Observation of the annihilation decay mode $B^{0}\to K^{+}K^{-}$

Bernardo Adeva, Marco Adinolfi, Ziad Ajaltouni, Simon Akar, Johannes Albrecht, Federico Alessio, Michael Alexander, Suvayu Ali, Georgy Alkhazov, Paula Alvarez Cartelle, Antonio Au Alves Jr, Sandra Amato, Silvia Amerio, Yasmine Amhis, Liupan An, Lucio Anderlini, Guido Andreassi, Mirco Andreotti, Jason Andrews, Robert ApplebyFlavio Archilli, Philippe d'Argent, Joan Arnau Romeu, Alexander Artamonov, Marina Artuso, Elie Aslanides, Giulio Auriemma, Marouen Baalouch, Igor Babuschkin, Sebastian Bachmann, John Back, Alexey Badalov, Clarissa Baesso, Sophie Baker, Wander Baldini, Roger Barlow, Colin Barschel, Sergey Barsuk, William Barter, Mateusz Baszczyk, Varvara Batozskaya, Baasansure Batsukh, Vincenzo Battista, Aurelio Bay, Leo Beaucourt, John Beddow, Franco Bedeschi, Ignacio Bediaga, Lennaert Bel, Violaine Bellee, Nicoletta Belloli, Konstantin Belous, Ivan Belyaev, Eli Ben-Haim, Giovanni Bencivenni, Sean Benson, Jack Benton, Alexander Berezhnoy, Roland Bernet, Alessandro Bertolin, Federico Betti, Marc-Olivi Bettler, Martinus van Beuzekom, Iaroslava Bezshyiko, Simone Bifani, Pierre Billoir, Thomas Bird, Alex Birnkraut, Alexander Bitadze, Andrea Bizzeti, Thomas Blake, Frederic Blanc, Johan Blouw, Steven Blusk, Valerio Bocci, Thomas Boettcher, Alexander Bondar, Nikolay Bondar, Walter Bonivento, Alessio Borgheresi, Silvia Borghi, Maxim Borisyak, Martino Borsato, Francesco Bossu, Meriem Boubdir, Themistocl Bowcock, Espen Eie Bowen, Concezio Bozzi, Svende Braun, Markward Britsch, Thomas Britton, Jolanta Brodzicka, Emma Buchanan, Christophe Burr, Albert Bursche, Jan Buytaert, Sandro Cadeddu, Roberto Calabrese, Marta Calvi, Miriam Calvo Gomez, Alessandro Camboni, Pierluigi Campana, Daniel Campora Perez, Daniel Hug Campora Perez, Lorenzo Capriotti, Angelo Carbone, Giovanni Carboni, Roberta Cardinale, Alessandro Cardini, Paolo Carniti, Laurence Carson, Kazuyoshi Carvalho Akiba, Gianluigi Casse, Lorenzo Cassina, Lucia Castillo Garcia, Marco Cattaneo, Christophe Cauet, Giovanni Cavallero, Riccardo Cenci, Matthew Charles, Philippe Charpentier, Georgios Chatzikonstantinidis, Maximilien Chefdeville, Shanzhen Chen, Shu-Faye Cheung, Veronika Chobanova, Marcin Chrzaszcz, Xabier Cid Vidal, Gregory Ciezarek, Peter Clarke, Marco Clemencic, Harry Cliff, Joel Closier, Victor Coco, Julien Cogan, Eric Cogneras, Violetta Cogoni, Lucian Cojocariu, Gianmaria Collazuol, Paula Collins, Albert Comerma-Montells, Andrea Contu, Andrew Cook, George Coombs, Samuel Coquereau, Gloria Corti, Marco Corvo, Cayo Mar Costa Sobral, Benjamin Couturier, Greig Cowan, Daniel Cha Craik, Andrew Crocombe, Melissa Ma Cruz Torres, Samuel Cunliffe, Robert Currie, Carmelo D'Ambrosio, Franciole Da Cunha Marinho, Elena Dall'Occo, Jeremy Dalseno, Pieter David, Adam Davis, Oscar De Aguiar Francisco, Kristof De Bruyn, Stefano De Capua, Michel De Cian, Jussara De Miranda, Leandro De Paula, Marilisa De Serio, Patrizia De Simone, Cameron Th Dean, Daniel Decamp, Mirko Deckenhoff, Luigi Del Buono, Moritz Demmer, Denis Derkach, Olivier Deschamps, Francesco Dettori, Biplab Dey, Angelo Di Canto, Hans Dijkstra, Francesca Dordei, Mirco Dorigo, Alvaro Dosil Suárez, Anatoliy Dovbnya, Karlis Dreimanis, Laurent Dufour, Giulio Dujany, Kevin Dungs, Paolo Durante, Rustem Dzhelyadin, Agnieszka Dziurda, Alexey Dzyuba, Nicolas Déléage, Sajan Easo, Marcus Ebert, Ulrik Egede, Victor Egorychev, Semen Eidelman, Stephan Eisenhardt, Ulrich Eitschberger, Robert Ekelhof, Lars Eklund, Christian Elsasser, Scott Ely, Sevda Esen, Hannah Mar Evans, Timothy Evans, Antonio Falabella, Nathanael Farley, Stephen Farry, Robert Fay, Davide Fazzini, Dianne Ferguson, Victor Fernandez Albor, Antonio Fernandez Prieto, Fabio Ferrari, Fernando Ferreira Rodrigues, Massimilia Ferro-Luzzi, Sergey Filippov, Rosa Anna Fini, Marco Fiore, Massimilia Fiorini, Miroslaw Firlej, Conor Fitzpatrick, Tomasz Fiutowski, Frederic Fleuret, Klaus Fohl, Marianna Fontana, Flavio Fontanelli, Dean Charl Forshaw, Roger Forty, Vinicius Franco Lima, Markus Frank, Christoph Frei, Jinlin Fu, Emiliano Furfaro, Christian Färber, Abraham Gallas Torreira, Domenico Galli, Stefano Gallorini, Silvia Gambetta, Miriam Gandelman, Paolo Gandini, Yuanning Gao, Luis Migue Garcia Martin, Julián García Pardiñas, Jordi Garra Tico, Lluis Garrido, Philip Joh Garsed, David Gascon, Clara Gaspar, Laura Gavardi, Giulio Gazzoni, David Gerick, Evelina Gersabeck, Marco Gersabeck, Timothy Gershon, Philippe Ghez, Sebastiana Gianì, Valerie Gibson, Olivier G Girard, Lavinia-He Giubega, Konstantin Gizdov, V V Gligorov, Dmitry Golubkov, Andrey Golutvin, Alvaro Gomes, Igor Vladi Gorelov, Claudio Gotti, Marc Grabalosa Gándara, Ricardo Graciani Diaz, Luis Alber Granado Cardoso, Eugeni Graugés, Elena Graverini, Giacomo Graziani, Alexandru Grecu, Peter Griffith, Lucia Grillo, Barak Raim Gruberg Cazon, Oliver Grünberg, Evgeny Gushchin, Yury Guz, Thierry Gys, Carla Göbel, Thomas Hadavizadeh, Christos Hadjivasiliou, Guido Haefeli, Christophe Haen, Susan Haines, Samuel Hall, Brian Hamilton, Xiaoxue Han, Stephanie Hansmann-Menzemer, Neville Harnew, Samuel Harnew, Jonathan Harrison, Mark Hatch, Jibo He, Timothy Head, Arno Heister, Karol Hennessy, Pierre Henrard, Louis Henry, Jose Angel Hernando Morata, Eric van Herwijnen, Miriam Heß, Adlène Hicheur, Donal Hill, Christoph Hombach, P H Hopchev, Wouter Hulsbergen, Thibaud Humair, Mikhail Hushchyn, Nazim Hussain, David Hutchcroft, Marek Idzik, Philip Ilten, Richard Jacobsson, Andreas Jaeger, Pawel Jalocha, Eddy Jans, Abolhassan Jawahery, Feng Jiang, Malcolm John, Daniel Johnson, Christophe Jones, Christian Joram, Beat Jost, Nathan Jurik, Sergii Kandybei, Walaa Kanso, Matthias Karacson, James Mwan Kariuki, Sarah Karodia, Matthieu Kecke, Matthew Kelsey, Ian Kenyon, Matthew Kenzie, Tjeerd Ketel, Egor Khairullin, Basem Khanji, Chitsanu Khurewathanakul, Thomas Kirn, Suzanne Klaver, Konrad Klimaszewski, Serhii Koliiev, Michael Kolpin, Ilya Komarov, Rose Koopman, Patrick Koppenburg, Alena Kosmyntseva, Anastasiia Kozachuk, Mohamad Kozeiha, Leonid Kravchuk, Katharina Kreplin, Michal Kreps, Pavel Krokovny, Florian Kruse, Wojciech Krzemien, Wojciech Kucewicz, Marcin Kucharczyk, Vasily Kudryavtsev, Axel Kevin Kuonen, Krzysztof Kurek, Tengiz Kvaratskheliya, Daniel Lacarrere, George Lafferty, Adriano Lai, Dean Lambert, Gaia Lanfranchi, Christoph Langenbruch, Thomas Latham, Cristina Lazzeroni, Renaud Le Gac, Jeroen van Leerdam, Jean-Pierr Lees, Alexander Leflat, Jacques Lefrançois, Regis Lefèvre, Florian Lemaitre, Edgar Lemos Cid, Olivier Leroy, Tadeusz Lesiak, Blake Leverington, Yiming Li, Tatiana Likhomanenko, Rolf Lindner, Christian Linn, Federica Lionetto, Bo Liu, Xuesong Liu, David Loh, Iain Longstaff, Jose Lopes, Donatella Lucchesi, Miriam Lucio Martinez, Haofei Luo, Anna Lupato, Eleonora Luppi, Oliver Lupton, Alberto Lusiani, Xiao-Rui Lyu, Frederic Machefert, Florin Maciuc, Oleg Maev, Kevin Maguire, Sneha Malde, Alexander Malinin, Timofei Maltsev, Giulia Manca, Giampiero Mancinelli, Peter Mich Manning, Jan Maratas, Jean F Marchand, Umberto Marconi, Carla Marin Benito, Pietro Marino, Jörg Marks, Giuseppe Martellotti, Morgan Martin, Maurizio Martinelli, Diego Martinez Santos, Fernando Martinez Vidal, Danielle Martins Tostes, Laure Mari Massacrier, André Massafferri, Rosen Matev, Abhijit Mathad, Zoltan Mathe, Clara Matteuzzi, Andrea Mauri, Brice Maurin, Alexander Mazurov, Michael McCann, James McCarthy, Andrew McNab, Ronan McNulty, Brian Meadows, Frank Meier, Marco Meissner, Dmytro Melnychuk, Marcel Merk, Andrea Merli, Emanuele Michielin, Diego Alej Milanes, Marie-Noel Minard, Dominik St Mitzel, Andrea Mogini, Josue Molina Rodriguez, Ignacio Al Monroy, Stephane Monteil, Mauro Morandin, Piotr Morawski, Alessandro Mordà, Michael Jo Morello, Jakub Moron, Adam Benja Morris, Raymond Mountain, Franz Muheim, Mick Mulder, Manuel Mussini, Dominik Müller, Janine Müller, Katharina Müller, Vanessa Müller, Paras Naik, Tatsuya Nakada, Raja Nandakumar, Anita Nandi, Irina Nasteva, Matthew Needham, Nicola Neri, Sebastian Neubert, Niko Neufeld, Max Neuner, Anh Duc Nguyen, Chung Nguyen-Mau, Simon Nieswand, Ramon Niet, Nikolay Nikitin, Thomas Nikodem, Alexey Novoselov, Daniel Pat O'Hanlon, Agnieszka Oblakowska-Mucha, Vladimir Obraztsov, Stephen Ogilvy, Rudolf Oldeman, Gerco Onderwater, Juan Marti Otalora Goicochea, Adam Otto, Patrick Owen, Maria Aran Oyanguren, Preema Ren Pais, Antimo Palano, Fernando Palombo, Matteo Palutan, Jacob Panman, Antonios Papanestis, Marco Pappagallo, Luciano Pappalardo, William Parker, Christophe Parkes, Giovanni Passaleva, Alessandra Pastore, Girish Patel, Mitesh Patel, Claudia Patrignani, Alex Pearce, Antonio Pellegrino, Gianni Penso, Monica Pepe Altarelli, Stefano Perazzini, Pascal Perret, Luca Pescatore, Konstantin Petridis, Alessandro Petrolini, Aleksandr Petrov, Marco Petruzzo, Eduardo Picatoste Olloqui, Boleslaw Pietrzyk, Malgorzata Pikies, Davide Pinci, Alessandro Pistone, Alessio Piucci, Stephen Playfer, Maximo Plo Casasus, Tuomas Poikela, Francesco Polci, Anton Poluektov, Ivan Polyakov, Erica Polycarpo, Gabriela J Pomery, Alexander Popov, Dmitry Popov, Bogdan Popovici, Stanislav Poslavskii, Cédric Potterat, Eugenia Price, Joseph Dav Price, Jessica Prisciandaro, Adrian Pritchard, Claire Prouve, Valery Pugatch, Albert Puig Navarro, Giovanni Punzi, Wenbin Qian, Renato Quagliani, Bartolomie Rachwal, Jonas Rademacker, Matteo Rama, Miguel Ramos Pernas, Murilo Rangel, Iurii Raniuk, Gerhard Raven, Federico Redi, Stefanie Reichert, Alberto dos Reis, Clara Remon Alepuz, Victor Renaudin, Stefania Ricciardi, Sophie Richards, Mariana Rihl, Kurt Rinnert, Vicente Rives Molina, Patrick Robbe, Ana Barbar Rodrigues, Eduardo Rodrigues, Jairo Alex Rodriguez Lopez, Pablo Rodriguez Perez, Alexey Rogozhnikov, Stefan Roiser, Alexandra Rollings, Vladimir Romanovskiy, Antonio Romero Vidal, John Willi Ronayne, Marcello Rotondo, Matthew Sc Rudolph, Thomas Ruf, Pablo Ruiz Valls, Juan Jose Saborido Silva, Elnur Sadykhov, Naylya Sagidova, Biagio Saitta, Valdir Salustino Guimaraes, Carlos Sanchez Mayordomo, Brais Sanmartin Sedes, Roberta Santacesaria, Cibran Santamarina Rios, Marco Santimaria, Emanuele Santovetti, Alessio Sarti, Celestina Satriano, Alessia Satta, Daniel Mar Saunders, Darya Savrina, Stefan Schael, Margarete Schellenberg, Manuel Schiller, Heinrich Schindler, Maximilian Schlupp, Michael Schmelling, Timon Schmelzer, Burkhard Schmidt, Olivier Schneider, Andreas Schopper, Konstantin Schubert, Maxime Schubiger, Marie Hele Schune, Rainer Schwemmer, Barbara Sciascia, Adalberto Sciubba, Alexander Semennikov, Antonino Sergi, Nicola Serra, Justine Serrano, Lorenzo Sestini, Paul Seyfert, Mikhail Shapkin, Illya Shapoval, Yury Shcheglov, Tara Shears, Lev Shekhtman, Vladimir Shevchenko, Alexander Shires, Benedetto Siddi, Rafael Silva Coutinho, Luiz Gusta Silva de Oliveira, Gabriele Simi, Saverio Simone, Marek Sirendi, Nicola Skidmore, Tomasz Skwarnicki, Eluned Smith, Iwan Thoma Smith, Jackson Smith, Mark Smith, Hella Snoek, Michael Sokoloff, Paul Soler, Bruno Souza De Paula, Bernhard Spaan, Patrick Spradlin, Srikanth Sridharan, Federico Stagni, Marian Stahl, Sascha Stahl, Pavol Stefko, Slavorima Stefkova, Olaf Steinkamp, Simon Stemmle, Oleg Stenyakin, Scott Stevenson, Sabin Stoica, Sheldon Stone, Barbara Storaci, Simone Stracka, Mihai Straticiuc, Ulrich Straumann, Liang Sun, William Sutcliffe, Krzysztof Swientek, Vasileios Syropoulos, Marek Szczekowski, Tomasz Szumlak, Stephane T'Jampens, Andrey Tayduganov, Tobias Tekampe, Giulia Tellarini, Frederic Teubert, Eric Thomas, Jeroen van Tilburg, Matthew Ja Tilley, Vincent Tisserand, Mark Tobin, Siim Tolk, Luca Tomassetti, Diego Tonelli, Stig Topp-Joergensen, Francis Toriello, Edwige Tournefier, Stephane Tourneur, Karim Trabelsi, Murdo Traill, Minh Tâm Tran, Marco Tresch, Ana Trisovic, Andrei Tsaregorodtsev, Panagiotis Tsopelas, Alison Tully, Niels Tuning, Artur Ukleja, Andrey Ustyuzhanin, Ulrich Uwer, Claudia Vacca, Vincenzo Vagnoni, Andrea Valassi, Sebastien Valat, Giovanni Valenti, Alexis Vallier, Ricardo Vazquez Gomez, Pablo Vazquez Regueiro, Stefania Vecchi, Maarten van Veghel, Jaap Velthuis, Michele Veltri, Giovanni Veneziano, Aravindhan Venkateswaran, Maxime Vernet, Mika Vesterinen, Benoit Viaud, Daniel Vieira, Maria Vieites Diaz, Xavier Vilasis-Cardona, Vladimir Volkov, Achim Vollhardt, Balazs Voneki, Alexey Vorobyev, Vitaly Vorobyev, Christian Voß, Jacco de Vries, Carlos Vázquez Sierra, Roland Waldi, Charlotte Wallace, Ronan Wallace, John Walsh, Jianchun Wang, David Ward, Heather Mc Wark, Nigel Watson, David Websdale, Andreas Weiden, Mark Whitehead, Jean Wicht, Guy Wilkinson, Michael Wilkinson, Mark Richa Williams, Matthew Williams, Mike Williams, Timothy Williams, Fergus Wilson, Jack Wimberley, Julian Wishahi, Wojciech Wislicki, Mariusz Witek, Guy Wormser, Stephen Wotton, Kenneth Wraight, Simon Wright, Kenneth Wyllie, Yuehong Xie, Zhou Xing, Zhirui Xu, Zhenwei Yang, Hang Yin, Jiesheng Yu, Xuhao Yuan, Oleg Yushchenko, Kristian A Zarebski, Mikhail Zavertyaev, Liming Zhang, Yanxi Zhang, Yu Zhang, Alexey Zhelezov, Yangheng Zheng, Anatoly Zhokhov, Xianglei Zhu, Valery Zhukov, Stefano Zucchelli

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

A search for the $B^{0}\to K^{+}K^{-}$ decay is performed using $pp$-collision data collected by LHCb. The data set corresponds to integrated luminosities of 1 and 2 fb$^{-1}$ at center-of-mass energies of 7 and 8 TeV, respectively. This decay is observed for the first time, with a significance of more than five standard deviations. The analysis also results in an improved measurement of the branching fraction for the $B_s^0\to \pi^+\pi^-$ decay. The measured branching fractions are $BR(B^0\to K^+K^-) = (7.80 \pm 1.27 \pm 0.81 \pm 0.21) \times 10^{-8}$ and $BR(B_s^0\to\pi^+\pi^-) = (6.91 \pm 0.54 \pm 0.63 \pm 0.19 \pm 0.40) \times 10^{-7}$. The first uncertainty is statistical, the second is systematic, the third is due to the uncertainty on the $B^0\to K^+\pi^-$ branching fraction used as a normalization. For the $B_s^0$ mode, the fourth accounts for the uncertainty on the ratio of the probabilities for $b$ quarks to hadronize into $B_s^0$ and $B^0$ mesons.
Original languageEnglish
Article numberAaij:2016elb
Pages (from-to)081801
JournalPhysical Review Letters
Volume118
Issue number8
DOIs
Publication statusPublished - 21 Feb 2017

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