TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Henry, L.
AU  - Jashal, B. K.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Vidal, J.
PY  - 2021
DA  - 2021//
TI  - Search for long-lived particles decaying to e(+/-)mu(-/+)nu
T2  - Eur. Phys. J. C
JO  - European Physical Journal C
SP  - 261 - 16pp
VL  - 81
IS  - 3
PB  - Springer
AB  - Long-lived particles decaying to e(+/-) mu(-/+)nu, with masses between 7 and 50 GeV/c(2) and lifetimes between 2 and 50 ps, are searched for by looking at displaced vertices containing electrons and muons of opposite charges. The search is performed using 5.4 fb(-1) of pp collisions collected with the LHCb detector at a centre-of-mass energy of root s = 13 TeV. Three mechanisms of production of long-lived particles are considered: the direct pair production from quark interactions, the pair production from the decay of a Standard-Model-like Higgs boson with a mass of 125 GeV/c(2), and the charged current production from an on-shell W boson with an additional lepton. No evidence of these long-lived states is obtained and upper limits on the production cross-section times branching fraction are set on the different production modes.
SN  - 1434-6044
UR  - https://arxiv.org/abs/2012.02696
UR  - https://doi.org/10.1140/epjc/s10052-021-08994-0
DO  - 10.1140/epjc/s10052-021-08994-0
LA  - English
N1  - WOS:000634800600002
ID  - LHCbCollaborationAaij_etal2021
ER  -