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Observation of the decay $\Xi_b^- \to p K^-K^-$

Decays of the Ξb- and Ωb- baryons to the charmless final states ph-h′-, where h(′) denotes a kaon or pion, are searched for with the LHCb detector. The analysis is based on a sample of proton-proton collision data collected at center-of-mass energies s=7 and 8 TeV, corresponding to an integrated lum...

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Ricardo, Granado Cardoso, Luis Alberto, Graugés, Eugeni, Graverini, Elena, Graziani, Giacomo, Grecu, Alexandru, Griffith, Peter, Grillo, Lucia, Gruberg Cazon, Barak Raimond, Grünberg, Oliver, Gushchin, Evgeny, Guz, Yury, Gys, Thierry, Göbel, Carla, Hadavizadeh, Thomas, Hadjivasiliou, Christos, Haefeli, Guido, Haen, Christophe, Haines, Susan, Hall, Samuel, Hamilton, Brian, Han, Xiaoxue, Hansmann-Menzemer, Stephanie, Harnew, Neville, Harnew, Samuel, Harrison, Jonathan, Hatch, Mark, He, Jibo, Head, Timothy, Heister, Arno, Hennessy, Karol, Henrard, Pierre, Henry, Louis, van Herwijnen, Eric, Heß, Miriam, Hicheur, Adlène, Hill, Donal, Hombach, Christoph, Hopchev, P H, Hulsbergen, Wouter, Humair, Thibaud, Hushchyn, Mikhail, Hutchcroft, David, Idzik, Marek, Ilten, Philip, Jacobsson, Richard, Jaeger, Andreas, Jalocha, Pawel, Jans, Eddy, Jawahery, Abolhassan, Jiang, Feng, John, Malcolm, Johnson, Daniel, Jones, Christopher, Joram, Christian, Jost, Beat, Jurik, Nathan, Kandybei, Sergii, Karacson, Matthias, Kariuki, James Mwangi, Karodia, Sarah, Kecke, Matthieu, Kelsey, Matthew, Kenzie, Matthew, Ketel, Tjeerd, Khairullin, Egor, Khanji, Basem, Khurewathanakul, Chitsanu, Kirn, Thomas, Klaver, Suzanne, Klimaszewski, Konrad, Koliiev, Serhii, Kolpin, Michael, Komarov, Ilya, Koopman, Rose, Koppenburg, Patrick, Kosmyntseva, Alena, Kozachuk, Anastasiia, Kozeiha, Mohamad, Kravchuk, Leonid, Kreplin, Katharina, Kreps, Michal, Krokovny, Pavel, Kruse, Florian, Krzemien, Wojciech, Kucewicz, Wojciech, Kucharczyk, Marcin, Kudryavtsev, Vasily, Kuonen, Axel Kevin, Kurek, Krzysztof, Kvaratskheliya, Tengiz, Lacarrere, Daniel, Lafferty, George, Lai, Adriano, Lanfranchi, Gaia, Langenbruch, Christoph, Latham, Thomas, Lazzeroni, Cristina, Le Gac, Renaud, van Leerdam, Jeroen, Leflat, Alexander, Lefrançois, Jacques, Lefèvre, Regis, Lemaitre, Florian, Lemos Cid, Edgar, Leroy, Olivier, Lesiak, Tadeusz, Leverington, Blake, Li, Tenglin, Li, Yiming, Likhomanenko, Tatiana, Lindner, Rolf, Linn, Christian, 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Milanes, Diego Alejandro, Minard, Marie-Noelle, Mitzel, Dominik Stefan, Mogini, Andrea, Molina Rodriguez, Josue, Monroy, Ignacio Alberto, Monteil, Stephane, Morandin, Mauro, Morawski, Piotr, Mordà, Alessandro, Morello, Michael Joseph, Morgunova, Olga, Moron, Jakub, Morris, Adam Benjamin, Mountain, Raymond, Muheim, Franz, Mulder, Mick, Mussini, Manuel, Müller, Dominik, Müller, Janine, Müller, Katharina, Müller, Vanessa, Naik, Paras, Nakada, Tatsuya, Nandakumar, Raja, Nandi, Anita, Nasteva, Irina, Needham, Matthew, Neri, Nicola, Neubert, Sebastian, Neufeld, Niko, Neuner, Max, Nguyen, Thi Dung, Nguyen-Mau, Chung, Nieswand, Simon, Niet, Ramon, Nikitin, Nikolay, Nikodem, Thomas, Nogay, Alla, Novoselov, Alexey, O'Hanlon, Daniel Patrick, Oblakowska-Mucha, Agnieszka, Obraztsov, Vladimir, Ogilvy, Stephen, Oldeman, Rudolf, Onderwater, Gerco, Otalora Goicochea, Juan Martin, Otto, Adam, Owen, Patrick, Oyanguren, Maria Aranzazu, Pais, Preema Rennee, Palano, Antimo, Palombo, Fernando, Palutan, Matteo, Papanestis, Antonios, Pappagallo, Marco, Pappalardo, Luciano, Parker, William, Parkes, Christopher, Passaleva, Giovanni, Pastore, Alessandra, Patel, Girish, Patel, Mitesh, Patrignani, Claudia, Pearce, Alex, Pellegrino, Antonio, Penso, Gianni, Pepe Altarelli, Monica, Perazzini, Stefano, Perret, Pascal, Pescatore, Luca, Petridis, Konstantinos, Petrolini, Alessandro, Petrov, Aleksandr, Petruzzo, Marco, Picatoste Olloqui, Eduardo, Pietrzyk, Boleslaw, Pikies, Malgorzata, Pinci, Davide, Pistone, Alessandro, Piucci, Alessio, Placinta, Vlad-Mihai, Playfer, Stephen, Plo Casasus, Maximo, Poikela, Tuomas, Polci, Francesco, Poluektov, Anton, Polyakov, Ivan, Polycarpo, Erica, Pomery, Gabriela Johanna, Popov, Alexander, Popov, Dmitry, Popovici, Bogdan, Poslavskii, Stanislav, Potterat, Cédric, Price, Eugenia, Price, Joseph David, Prisciandaro, Jessica, Pritchard, Adrian, Prouve, Claire, Pugatch, Valery, Puig Navarro, Albert, Punzi, Giovanni, Qian, Wenbin, Quagliani, Renato, Rachwal, Bartolomiej, Rademacker, Jonas, Rama, Matteo, Ramos Pernas, Miguel, Rangel, Murilo, Raniuk, Iurii, Ratnikov, Fedor, Raven, Gerhard, Redi, Federico, Reichert, Stefanie, dos Reis, Alberto, Remon Alepuz, Clara, Renaudin, Victor, Ricciardi, Stefania, Richards, Sophie, Rihl, Mariana, Rinnert, Kurt, Rives Molina, Vicente, Robbe, Patrick, Rodrigues, Ana Barbara, Rodrigues, Eduardo, Rodriguez Lopez, Jairo Alexis, Rodriguez Perez, Pablo, Rogozhnikov, Alexey, Roiser, Stefan, Rollings, Alexandra Paige, Romanovskiy, Vladimir, Romero Vidal, Antonio, Ronayne, John William, Rotondo, Marcello, Rudolph, Matthew Scott, Ruf, Thomas, Ruiz Valls, Pablo, Saborido Silva, Juan Jose, Sadykhov, Elnur, Sagidova, Naylya, Saitta, Biagio, Salustino Guimaraes, Valdir, Sanchez Mayordomo, Carlos, Sanmartin Sedes, Brais, Santacesaria, Roberta, Santamarina Rios, Cibran, Santimaria, Marco, Santovetti, Emanuele, Sarti, Alessio, Satriano, Celestina, Satta, Alessia, Saunders, Daniel Martin, Savrina, Darya, Schael, Stefan, 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Stemmle, Simon, Stenyakin, Oleg, Stevens, Holger, Stevenson, Scott, Stoica, Sabin, Stone, Sheldon, Storaci, Barbara, Stracka, Simone, Straticiuc, Mihai, Straumann, Ulrich, Sun, Liang, Sutcliffe, William, Swientek, Krzysztof, Syropoulos, Vasileios, Szczekowski, Marek, Szumlak, Tomasz, T'Jampens, Stephane, Tayduganov, Andrey, Tekampe, Tobias, Tellarini, Giulia, Teubert, Frederic, Thomas, Eric, van Tilburg, Jeroen, Tilley, Matthew James, Tisserand, Vincent, Tobin, Mark, Tolk, Siim, Tomassetti, Luca, Tonelli, Diego, Topp-Joergensen, Stig, Toriello, Francis, Tournefier, Edwige, Tourneur, Stephane, Trabelsi, Karim, Traill, Murdo, Tran, Minh Tâm, Tresch, Marco, Trisovic, Ana, Tsaregorodtsev, Andrei, Tsopelas, Panagiotis, Tully, Alison, Tuning, Niels, Ukleja, Artur, Ustyuzhanin, Andrey, Uwer, Ulrich, Vacca, Claudia, Vagnoni, Vincenzo, Valassi, Andrea, Valat, Sebastien, Valenti, Giovanni, Vazquez Gomez, Ricardo, Vazquez Regueiro, Pablo, Vecchi, Stefania, van Veghel, Maarten, Velthuis, Jaap, Veltri, Michele, Veneziano, Giovanni, Venkateswaran, Aravindhan, Vernet, Maxime, Vesterinen, Mika, Viana Barbosa, Joao Vitor, Viaud, Benoit, Vieira, Daniel, Vieites Diaz, Maria, Viemann, Harald, Vilasis-Cardona, Xavier, Vitti, Marcela, Volkov, Vladimir, Vollhardt, Achim, Voneki, Balazs, Vorobyev, Alexey, Vorobyev, Vitaly, Voß, Christian, de Vries, Jacco, Vázquez Sierra, Carlos, Waldi, Roland, Wallace, Charlotte, Wallace, Ronan, Walsh, John, Wang, Jianchun, Ward, David, Wark, Heather Mckenzie, Watson, Nigel, Websdale, David, Weiden, Andreas, Whitehead, Mark, Wicht, Jean, Wilkinson, Guy, Wilkinson, Michael, Williams, Mark Richard James, Williams, Matthew, Williams, Mike, Williams, Timothy, Wilson, Fergus, Wimberley, Jack, Wishahi, Julian, Wislicki, Wojciech, Witek, Mariusz, Wormser, Guy, Wotton, Stephen, Wraight, Kenneth, Wyllie, Kenneth, Xie, Yuehong, Xing, Zhou, Xu, Zhirui, Yang, Zhenwei, Yao, Yuezhe, Yin, Hang, Yu, Jiesheng, Yuan, Xuhao, Yushchenko, Oleg, Zarebski, Kristian Alexander, Zavertyaev, Mikhail, Zhang, Liming, Zhang, Yanxi, Zhang, Yu, Zhelezov, Alexey, Zheng, Yangheng, Zhu, Xianglei, Zhukov, Valery, Zucchelli, Stefano
Lenguaje:eng
Publicado: 2016
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.118.071801
http://cds.cern.ch/record/2238497
Descripción
Sumario:Decays of the Ξb- and Ωb- baryons to the charmless final states ph-h′-, where h(′) denotes a kaon or pion, are searched for with the LHCb detector. The analysis is based on a sample of proton-proton collision data collected at center-of-mass energies s=7 and 8 TeV, corresponding to an integrated luminosity of 3  fb-1. The decay Ξb-→pK-K- is observed with a significance of 8.7 standard deviations, and evidence at the level of 3.4 standard deviations is found for the Ξb-→pK-π- decay. Results are reported, relative to the B-→K+K-K- normalization channel, for the products of branching fractions and b-hadron production fractions. The branching fractions of Ξb-→pK-π- and Ξb-→pπ-π- relative to Ξb-→pK-K- decays are also measured.