^{-}) &=& 23.96 \pm 0.12\pm 0.06~{\rm MeV}/c^2, \\ \Gamma(\Xi_b^{*-}) &=& 1.65 \pm 0.31 \pm 0.10~{\rm MeV}, \end{eqnarray*} where the first and second uncertainties are statistical and systematic, respectively. The width of the lighter state is consistent with zero, and we place an upper limit of $\Gamma(\Xi_b^{\prime -}) < 0.08$ MeV at 95 % confidence level. Relative production rates of these states are also reported.<p>Two structures are observed close to the kinematic threshold in the <inline-formula><mml:math display="inline"><mml:mrow><mml:msubsup><mml:mrow><mml:mi mathvariant="normal">Ξ</mml:mi></mml:mrow><mml:mrow><mml:mi>b</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msubsup><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mo>-</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> mass spectrum in a sample of proton-proton collision data, corresponding to an integrated luminosity of <inline-formula><mml:math display="inline"><mml:mrow><mml:mn>3.0</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:msup><mml:mrow><mml:mi>fb</mml:mi></mml:mrow><mml:mrow><mml:mo>-</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula>, recorded by the LHCb experiment. In the quark model, two baryonic resonances with quark content <inline-formula><mml:math display="inline"><mml:mi>b</mml:mi><mml:mi>d</mml:mi><mml:mi>s</mml:mi></mml:math></inline-formula> are expected in this mass region: the spin-parity <inline-formula><mml:math display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>J</mml:mi></mml:mrow><mml:mrow><mml:mi>P</mml:mi></mml:mrow></mml:msup><mml:mo>=</mml:mo><mml:msup><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mn>1</mml:mn><mml:mo>/</mml:mo><mml:mn>2</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> and <inline-formula><mml:math display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>J</mml:mi></mml:mrow><mml:mrow><mml:mi>P</mml:mi></mml:mrow></mml:msup><mml:mo>=</mml:mo><mml:msup><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mn>3</mml:mn><mml:mo>/</mml:mo><mml:mn>2</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> states, denoted <inline-formula><mml:math display="inline"><mml:mrow><mml:msubsup><mml:mrow><mml:mi mathvariant="normal">Ξ</mml:mi></mml:mrow><mml:mrow><mml:mi>b</mml:mi></mml:mrow><mml:mrow><mml:mo>′</mml:mo><mml:mo>-</mml:mo></mml:mrow></mml:msubsup></mml:mrow></mml:math></inline-formula> and <inline-formula><mml:math display="inline"><mml:msubsup><mml:mi mathvariant="normal">Ξ</mml:mi><mml:mi>b</mml:mi><mml:mrow><mml:mo>*</mml:mo><mml:mo>-</mml:mo></mml:mrow></mml:msubsup></mml:math></inline-formula>. Interpreting the structures as these resonances, we measure the mass differences and the width of the heavier state to be <inline-formula><mml:math display="inline"><mml:mrow><mml:mi>m</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:msubsup><mml:mrow><mml:mi mathvariant="normal">Ξ</mml:mi></mml:mrow><mml:mrow><mml:mi>b</mml:mi></mml:mrow><mml:mrow><mml:mo>′</mml:mo><mml:mo>-</mml:mo></mml:mrow></mml:msubsup><mml:mo stretchy="false">)</mml:mo><mml:mo>-</mml:mo><mml:mi>m</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:msubsup><mml:mrow><mml:mi mathvariant="normal">Ξ</mml:mi></mml:mrow><mml:mrow><mml:mi>b</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msubsup><mml:mo stretchy="false">)</mml:mo><mml:mo>-</mml:mo><mml:mi>m</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mo>-</mml:mo></mml:mrow></mml:msup><mml:mo stretchy="false">)</mml:mo><mml:mo>=</mml:mo><mml:mn>3.653</mml:mn><mml:mo>±</mml:mo><mml:mn>0.018</mml:mn><mml:mo>±</mml:mo><mml:mn>0.006</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>MeV</mml:mi><mml:mo stretchy="false">/</mml:mo><mml:msup><mml:mrow><mml:mi>c</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math display="inline"><mml:mrow><mml:mi>m</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:msubsup><mml:mrow><mml:mi mathvariant="normal">Ξ</mml:mi></mml:mrow><mml:mrow><mml:mi>b</mml:mi></mml:mrow><mml:mrow><mml:mo>*</mml:mo><mml:mo>-</mml:mo></mml:mrow></mml:msubsup><mml:mo stretchy="false">)</mml:mo><mml:mo>-</mml:mo><mml:mi>m</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:msubsup><mml:mrow><mml:mi mathvariant="normal">Ξ</mml:mi></mml:mrow><mml:mrow><mml:mi>b</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msubsup><mml:mo stretchy="false">)</mml:mo><mml:mo>-</mml:mo><mml:mi>m</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mo>-</mml:mo></mml:mrow></mml:msup><mml:mo stretchy="false">)</mml:mo><mml:mo>=</mml:mo><mml:mspace linebreak="goodbreak"/><mml:mn>23.96</mml:mn><mml:mo>±</mml:mo><mml:mn>0.12</mml:mn><mml:mo>±</mml:mo><mml:mn>0.06</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>MeV</mml:mi><mml:mo stretchy="false">/</mml:mo><mml:msup><mml:mrow><mml:mi>c</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math display="inline"><mml:mrow><mml:mi mathvariant="normal">Γ</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:msubsup><mml:mrow><mml:mi mathvariant="normal">Ξ</mml:mi></mml:mrow><mml:mrow><mml:mi>b</mml:mi></mml:mrow><mml:mrow><mml:mo>*</mml:mo><mml:mo>-</mml:mo></mml:mrow></mml:msubsup><mml:mo stretchy="false">)</mml:mo><mml:mo indentalign="id" indenttarget="und1a1">=</mml:mo><mml:mn>1.65</mml:mn><mml:mo>±</mml:mo><mml:mn>0.31</mml:mn><mml:mo>±</mml:mo><mml:mn>0.10</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>MeV</mml:mi><mml:mo>,</mml:mo></mml:mrow></mml:math></inline-formula> where the first and second uncertainties are statistical and systematic, respectively. The width of the lighter state is consistent with zero, and we place an upper limit of <inline-formula><mml:math display="inline"><mml:mrow><mml:mi mathvariant="normal">Γ</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:msubsup><mml:mrow><mml:mi mathvariant="normal">Ξ</mml:mi></mml:mrow><mml:mrow><mml:mi>b</mml:mi></mml:mrow><mml:mrow><mml:mo>′</mml:mo><mml:mo>-</mml:mo></mml:mrow></mml:msubsup><mml:mo stretchy="false">)</mml:mo><mml:mo><</mml:mo><mml:mn>0.08</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>MeV</mml:mi></mml:mrow></mml:math></inline-formula> at 95% confidence level. Relative production rates of these states are also reported.</p>Two structures are observed close to the kinematic threshold in the $\Xi_b^0 \pi^-$ mass spectrum in a sample of proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb$^{-1}$ recorded by the LHCb experiment. In the quark model, two baryonic resonances with quark content $bds$ are expected in this mass region: the spin-parity $J^P = \frac{1}{2}^+$ and $J^P=\frac{3}{2}^+$ states, denoted $\Xi_b^{\prime -}$ and $\Xi_b^{*-}$. Interpreting the structures as these resonances, we measure the mass differences and the width of the heavier state to be $m(\Xi_b^{\prime -}) - m(\Xi_b^0) - m(\pi^{-}) = 3.653 \pm 0.018 \pm 0.006$ MeV$/c^2$, $m(\Xi_b^{*-}) - m(\Xi_b^0) - m(\pi^{-}) = 23.96 \pm 0.12 \pm 0.06$ MeV$/c^2$, $\Gamma(\Xi_b^{*-}) = 1.65 \pm 0.31 \pm 0.10$ MeV, where the first and second uncertainties are statistical and systematic, respectively. The width of the lighter state is consistent with zero, and we place an upper limit of $\Gamma(\Xi_b^{\prime -}) < 0.08$ MeV at 95% confidence level. Relative production rates of these states are also reported.arXiv:1411.4849CERN-PH-EP-2014-279LHCB-PAPER-2014-061CERN-PH-EP-2014-279LHCB-PAPER-2014-061oai:cds.cern.ch:19706902014-11-18 |
spellingShingle | Particle Physics - Experiment Aaij, Roel Adeva, Bernardo Adinolfi, Marco Affolder, Anthony Ajaltouni, Ziad Akar, Simon Albrecht, Johannes Alessio, Federico Alexander, Michael Ali, Suvayu Alkhazov, Georgy Alvarez Cartelle, Paula Alves Jr, Antonio Augusto Amato, Sandra Amerio, Silvia Amhis, Yasmine An, Liupan Anderlini, Lucio Anderson, Jonathan Andreassen, Rolf Andreotti, Mirco Andrews, Jason Appleby, Robert Aquines Gutierrez, Osvaldo Archilli, Flavio Artamonov, Alexander Artuso, Marina Aslanides, Elie Auriemma, Giulio Baalouch, Marouen Bachmann, Sebastian Back, John Badalov, Alexey Baesso, Clarissa Baldini, Wander Barlow, Roger Barschel, Colin Barsuk, Sergey Barter, William Batozskaya, Varvara Battista, Vincenzo Bay, Aurelio Beaucourt, Leo Beddow, John Bedeschi, Franco Bediaga, Ignacio Belogurov, Sergey Belous, Konstantin Belyaev, Ivan Ben-Haim, Eli Bencivenni, Giovanni Benson, Sean Benton, Jack Berezhnoy, Alexander Bernet, Roland Bertolin, Alessandro Bettler, Marc-Olivier van Beuzekom, Martinus Bien, Alexander Bifani, Simone Bird, Thomas Bizzeti, Andrea Bjørnstad, Pål Marius Blake, Thomas Blanc, Frédéric Blouw, Johan Blusk, Steven Bocci, Valerio Bondar, Alexander Bondar, Nikolay Bonivento, Walter Borghi, Silvia Borgia, Alessandra Borsato, Martino Bowcock, Themistocles Bowen, Espen Eie Bozzi, Concezio Brett, David Britsch, Markward Britton, Thomas Brodzicka, Jolanta Brook, Nicholas Bursche, Albert Buytaert, Jan Cadeddu, Sandro Calabrese, Roberto Calvi, Marta Calvo Gomez, Miriam Campana, Pierluigi Campora Perez, Daniel Capriotti, Lorenzo Carbone, Angelo Carboni, Giovanni Cardinale, Roberta Cardini, Alessandro Carson, Laurence Carvalho Akiba, Kazuyoshi Casanova Mohr, Raimon Casse, Gianluigi Cassina, Lorenzo Castillo Garcia, Lucia Cattaneo, Marco Cauet, Christophe Cenci, Riccardo Charles, Matthew Charpentier, Philippe Chefdeville, Maximilien Chen, Shanzhen Cheung, Shu-Faye Chiapolini, Nicola Chrzaszcz, Marcin Cid Vidal, Xabier Ciezarek, Gregory Clarke, Peter Clemencic, Marco Cliff, Harry Closier, Joel Coco, Victor Cogan, Julien Cogneras, Eric Cogoni, Violetta Cojocariu, Lucian Collazuol, Gianmaria Collins, Paula Comerma-Montells, Albert Contu, Andrea Cook, Andrew Coombes, Matthew Coquereau, Samuel Corti, Gloria Corvo, Marco Counts, Ian Couturier, Benjamin Cowan, Greig Craik, Daniel Charles Crocombe, Andrew Christopher Cruz Torres, Melissa Maria Cunliffe, Samuel Currie, Robert D'Ambrosio, Carmelo Dalseno, Jeremy David, Pascal David, Pieter Davis, Adam De Bruyn, Kristof De Capua, Stefano De Cian, Michel De Miranda, Jussara De Paula, Leandro De Silva, Weeraddana De Simone, Patrizia Dean, Cameron Thomas Decamp, Daniel Deckenhoff, Mirko Del Buono, Luigi Déléage, Nicolas Derkach, Denis Deschamps, Olivier Dettori, Francesco Dey, Biplab Di Canto, Angelo Di Domenico, Antonio Dijkstra, Hans Donleavy, Stephanie Dordei, Francesca Dorigo, Mirco Dosil Suárez, Alvaro Dossett, David Dovbnya, Anatoliy Dreimanis, Karlis Dujany, Giulio Dupertuis, Frederic Durante, Paolo Dzhelyadin, Rustem Dziurda, Agnieszka Dzyuba, Alexey Easo, Sajan Egede, Ulrik Egorychev, Victor Eidelman, Semen Eisenhardt, Stephan Eitschberger, Ulrich Ekelhof, Robert Eklund, Lars El Rifai, Ibrahim Elsasser, Christian Ely, Scott Esen, Sevda Evans, Hannah Mary Evans, Timothy Falabella, Antonio Färber, Christian Farinelli, Chiara Farley, Nathanael Farry, Stephen Fay, Robert Ferguson, Dianne Fernandez Albor, Victor Ferreira Rodrigues, Fernando Ferro-Luzzi, Massimiliano Filippov, Sergey Fiore, Marco Fiorini, Massimiliano Firlej, Miroslaw Fitzpatrick, Conor Fiutowski, Tomasz Fol, Philip Fontana, Marianna Fontanelli, Flavio Forty, Roger Francisco, Oscar Frank, Markus Frei, Christoph Frosini, Maddalena Fu, Jinlin Furfaro, Emiliano Gallas Torreira, Abraham Galli, Domenico Gallorini, Stefano Gambetta, Silvia Gandelman, Miriam Gandini, Paolo Gao, Yuanning García Pardiñas, Julián Garofoli, Justin Garra Tico, Jordi Garrido, Lluis Gascon, David Gaspar, Clara Gastaldi, Ugo Gauld, Rhorry Gavardi, Laura Gazzoni, Giulio Geraci, Angelo Gersabeck, Evelina Gersabeck, Marco Gershon, Timothy Ghez, Philippe Gianelle, Alessio Gianì, Sebastiana Gibson, Valerie Giubega, Lavinia-Helena Gligorov, V.V. Göbel, Carla Golubkov, Dmitry Golutvin, Andrey Gomes, Alvaro Gotti, Claudio Grabalosa Gándara, Marc Graciani Diaz, Ricardo Granado Cardoso, Luis Alberto Graugés, Eugeni Graverini, Elena Graziani, Giacomo Grecu, Alexandru Greening, Edward Gregson, Sam Griffith, Peter Grillo, Lucia Grünberg, Oliver Gui, Bin Gushchin, Evgeny Guz, Yury Gys, Thierry Hadjivasiliou, Christos Haefeli, Guido Haen, Christophe Haines, Susan Hall, Samuel Hamilton, Brian Hampson, Thomas Han, Xiaoxue Hansmann-Menzemer, Stephanie Harnew, Neville Harnew, Samuel Harrison, Jonathan He, Jibo Head, Timothy Heijne, Veerle Hennessy, Karol Henrard, Pierre Henry, Louis Hernando Morata, Jose Angel van Herwijnen, Eric Heß, Miriam Hicheur, Adlène Hill, Donal Hoballah, Mostafa Hombach, Christoph Hulsbergen, Wouter Hussain, Nazim Hutchcroft, David Hynds, Daniel Idzik, Marek Ilten, Philip Jacobsson, Richard Jaeger, Andreas Jalocha, Pawel Jans, Eddy Jaton, Pierre Jawahery, Abolhassan Jing, Fanfan John, Malcolm Johnson, Daniel Jones, Christopher Joram, Christian Jost, Beat Jurik, Nathan Kandybei, Sergii Kanso, Walaa Karacson, Matthias Karbach, Moritz Karodia, Sarah Kelsey, Matthew Kenyon, Ian Ketel, Tjeerd Khanji, Basem Khurewathanakul, Chitsanu Klaver, Suzanne Klimaszewski, Konrad Kochebina, Olga Kolpin, Michael Komarov, Ilya Koopman, Rose Koppenburg, Patrick Korolev, Mikhail Kravchuk, Leonid Kreplin, Katharina Kreps, Michal Krocker, Georg Krokovny, Pavel Kruse, Florian Kucewicz, Wojciech Kucharczyk, Marcin Kudryavtsev, Vasily Kurek, Krzysztof Kvaratskheliya, Tengiz La Thi, Viet Nga Lacarrere, Daniel Lafferty, George Lai, Adriano Lambert, Dean Lambert, Robert W Lanfranchi, Gaia Langenbruch, Christoph Langhans, Benedikt Latham, Thomas Lazzeroni, Cristina Le Gac, Renaud van Leerdam, Jeroen Lees, Jean-Pierre Lefèvre, Regis Leflat, Alexander Lefrançois, Jacques Leroy, Olivier Lesiak, Tadeusz Leverington, Blake Li, Yiming Likhomanenko, Tatiana Liles, Myfanwy Lindner, Rolf Linn, Christian Lionetto, Federica Liu, Bo Lohn, Stefan Longstaff, Iain Lopes, Jose Lowdon, Peter Lucchesi, Donatella Luo, Haofei Lupato, Anna Luppi, Eleonora Lupton, Oliver Machefert, Frederic Machikhiliyan, Irina V Maciuc, Florin Maev, Oleg Malde, Sneha Malinin, Alexander Manca, Giulia Mancinelli, Giampiero Mapelli, Alessandro Maratas, Jan Marchand, Jean François Marconi, Umberto Marin Benito, Carla Marino, Pietro Märki, Raphael Marks, Jörg Martellotti, Giuseppe Martinelli, Maurizio Martinez Santos, Diego Martinez Vidal, Fernando Martins Tostes, Danielle Massafferri, André Matev, Rosen Mathe, Zoltan Matteuzzi, Clara Mazurov, Alexander McCann, Michael McCarthy, James McNab, Andrew McNulty, Ronan McSkelly, Ben Meadows, Brian Meier, Frank Meissner, Marco Merk, Marcel Milanes, Diego Alejandro Minard, Marie-Noelle Moggi, Niccolò Molina Rodriguez, Josue Monteil, Stephane Morandin, Mauro Morawski, Piotr Mordà, Alessandro Morello, Michael Joseph Moron, Jakub Morris, Adam Benjamin Mountain, Raymond Muheim, Franz Müller, Katharina Mussini, Manuel Muster, Bastien Naik, Paras Nakada, Tatsuya Nandakumar, Raja Nasteva, Irina Needham, Matthew Neri, Nicola Neubert, Sebastian Neufeld, Niko Neuner, Max Nguyen, Anh Duc Nguyen, Thi-Dung Nguyen-Mau, Chung Nicol, Michelle Niess, Valentin Niet, Ramon Nikitin, Nikolay Nikodem, Thomas Novoselov, Alexey O'Hanlon, Daniel Patrick Oblakowska-Mucha, Agnieszka Obraztsov, Vladimir Ogilvy, Stephen Okhrimenko, Oleksandr Oldeman, Rudolf Onderwater, Gerco Orlandea, Marius Otalora Goicochea, Juan Martin Otto, Adam Owen, Patrick Oyanguren, Maria Arantza Pal, Bilas Kanti Palano, Antimo Palombo, Fernando Palutan, Matteo Panman, Jacob Papanestis, Antonios Pappagallo, Marco Pappalardo, Luciano Parkes, Christopher Parkinson, Christopher John Passaleva, Giovanni Patel, Girish Patel, Mitesh Patrignani, Claudia Pearce, Alex Pellegrino, Antonio Penso, Gianni Pepe Altarelli, Monica Perazzini, Stefano Perret, Pascal Pescatore, Luca Pesen, Erhan Petridis, Konstantin Petrolini, Alessandro Picatoste Olloqui, Eduardo Pietrzyk, Boleslaw Pilař, Tomas Pinci, Davide Pistone, Alessandro Playfer, Stephen Plo Casasus, Maximo Polci, Francesco Poluektov, Anton Polyakov, Ivan Polycarpo, Erica Popov, Alexander Popov, Dmitry Popovici, Bogdan Potterat, Cédric Price, Eugenia Price, Joseph David Prisciandaro, Jessica Pritchard, Adrian Prouve, Claire Pugatch, Valery Puig Navarro, Albert Punzi, Giovanni Qian, Wenbin Rachwal, Bartolomiej Rademacker, Jonas Rakotomiaramanana, Barinjaka Rama, Matteo Rangel, Murilo Raniuk, Iurii Rauschmayr, Nathalie Raven, Gerhard Redi, Federico Reichert, Stefanie Reid, Matthew dos Reis, Alberto Ricciardi, Stefania Richards, Sophie Rihl, Mariana Rinnert, Kurt Rives Molina, Vincente Robbe, Patrick Rodrigues, Ana Barbara Rodrigues, Eduardo Rodriguez Perez, Pablo Roiser, Stefan Romanovsky, Vladimir Romero Vidal, Antonio Rotondo, Marcello Rouvinet, Julien Ruf, Thomas Ruiz, Hugo Ruiz Valls, Pablo Saborido Silva, Juan Jose Sagidova, Naylya Sail, Paul Saitta, Biagio Salustino Guimaraes, Valdir Sanchez Mayordomo, Carlos Sanmartin Sedes, Brais Santacesaria, Roberta Santamarina Rios, Cibran Santovetti, Emanuele Sarti, Alessio Satriano, Celestina Satta, Alessia Saunders, Daniel Martin Savrina, Darya Schiller, Manuel Schindler, Heinrich Schlupp, Maximilian Schmelling, Michael Schmidt, Burkhard Schneider, Olivier Schopper, Andreas Schune, Marie Helene Schwemmer, Rainer Sciascia, Barbara Sciubba, Adalberto Semennikov, Alexander Sepp, Indrek Serra, Nicola Serrano, Justine Sestini, Lorenzo Seyfert, Paul Shapkin, Mikhail Shapoval, Illya Shcheglov, Yury Shears, Tara Shekhtman, Lev Shevchenko, Vladimir Shires, Alexander Silva Coutinho, Rafael Simi, Gabriele Sirendi, Marek Skidmore, Nicola Skillicorn, Ian Skwarnicki, Tomasz Smith, Anthony Smith, Edmund Smith, Eluned Smith, Jackson Smith, Mark Snoek, Hella Sokoloff, Michael Soler, Paul Soomro, Fatima Souza, Daniel Souza De Paula, Bruno Spaan, Bernhard Spradlin, Patrick Sridharan, Srikanth Stagni, Federico Stahl, Marian Stahl, Sascha Steinkamp, Olaf Stenyakin, Oleg Sterpka, Christopher Francis Stevenson, Scott Stoica, Sabin Stone, Sheldon Storaci, Barbara Stracka, Simone Straticiuc, Mihai Straumann, Ulrich Stroili, Roberto Sun, Liang Sutcliffe, William Swientek, Krzysztof Swientek, Stefan Syropoulos, Vasileios Szczekowski, Marek Szczypka, Paul Szumlak, Tomasz T'Jampens, Stephane Teklishyn, Maksym Tellarini, Giulia Teubert, Frederic Thomas, Christopher Thomas, Eric van Tilburg, Jeroen Tisserand, Vincent Tobin, Mark Todd, Jacob Tolk, Siim Tomassetti, Luca Tonelli, Diego Topp-Joergensen, Stig Torr, Nicholas Tournefier, Edwige Tourneur, Stephane Tran, Minh Tâm Tresch, Marco Trisovic, Ana Tsaregorodtsev, Andrei Tsopelas, Panagiotis Tuning, Niels Ubeda Garcia, Mario Ukleja, Artur Ustyuzhanin, Andrey Uwer, Ulrich Vacca, Claudia Vagnoni, Vincenzo Valenti, Giovanni Vallier, Alexis Vazquez Gomez, Ricardo Vazquez Regueiro, Pablo Vázquez Sierra, Carlos Vecchi, Stefania Velthuis, Jaap Veltri, Michele Veneziano, Giovanni Vesterinen, Mika Viana Barbosa, Joao Vitor Viaud, Benoit Vieira, Daniel Vieites Diaz, Maria Vilasis-Cardona, Xavier Vollhardt, Achim Volyanskyy, Dmytro Voong, David Vorobyev, Alexey Vorobyev, Vitaly Voß, Christian de Vries, Jacco Waldi, Roland Wallace, Charlotte Wallace, Ronan Walsh, John Wandernoth, Sebastian Wang, Jianchun Ward, David Watson, Nigel Websdale, David Whitehead, Mark Wiedner, Dirk Wilkinson, Guy Wilkinson, Michael Williams, Matthew Williams, Mike Wilschut, Hans Wilson, Fergus Wimberley, Jack Wishahi, Julian Wislicki, Wojciech Witek, Mariusz Wormser, Guy Wotton, Stephen Wright, Simon Wyllie, Kenneth Xie, Yuehong Xing, Zhou Xu, Zhirui Yang, Zhenwei Yuan, Xuhao Yushchenko, Oleg Zangoli, Maria Zavertyaev, Mikhail Zhang, Liming Zhang, Wen Chao Zhang, Yanxi Zhelezov, Alexey Zhokhov, Anatoly Zhong, Liang Observation of two new $\Xi_b^-$ baryon resonances |
title | Observation of two new $\Xi_b^-$ baryon resonances |
title_full | Observation of two new $\Xi_b^-$ baryon resonances |
title_fullStr | Observation of two new $\Xi_b^-$ baryon resonances |
title_full_unstemmed | Observation of two new $\Xi_b^-$ baryon resonances |
title_short | Observation of two new $\Xi_b^-$ baryon resonances |
title_sort | observation of two new $\xi_b^-$ baryon resonances |
topic | Particle Physics - Experiment |
url | https://dx.doi.org/10.1103/PhysRevLett.114.062004 http://cds.cern.ch/record/1970690 |
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