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.

Lhcb, C., Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., et al. (2023). Search for the rare decays W+ -> Ds+ γ and Z -> D0 γ at LHCb. CHINESE PHYSICS C, 47(9) [10.1088/1674-1137/aceae9].

Search for the rare decays W+ -> Ds+ γ and Z -> D0 γ at LHCb

Borsato M.;Calvi M.;Capelli S.;Carniti P.;Fazzini D.;Garcia Pardinas J.;Gotti C.;Kirsebom V. S.;Martinazzoli L.;Martinelli M.;Meloni S.;Minotti A.;Petruzzo M.;Pizzichemi M.;Salomoni M.;Shields E. B.;
2023

Abstract

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.
Articolo in rivista - Articolo scientifico
rare decay; upper limit of branching fraction; W/Z boson;
English
2023
47
9
093002
open
Lhcb, C., Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., et al. (2023). Search for the rare decays W+ -> Ds+ γ and Z -> D0 γ at LHCb. CHINESE PHYSICS C, 47(9) [10.1088/1674-1137/aceae9].
File in questo prodotto:
File Dimensione Formato  
10281-455455_VoR.pdf

accesso aperto

Tipologia di allegato: Publisher’s Version (Version of Record, VoR)
Licenza: Creative Commons
Dimensione 1.97 MB
Formato Adobe PDF
1.97 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/455455
Citazioni
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 0
Social impact