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Search for the radiative Ξ−b → Ξ−γ decay

Author(s)
Aaij, R.; Abdelmotteleb, A. S. W.; Abellán Beteta, C.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Aidala, C. A.; Aiola, S.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Alfonso Albero, A.; Aliouche, Z.; ... Show more Show less
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Abstract
Abstract The first search for the rare radiative decay Ξ b − $$ {\Xi}_b^{-} $$ → Ξ−γ is performed using data collected by the LHCb experiment in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb−1. The Ξ b − $$ {\Xi}_b^{-} $$ → Ξ−J/ψ channel is used as normalization. No Ξ b − $$ {\Xi}_b^{-} $$ → Ξ−γ signal is found and an upper limit of B $$ \mathcal{B} $$ ( Ξ b − $$ {\Xi}_b^{-} $$ → Ξ−γ) < 1.3 × 10−4 at 95% confidence level is obtained.
Date issued
2022-01-14
URI
https://hdl.handle.net/1721.1/139625
Department
Massachusetts Institute of Technology. Department of Physics
Publisher
Springer Berlin Heidelberg
Citation
Journal of High Energy Physics. 2022 Jan 14;2022(1):69
Version: Final published version

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