TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Jashal, B. K.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Vidal, J.
PY  - 2022
DA  - 2022//
TI  - Search for massive long-lived particles decaying semileptonically at root s=13 TeV
T2  - Eur. Phys. J. C
JO  - European Physical Journal C
SP  - 373 - 19pp
VL  - 82
IS  - 4
PB  - Springer
AB  - A search is performed for massive long-lived particles (LLPs) decaying semileptonically into a muon and two quarks. Two kinds of LLP production processes were considered. In the first, a Higgs-like boson with mass from 30 to 200 GeV/c(2) is produced by gluon fusion and decays into two LLPs. The analysis covers LLP mass values from 10 GeV/c(2) up to about one half the Higgs-like boson mass. The second LLP production mode is directly from quark interactions, with LLP masses from 10 to 90 GeV/c(2). The LLP lifetimes considered range from 5 to 200 ps. This study uses LHCb data collected from proton-proton collisions at root s = 13 TeV, corresponding to an integrated luminosity of 5.4 fb(-1). No evidence of these long-lived states has been observed, and upper limits on the production cross-section times branching ratio have been set for each model considered.
SN  - 1434-6044
UR  - https://arxiv.org/abs/2110.07293
UR  - https://doi.org/10.1140/epjc/s10052-022-10186-3
DO  - 10.1140/epjc/s10052-022-10186-3
LA  - English
N1  - WOS:000788631800002
ID  - LHCbCollaborationAaij_etal2022
ER  -