Observation of the decay B0s→¯D0K+K−
Roel Aaij,Gregory Ciezarek,P. Collins,Stefan Roiser,Wenbin Qian,Achim Vollhardt,Barbara Storaci,Alessio Piucci,Daniel Patrick O'Hanlon,Marcel Merk,Stefania Ricciardi,Christopher Jones,Domenico Galli,Marie-Noelle Minard,Daniel Berninghoff,Pavel Krokovny,Gianfranco Morello,M. Corvo,Ivan Polyakov,Alessandro Camboni,Pei-Rong Li,Florian Lemaitre,Guillaume Pietrzyk,Leonid Kravchuk,Julian Wishahi,Mikkel Bjørn,Menglin Xu,Max Neuner,Veronika Chobanova,Thomas Kirn,Melody Ravonel Salzgeber,Matteo Palutan,Niels Tuning,Adam Dendek,Andrea Mogini,Sebastian Bachmann,Zhenzi Wang,David Gascon,Timothy Evans,Matthew Kelsey,Da Yu Tou,Neville Harnew,Olga Morgunova,Stephan Escher,Daniel Hynds,Tatsiana Klimkovich,Marcin Chrzaszcz,Guido Haefeli,Sheldon Stone,Gerard Fernandez,Hannah Mary Evans,Sergey Barsuk,Florin Maciuc,Tomasz Szumlak,Edwige Tournefier,Davide Pinci,Miriam Lucio Martinez,Angelo Di Canto,Alexandra Paige Rollings,Jeremy Dalseno,Olivier Göran Girard,Roland Waldi,Nikolay Nikitin,Michele Atzeni,Oliver Grünberg,Daniel Vieira,Stephen M. Stahl,Arseniy Vitkovskiy,Sebastian Neubert,Viktoriia Chekalina,Eluned Smith,Margarete Schellenberg,Anna Danilina,Jascha Peter Grabowski,Matthew Needham,Eduardo Enrique Sepulveda,Burkhard Schmidt,Konstantin Gizdov,Christoph Hasse,Ivan Belyaev,Aleksandr Petrov,Iwan Thomas Smith,Monica Pepe Altarelli,Oleg Stenyakin,Sergey Strokov,Stephen Wotton,Lars Eklund,Luis Miguel Garcia Martin,Daniele Marangotto,A. Gomes,Matthew Kenzie,Holger Stevens,Denis Derkach,Malte Hecker,Angelo Carbone,Olivier Deschamps,David Chamont,Martinus van Beuzekom,Andrea Merli,Massimiliano Fiorini,P. Spradlin,Michael Brodski,Liupan An,Vanessa Müller,Konstantin Belous,Alex Pearce,Rudolf Oldeman,Michal Dziewiecki,F. Blanc,Sarah Karodia,Sai-Juan Chen,Zan Ren,Florian Reiss,Juan Jose Saborido Silva,Michael Sokoloff,Josue Molina Rodriguez,Wen Chao Zhang,Federica Lionetto,Marco Petruzzo,Luiz Gustavo Silva de Oliveira,Nicola Serra,Maxime Vernet,Jaap Velthuis,Marcelo Soares,Giulia Tellarini,Vladimir Gligorov,T. A. 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Physical Review D(2018)
Cited 0|Views17
Abstract
The first observation of the B-s(0) -> (D) over bar K-0 (+) K- decay is reported, together with the most precise branching fraction measurement of the mode B-0 -> (D) over bar K-0 (+) K- The results are obtained from an analysis of pp collision data corresponding to an integrated luminosity of 3.0 fb(-1). The data were collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV, The branching fraction of the B-0 -> (D) over bar K-0 (+) K- decay is measured relative to that of the decay B-0 -> (D) over bar (0)pi (+) pi(-) to be B(B-0 -> (D) over bar K-0 (+) K-)/B(B-0 -> (D) over bar (0)pi (+) pi(-)) =(69 +/- 0.4 +/- 0.3)%, where the first uncertainty is statistical and the second is systematic. The measured branching fraction of the B-s(0) -> (D) over bar K-0 (+) K- decay mode relative to that of the corresponding B-0 decay is B(B-0 -> (D) over bar K-0 (+) K-)/B(B-0 -> (D) over bar K-0 (+) K-) = (93.0 +/- 809 +/- 6.9)%. Using the known branching fraction of B-0 -> (D) over bar (0)pi (+) pi(-), the values of B-0 -> (D) over bar K-0 (+) K- = (6.1 +/- 0.4 +/- 0.3 +/- 0.3) x 10(-5) and B(B-s(0) -> (D) over bar K-0 (+) K- = (5.7 +/- 0.5 +/- 0.4 +/- 0.5) x 10(-5) are obtained, where the third uncertainties arise from the branching fraction of the decay modes B-0 -> (D) over bar (0)pi (+) pi(-) and B-0 -> (D) over bar K-0 (+) K-, respectively.
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