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Search for the rare decays W+ → D+sγ and Z → D0γ at LHCb

A search for the rare decays and is performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13, corresponding to an integrated luminosity of 2.0. No significant signal is observed for either decay mode and upper limits on their branching fractions...

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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) , Gerick, David (Author) , Günther, Paul André (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Hu, Jiangqiao (Author) , Kopecná, Renata (Author) , Leverington, Blake (Author) , Li, Peilian (Author) , Marks, Jörg (Author) , Unverzagt, Daniel Joachim (Author) , Uwer, Ulrich (Author) , Witola, Lukas (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 7 August 2023
In: Chinese physics. C, High energy physics and nuclear physics
Year: 2023, Volume: 47, Issue: 9, Pages: 1-14
ISSN:2058-6132
DOI:10.1088/1674-1137/aceae9
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1088/1674-1137/aceae9
Verlag, kostenfrei, Volltext: https://dx.doi.org/10.1088/1674-1137/aceae9
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Author Notes:LHCb Collaboration*
Description
Summary:A search for the rare decays and is performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13, corresponding to an integrated luminosity of 2.0. No significant signal is observed for either decay mode and upper limits on their branching fractions are set using and decays as normalization channels. The upper limits are and at 95% confidence level for the and decay modes, respectively. This is the first reported search for the decay, while the upper limit on the branching fraction improves upon the previous best limit.
Item Description:Online veröffentlicht: 7. August 2023
*LHCb Collaboration: R. Aaij, F. Archilli, S. Bachmann, D. Berninghoff, M. Borsato, R. Caspary, G. Frau, D. Gerick, P.A. Günther, X. Han, S. Hansmann-Menzemer, J. Hu, R. Kopecna, B. Leverington, P. Li, J. Marks, D.J. Unverzagt, U. Uwer, C. Witola, A. Zhelezov (und 1051 weitere Personen)
Im Titel sind die Pluszeichen und die Zahl 0 hochgestellt sowie der Buchstabe "s" tiefgestellt
Gesehen am 22.05.2024
Physical Description:Online Resource
ISSN:2058-6132
DOI:10.1088/1674-1137/aceae9

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