The first search for the rare radiative decay Ξ−b → Ξ−γ is performed using data collected by the LHCb experiment in proton-proton collisions at a center-of-mass en- ergy of 13TeV, corresponding to an integrated luminosity of 5.4fb−1. The Ξ−b → Ξ−J/ψ channel is used as normalization. No Ξ−b → Ξ−γ signal is found and an upper limit of B(Ξ−b → Ξ−γ) < 1.3 × 10−4 at 95% confidence level is obtained.
Search for the radiative Xi(-)(b) -> Xi(-)gamma decay
Lusiani, A.;Morello, M. J.;Pica, L.;
2022
Abstract
The first search for the rare radiative decay Ξ−b → Ξ−γ is performed using data collected by the LHCb experiment in proton-proton collisions at a center-of-mass en- ergy of 13TeV, corresponding to an integrated luminosity of 5.4fb−1. The Ξ−b → Ξ−J/ψ channel is used as normalization. No Ξ−b → Ξ−γ signal is found and an upper limit of B(Ξ−b → Ξ−γ) < 1.3 × 10−4 at 95% confidence level is obtained.File in questo prodotto:
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