TY - JOUR
T1 - Measurement of the Λb0 → Λ (1520)μ+μ- Differential Branching Fraction
AU - LHCb Collaboration
AU - Bay, A.
AU - Becker, M.
AU - Boyer, A.
AU - Brown, J.
AU - Chadwick, A. J.
AU - Chen, S.
AU - De Bruyn, K.
AU - Mulder, Mick
AU - Onderwater, C. J. G.
N1 - Publisher Copyright:
© 2023 CERN.
PY - 2023/10/13
Y1 - 2023/10/13
N2 - The branching fraction of the rare decay Λb0→Λ(1520)μ+μ- is measured for the first time, in the squared dimuon mass intervals q2, excluding the J/ψ and ψ(2S) regions. The data sample analyzed was collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb-1. The result in the highest q2 interval, q2>15.0 GeV2/c4, where theoretical predictions have the smallest model dependence, agrees with the predictions.
AB - The branching fraction of the rare decay Λb0→Λ(1520)μ+μ- is measured for the first time, in the squared dimuon mass intervals q2, excluding the J/ψ and ψ(2S) regions. The data sample analyzed was collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb-1. The result in the highest q2 interval, q2>15.0 GeV2/c4, where theoretical predictions have the smallest model dependence, agrees with the predictions.
UR - http://www.scopus.com/inward/record.url?scp=85175272329&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.131.151801
DO - 10.1103/PhysRevLett.131.151801
M3 - Article
C2 - 37897753
AN - SCOPUS:85175272329
SN - 0031-9007
VL - 131
JO - Physical Review Letters
JF - Physical Review Letters
IS - 15
M1 - 151801
ER -