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Observation of charmless baryonic decays B0(s)→pp [bar]h+h'−

Decays of B0 and B0s mesons to the charmless baryonic final states p¯ph+h'−, where h and h′ each denote a kaon or a pion, are searched for using the LHCb detector. The analysis is based on a sample of proton-proton collision data collected at center-of-mass energies of 7 and 8 TeV, correspondin...

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Main Authors: Aaij, Roel (Author) , D'Argent, Philippe (Author) , Bachmann, Sebastian (Author) , Braun, Svende (Author) , Comerma-Montells, Albert (Author) , De Cian, Michel (Author) , Dziewiecki, Michal (Author) , Esen, Sevda (Author) , Gerick, David (Author) , Gersabeck, Evelina (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Kecke, Matthieu (Author) , Khanji, Basem (Author) , Kolpin, Michael (Author) , Kopecná, Renata (Author) , Leverington, Blake (Author) , Marks, Jörg (Author) , Mitzel, Dominik (Author) , Neubert, Sebastian (Author) , Neuner, Max (Author) , Nikodem, Thomas (Author) , Piucci, Alessio (Author) , Stahl, Marian (Author) , Stemmle, Simon (Author) , Uwer, Ulrich (Author) , Vesterinen, Mika (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 27 September 2017
In: Physical review
Year: 2017, Volume: 96, Issue: 5
ISSN:2470-0029
DOI:10.1103/PhysRevD.96.051103
Online Access:Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevD.96.051103
Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.96.051103
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Author Notes:R. Aaij et al.* (LHCb Collaboration)
Description
Summary:Decays of B0 and B0s mesons to the charmless baryonic final states p¯ph+h'−, where h and h′ each denote a kaon or a pion, are searched for using the LHCb detector. The analysis is based on a sample of proton-proton collision data collected at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb−1. Four-body charmless baryonic B0s decays are observed for the first time. The decays B0s→p¯pK+K−, B0s→p¯pK±π∓, B0→p¯pK±π∓ and B0→p¯pπ+π− are observed with a significance greater than 5 standard deviations; evidence at 4.1 standard deviations is found for the B0→p¯pK+K− decay and an upper limit is set on the branching fraction for B0s→p¯pπ+π−. Branching fractions in the kinematic region m(p¯p)<2850 MeV/c2 are measured relative to the B0→J/ψ(→p¯p)K∗(892)0 channel.
Item Description:The LHCb Collaboration: R. Aaij, P. d’Argent, S. Bachmann, S. Braun, M. Comerma-Montells, M. De Cian, M. Dziewiecki, S. Esen, D. Gerick, E. Gersabeck, X. Han, S. Hansmann-Menzemer, M. Kecke, B. Khanji, M. Kolpin, R. Kopecna, B. Leverington, J. Marks, D.S. Mitzel, S. Neubert, M. Neuner, T. Nikodem, A. Piucci, M. Stahl, S. Stemmle, U. Uwer, M. Vesterinen, A. Zhelezov [und weitere]
Im Titel sind "0" und "(s)" übereinander geschrieben, wobei "0" oben und "(s)" unten steht
Im Titel steht der zweite Buchstabe p mit einem Oberstrich und nach "h" ein Strich
Gesehen am 28.08.2018
Physical Description:Online Resource
ISSN:2470-0029
DOI:10.1103/PhysRevD.96.051103

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