The first search for the rare radiative decay Xi(-)(b) -> Xi(-)gamma is performed using data collected by the LHCb experiment in proton-proton collisions at a center-of-mass energy of 13TeV, corresponding to an integrated luminosity of 5.4 fb(-1). The Xi(-)(b) -> Xi(-)-J/ psi channel is used as normalization. No Xi(-)(b) -> Xi(-)gamma signal is found and an upper limit of B(Xi(-)(b) -> Xi(-)gamma) < 1.3 x 10(-4) at 95% confidence level is obtained.
Aaij, R., Abdelmotteleb, A., Beteta, C.a., Ackernley, T., Adeva, B., Adinolfi, M., et al. (2022). Search for the radiative Xi(-)(b) -> Xi(-)gamma decay. JOURNAL OF HIGH ENERGY PHYSICS(1) [10.1007/JHEP01(2022)069].
Search for the radiative Xi(-)(b) -> Xi(-)gamma decay
Archilli, F.;Santovetti, E.Membro del Collaboration Group
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2022-01-01
Abstract
The first search for the rare radiative decay Xi(-)(b) -> Xi(-)gamma is performed using data collected by the LHCb experiment in proton-proton collisions at a center-of-mass energy of 13TeV, corresponding to an integrated luminosity of 5.4 fb(-1). The Xi(-)(b) -> Xi(-)-J/ psi channel is used as normalization. No Xi(-)(b) -> Xi(-)gamma signal is found and an upper limit of B(Xi(-)(b) -> Xi(-)gamma) < 1.3 x 10(-4) at 95% confidence level is obtained.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
