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Study of B0s → J/ψπ+π −K+K− decays

The decays $$ {\mathrm{B}}_{\mathrm{s}}^0 $$→ J/ψπ+π−K+K− are studied using a data set corresponding to an integrated luminosity of 9 fb−1, collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV. The decays $$ {\mathrm{B}}_{\mathrm{s}}^0 $$→ $$ \ma...

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Main Authors: Aaij, Roel (Author) , Archilli, Flavio (Author) , Bachmann, Sebastian (Author) , Berninghoff, Daniel (Author) , Borsato, Martino (Author) , Dziewiecki, Michal (Author) , Frau, Giulia (Author) , Gerick, David (Author) , Grabowski, Jascha (Author) , Günther, Paul André (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Hu, Jiangqiao (Author) , Kopecná, Renata (Author) , Leverington, Blake (Author) , Li, Peilian (Author) , Malygina, Hanna (Author) , Marks, Jörg (Author) , Piucci, Alessio (Author) , Schmelling, Michael (Author) , Stemmle, Simon (Author) , Unverzagt, Daniel Joachim (Author) , Uwer, Ulrich (Author) , Wang, Chishuai (Author) , Witola, Lukas (Author) , Zhelezov, Alexey (Author) , Meinert, Nis (Author) , Viemann, Harald (Author) , Waldi, Roland (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 02 February 2021
In: Journal of high energy physics
Year: 2021, Issue: 2, Pages: 1-33
ISSN:1029-8479
DOI:10.1007/JHEP02(2021)024
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP02(2021)024
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Author Notes:the LHCb collaboration
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Summary:The decays $$ {\mathrm{B}}_{\mathrm{s}}^0 $$→ J/ψπ+π−K+K− are studied using a data set corresponding to an integrated luminosity of 9 fb−1, collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV. The decays $$ {\mathrm{B}}_{\mathrm{s}}^0 $$→ $$ \mathrm{J}/{\uppsi \mathrm{K}}^{\ast 0}{\overline{\mathrm{K}}}^{\ast 0} $$and $$ {\mathrm{B}}_{\mathrm{s}}^0 $$→ χc1(3872)K+K−, where the K+K−pair does not originate from a ϕ meson, are observed for the first time. Precise measurements of the ratios of branching fractions between intermediate χc1(3872)ϕ, $$ \mathrm{J}/{\uppsi \mathrm{K}}^{\ast 0}{\overline{\mathrm{K}}}^{\ast 0} $$, ψ(2S)ϕ and χc1(3872)K+K− states are reported. A structure, denoted as X(4740), is observed in the J/ψϕ mass spectrum and, assuming a Breit-Wigner parameterisation, its mass and width are determined to be
Item Description:Gesehen am 25.06.2021
The LHCb collaboration: R. Aaij, F. Archilli, S. Bachmann, D. Berninghoff, M. Borsato, M. Dziewiecki, G. Frau, D, Gerick, J. Grabowski, P.A. Günther, X. Han, S. Hansmann-Menzemer, J. Hu, R. Kopecná, B. Leverington, P. Li, H. Malygina, J. Marks, A. Piucci, M. Schmelling, S. Stemmle, D.J. Unverzagt. U. Uwer, C. Wang, L. Witola, A. Zhelezov,..., N. Meinert,..., H. Viemann,..., R. Waldi [und viele weitere]
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Physical Description:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP02(2021)024

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