TY - JOUR AU - LHCb Collaboration (Aaij, R. et al AU - Jaimes Elles, S. J. AU - Jashal, B. K. AU - Martinez-Vidal, F. AU - Oyanguren, A. AU - Rebollo De Miguel, M. AU - Ruiz Vidal, J. AU - Sanderswood, I. PY - 2023 DA - 2023// TI - Measurement of the Λb0 → Λ(1520)μ+μ- Differential Branching Fraction T2 - Phys. Rev. Lett. JO - Physical Review Letters SP - 151801 - 12pp VL - 131 IS - 15 PB - Amer Physical Soc AB - The branching fraction of the rare decay Lambda(0 )(b)-> Lambda(1520)mu(+)mu(-) is measured for the first time, in the squared dimuon mass intervals q(2), excluding the J/psi and psi(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 q(2) interval, q(2) > 15.0 GeV2/c(4), where theoretical predictions have the smallest model dependence, agrees with the predictions. SN - 0031-9007 UR - https://arxiv.org/abs/2302.08262 UR - https://doi.org/10.1103/PhysRevLett.131.151801 DO - 10.1103/PhysRevLett.131.151801 LA - English N1 - WOS:001102939300004 ID - LHCbCollaborationAaij_etal2023 ER -