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Measurement of the $C\!P$ violation parameter $A_\Gamma$ in $D^0 \to K^+K^-$ and $D^0 \to \pi^+\pi^-$ decays

Asymmetries in the time-dependent rates of D0→K+K- and D0→π+π- decays are measured in a pp collision data sample collected with the LHCb detector during LHC Run 1, corresponding to an integrated luminosity of 3  fb-1. The asymmetries in effective decay widths between D0 and D¯0 decays, sensitive to...

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Autores principales: Aaij, Roel, Adeva, Bernardo, Adinolfi, Marco, 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, Andreassi, Guido, Andreotti, Mirco, Andrews, Jason, Appleby, Robert, Archilli, Flavio, d'Argent, Philippe, Arnau Romeu, Joan, Artamonov, Alexander, Artuso, Marina, Aslanides, Elie, Auriemma, Giulio, Baalouch, Marouen, Babuschkin, Igor, Bachmann, Sebastian, Back, John, Badalov, Alexey, Baesso, Clarissa, Baker, Sophie, Balagura, Vladislav, Baldini, Wander, Barlow, Roger, Barschel, Colin, Barsuk, Sergey, Barter, William, Baryshnikov, Fedor, Baszczyk, Mateusz, Batozskaya, Varvara, Batsukh, Baasansuren, Battista, Vincenzo, Bay, Aurelio, Beaucourt, Leo, Beddow, John, Bedeschi, Franco, Bediaga, Ignacio, Beiter, Andrew, Bel, Lennaert, Bellee, Violaine, Belloli, Nicoletta, Belous, 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Jeremy, David, Pieter, Davis, Adam, De Bruyn, Kristof, De Capua, Stefano, De Cian, Michel, De Miranda, Jussara, De Paula, Leandro, De Serio, Marilisa, De Simone, Patrizia, Dean, Cameron Thomas, Decamp, Daniel, Deckenhoff, Mirko, Del Buono, Luigi, Demmer, Moritz, Dendek, Adam, Derkach, Denis, Deschamps, Olivier, Dettori, Francesco, Dey, Biplab, Di Canto, Angelo, Dijkstra, Hans, Dordei, Francesca, Dorigo, Mirco, Dosil Suárez, Alvaro, Dovbnya, Anatoliy, Dreimanis, Karlis, Dufour, Laurent, Dujany, Giulio, Dungs, Kevin, Durante, Paolo, Dzhelyadin, Rustem, Dziurda, Agnieszka, Dzyuba, Alexey, Déléage, Nicolas, Easo, Sajan, Ebert, Marcus, Egede, Ulrik, Egorychev, Victor, Eidelman, Semen, Eisenhardt, Stephan, Eitschberger, Ulrich, Ekelhof, Robert, Eklund, Lars, Ely, Scott, Esen, Sevda, Evans, Hannah Mary, Evans, Timothy, Falabella, Antonio, Farley, Nathanael, Farry, Stephen, Fay, Robert, Fazzini, Davide, Ferguson, Dianne, Fernandez Prieto, Antonio, Ferrari, Fabio, Ferreira Rodrigues, Fernando, 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Govorkova, Ekaterina, Graciani Diaz, Ricardo, Granado Cardoso, Luis Alberto, Graugés, Eugeni, Graverini, Elena, Graziani, Giacomo, Grecu, Alexandru, Greim, Roman, 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, 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, Klimkovich, Tatsiana, 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, Lionetto, Federica, Liu, Xuesong, Loh, David, Longstaff, Iain, Lopes, Jose, Lucchesi, Donatella, Lucio Martinez, Miriam, Luo, Haofei, Lupato, Anna, Luppi, Eleonora, Lupton, Oliver, Lusiani, Alberto, Lyu, Xiao-Rui, Machefert, Frederic, Maciuc, Florin, Maev, Oleg, Maguire, Kevin, Malde, Sneha, Malinin, Alexander, Maltsev, Timofei, Manca, Giulia, Mancinelli, Giampiero, Manning, Peter Michael, Maratas, Jan, Marchand, Jean François, Marconi, Umberto, Marin Benito, Carla, Marinangeli, Matthieu, Marino, Pietro, Marks, Jörg, Martellotti, Giuseppe, Martin, Morgan, Martinelli, Maurizio, Martinez Santos, Diego, Martinez Vidal, Fernando, Martins Tostes, Danielle, Massacrier, Laure Marie, Massafferri, André, Matev, Rosen, Mathad, Abhijit, Mathe, Zoltan, Matteuzzi, Clara, Mauri, Andrea, Maurice, Emilie, Maurin, Brice, Mazurov, Alexander, McCann, Michael, McNab, Andrew, McNulty, Ronan, Meadows, Brian, Meier, Frank, Meissner, Marco, Melnychuk, Dmytro, Merk, Marcel, Merli, Andrea, Michielin, Emanuele, Milanes, Diego Alejandro, Minard, Marie-Noelle, Mitzel, Dominik Stefan, Mogini, Andrea, Molina Rodriguez, Josue, Monroy, Igancio 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, 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, Schellenberg, Margarete, Schiller, Manuel, Schindler, Heinrich, Schlupp, Maximilian, Schmelling, Michael, Schmelzer, Timon, Schmidt, Burkhard, Schneider, Olivier, Schopper, Andreas, Schreiner, HF, Schubert, Konstantin, Schubiger, Maxime, Schune, Marie Helene, Schwemmer, Rainer, Sciascia, Barbara, Sciubba, Adalberto, Semennikov, Alexander, Sergi, Antonino, Serra, Nicola, Serrano, Justine, Sestini, Lorenzo, Seyfert, Paul, Shapkin, Mikhail, Shapoval, Illya, Shcheglov, Yury, Shears, Tara, Shekhtman, Lev, Shevchenko, Vladimir, Siddi, Benedetto Gianluca, Silva Coutinho, Rafael, Silva de Oliveira, Luiz Gustavo, Simi, Gabriele, Simone, Saverio, Sirendi, Marek, Skidmore, Nicola, Skwarnicki, Tomasz, Smith, Eluned, Smith, Iwan Thomas, Smith, Jackson, Smith, Mark, Snoek, Hella, Soares Lavra, Lais, Sokoloff, Michael, Soler, Paul, Souza De Paula, Bruno, Spaan, Bernhard, Spradlin, Patrick, Sridharan, Srikanth, Stagni, Federico, Stahl, Marian, Stahl, Sascha, Stefko, Pavol, Stefkova, Slavomira, Steinkamp, Olaf, Stemmle, Simon, Stenyakin, Oleg, Stevens, Holger, Stevenson, Scott, Stoica, Sabin, Stone, Sheldon, Storaci, Barbara, Stracka, Simone, Stramaglia, Maria Elena, 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, Zhelezov, Alexey, Zheng, Yangheng, Zhu, Xianglei, Zhukov, Valery, Zucchelli, Stefano
Lenguaje:eng
Publicado: 2017
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.118.261803
http://cds.cern.ch/record/2253241
Descripción
Sumario:Asymmetries in the time-dependent rates of D0→K+K- and D0→π+π- decays are measured in a pp collision data sample collected with the LHCb detector during LHC Run 1, corresponding to an integrated luminosity of 3  fb-1. The asymmetries in effective decay widths between D0 and D¯0 decays, sensitive to indirect CP violation, are measured to be AΓ(K+K-)=(-0.30±0.32±0.10)×10-3 and AΓ(π+π-)=(0.46±0.58±0.12)×10-3, where the first uncertainty is statistical and the second systematic. These measurements show no evidence for CP violation and improve on the precision of the previous best measurements by nearly a factor of two.