Search for the radiative ΞbΞγ\Xi_b^-\to\Xi^-\gamma decay

Collaboration
Aug 17, 2021
20 pages
Published in:
  • JHEP 01 (2022) 069
  • Published: Jan 14, 2022
e-Print:
Report number:
  • LHCb-PAPER-2021-017,
  • CERN-EP-2021-128
Experiments:

Citations per year

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Abstract: (Springer)
The first search for the rare radiative decay Ξb {\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 fb1^{−1}. The Ξb {\Xi}_b^{-} → Ξ^{−}J/ψ channel is used as normalization. No Ξb {\Xi}_b^{-} → Ξ^{−}γ signal is found and an upper limit of B \mathcal{B} (Ξb {\Xi}_b^{-} → Ξ^{−}γ) < 1.3 × 104^{−4} at 95% confidence level is obtained.[graphic not available: see fulltext]
Note:
  • B physics
  • Flavor physics
  • Hadron-Hadron scattering (experiments)
  • Rare decay
  • p p: scattering
  • p p: colliding beams
  • Xi/b-: radiative decay
  • Xi
  • Xi/b-: branching ratio
  • branching ratio: upper limit