Branching fraction measurement of the decay 𝐡+ β†’πœ“β‘(2⁒𝑆)β’πœ™β‘(1020)⁒𝐾+

The branching fraction of the decay 𝐡+ β†’πœ“β‘(2⁒𝑆)β’πœ™β‘(1020)⁒𝐾+, relative to the topologically similar decay 𝐡+ →𝐽/πœ“β’πœ™β‘(1020)⁒𝐾+, is measured using proton-proton collision data collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9...

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Main Authors: Aaij, Roel (Author) , Bachmann, Sebastian (Author) , Carus, Leon (Author) , Caspary, Rowina (Author) , Celani, Sara (Author) , Cocha Toapaxi, Carlos (Author) , De Cian, Michel (Author) , Dittmann, Lucas (Author) , Esen, Sevda (Author) , Glaser, Fabian (Author) , Günther, Paul André (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Herrero Gascón, Paula (Author) , Langenbruch, Christoph (Author) , Leverington, Blake (Author) , Marks, Jörg (Author) , Morgenthaler, Maurice Pierre (Author) , Roy, Shreya (Author) , Ruiz Diaz, Miguel (Author) , Tuci, Giulia (Author) , Uecker, Lennart Henning (Author) , Unverzagt, Daniel Joachim (Author) , Uwer, Ulrich (Author) , Wang, Chishuai (Author) , Witola, Lukas (Author) , Zhao, Ya (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 13 May, 2025
In: Physical review
Year: 2025, Volume: 111, Issue: 9, Pages: 1-15
ISSN:2470-0029
DOI:10.1103/PhysRevD.111.092008
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevD.111.092008
Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.111.092008
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Author Notes:R. Aaij et al.* (LHCb Collaboration)
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Summary:The branching fraction of the decay 𝐡+ β†’πœ“β‘(2⁒𝑆)β’πœ™β‘(1020)⁒𝐾+, relative to the topologically similar decay 𝐡+ →𝐽/πœ“β’πœ™β‘(1020)⁒𝐾+, is measured using proton-proton collision data collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fbβˆ’1. The ratio is found to be 0.061 Β±0.004 Β±0.009, where the first uncertainty is statistical and the second systematic. Using the world-average branching fraction for 𝐡+ →𝐽/πœ“β’πœ™β‘(1020)⁒𝐾+, the branching fraction for the decay 𝐡+ β†’πœ“β‘(2⁒𝑆)β’πœ™β‘(1020)⁒𝐾+ is found to be (3.0 Β±0.2 Β±0.5 Β±0.2) Γ—10βˆ’6, where the first uncertainty is statistical, the second systematic, and the third is due to the branching fraction of the normalization channel.
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LHCb Collaboration: R. Aaij, S. Bachmann, L. Carus, R. Caspary, S. Celani, C. Cocha Toapaxi, M. De Cian, L. Dittmann, S. Esen, F.C. Glaser, P. A. Günther, X. Han, S. Hansmann-Menzemer, P. Herrero Gascon, C. Langenbruch, B. Leverington, J. Marks, M.P. Morgenthaler, S.R. Roy, M. Ruiz Diaz, G. Tuci, L.H. Uecker, D.J. Unverzagt, U. Uwer, C. Wang, L. Witola, Y. Zhao, A. Zhelezov [und viele weitere]
Gesehen am 03.12.2025
Physical Description:Online Resource
ISSN:2470-0029
DOI:10.1103/PhysRevD.111.092008