TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Garcia Martin, L. M.
AU  - Henry, L.
AU  - Jashal, B. K.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Vidal, J.
AU  - Sanchez Mayordomo, C.
PY  - 2020
DA  - 2020//
TI  - Search for the lepton flavour violating decay B+ -> K+mu(-)tau(+) using Bs20 decays
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 129
EP  - 19pp
VL  - 06
IS  - 6
PB  - Springer
KW  - B physics
KW  - Beyond Standard Model
KW  - Flavor physics
KW  - Hadron-Hadron scattering (experiments)
KW  - Rare decay
AB  - A search is presented for the lepton flavour violating decay B+ -> K+mu (-)tau (+) using a sample of proton-proton collisions at centre-of-mass energies of 7, 8, and 13 TeV, collected with the LHCb detector and corresponding to a total integrated luminosity of 9 fb(-1). The tau leptons are selected inclusively, primarily via decays with a single charged particle. The four-momentum of the tau lepton is determined by using B+ mesons from Bs20 -> B+K- decays. No significant excess is observed, and an upper limit is set on the branching fractionB(B+-> K+mu (-)tau (+))<3.9x10(-5)at90%confidence level.The obtained limit is comparable to the world-best limit.
SN  - 1029-8479
UR  - https://arxiv.org/abs/2003.04352
UR  - https://doi.org/10.1007/JHEP06(2020)129
DO  - 10.1007/JHEP06(2020)129
LA  - English
N1  - WOS:000545615700001
ID  - LHCbCollaborationAaij_etal2020
ER  -