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Search for the rare hadronic decay B0s→p¯p

A search for the rare hadronic decay B0s→p¯p is performed using proton-proton collision data recorded by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb−1. No evidence of the decay is found and an upper limit on its branching fraction is se...

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Main Authors: Aaij, Roel (Author) , Archilli, Flavio (Author) , Bachmann, Sebastian (Author) , Berninghoff, Daniel (Author) , Borsato, Martino (Author) , Caspary, Rowina (Author) , Frau, Giulia (Author) , Grabowski, Jascha (Author) , Günther, Paul André (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Hu, Jiangqiao (Author) , Kopecná, Renata (Author) , Kubat, Jakub (Author) , Leverington, Blake (Author) , Li, Peilian (Author) , Marks, Jörg (Author) , Mikhasenko, Mikhail (Author) , Neubert, Sebastian (Author) , Padeken, Klaas Ole (Author) , Promberger, Laura (Author) , Sarpis, Mindaugas (Author) , Skuza, Raphael (Author) , Unverzagt, Daniel Joachim (Author) , Uwer, Ulrich (Author) , Waldi, Roland (Author) , Wang, Chishuai (Author) , Witola, Lukas (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 14 July 2023
In: Physical review
Year: 2023, Volume: 108, Issue: 1, Pages: 012007-1-012007-12
ISSN:2470-0029
DOI:10.1103/PhysRevD.108.012007
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevD.108.012007
Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.108.012007
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Author Notes:R. Aaij et al.* (LHCb Collaboration)
Description
Summary:A search for the rare hadronic decay B0s→p¯p is performed using proton-proton collision data recorded by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb−1. No evidence of the decay is found and an upper limit on its branching fraction is set at B(B0s→p¯p)<4.4(5.1)×10−9 at 90% (95%) confidence level; this is currently the world’s best upper limit. The decay mode B0→p¯p is measured with very large significance, confirming the first observation by the LHCb experiment in 2017. The branching fraction is determined to be B(B0→p¯p)=(1.27±0.15±0.05±0.04)×10−8, where the first uncertainty is statistical, the second is systematic and the third is due to the external branching fraction of the normalization channel B0→K+π−. The combination of the two LHCb measurements of the B0→p¯p branching fraction yields B(B0→p¯p)=(1.27±0.13±0.05±0.03)×10−8.
Item Description: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
*(LHCb Collaboration): R. Aaij, F. Archilli, S. Bachmann, D. Berninghoff, M. Borsato, R. Caspary, G. Frau, P.A. Günther, X. Han, S. Hansmann-Menzemer, J. Hu, B. Leverington, J. Marks, D.J. Unverzagt, U. Uwer, L. Witola, A. Zhelezov [und weitere 997 Personen]
Gesehen am 14.05.2024
Physical Description:Online Resource
ISSN:2470-0029
DOI:10.1103/PhysRevD.108.012007

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