TY - JOUR
T1 - Search for massive long-lived particles decaying semileptonically at root s=13 TeV
AU - Aaij, R.
AU - Abdelmotteleb, A.S.W.
AU - Beteta, C.A.
AU - Gallego, F.J.A.
AU - Ackernley, T.
AU - Adeva, B.
AU - Adinolfi, M.
AU - Afsharnia, H.
AU - Agapopoulou, C.
AU - Aidala, C.A.
AU - Aiola, S.
AU - Ajaltouni, Z.
AU - Akar, S.
AU - Albrecht, J.
AU - Alessio, F.
AU - Alexander, M.
AU - Albero, A.A.
AU - Aliouche, Z.
AU - Alkhazov, G.
AU - Cartelle, P.A.
AU - Amato, S.
AU - Amey, J.L.
AU - Amhis, Y.
AU - An, L.
AU - Anderlini, L.
AU - Andreianov, A.
AU - Andreotti, M.
AU - Archilli, F.
AU - Artamonov, A.
AU - Artuso, M.
AU - Arzymatov, K.
AU - Aslanides, E.
AU - Atzeni, M.
AU - Audurier, B.
AU - Bachmann, S.
AU - Bachmayer, M.
AU - Back, J.J.
AU - Rodriguez, P.B.
AU - Balagura, V.
AU - Baldini, W.
AU - Leite, J.B.
AU - Barbetti, M.
AU - Barlow, R.J.
AU - Barsuk, S.
AU - Bartolini, M.
AU - Baryshnikov, F.
AU - Basels, J.M.
AU - LHCb collaboration
AU - Merk, M.
AU - Pawley, C.J.
AU - Vos, K.
AU - de Vries, J.A.
PY - 2022/4/28
Y1 - 2022/4/28
N2 - 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.
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.
KW - HIGGS
U2 - 10.1140/epjc/s10052-022-10186-3
DO - 10.1140/epjc/s10052-022-10186-3
M3 - Article
SN - 1434-6044
VL - 82
JO - European Physical Journal C
JF - European Physical Journal C
IS - 4
M1 - 373
ER -