Search for direct production of electroweakinos in final states with one lepton, missing transverse momentum and a Higgs boson decaying into two b-jets in pp collisions at √s=13 TeV with the ATLAS detector

0535000 - FZÚ 2021 RIV US eng J - Journal Article
Aad, G. - Abbott, B. - Abbott, D.C. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jačka, Petr - Jakoubek, Tomáš - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … Total 2961 authors
Search for direct production of electroweakinos in final states with one lepton, missing transverse momentum and a Higgs boson decaying into two b-jets in pp collisions at √s=13 TeV with the ATLAS detector.
European Physical Journal C. Roč. 80, č. 8 (2020), s. 1-29, č. článku 691. ISSN 1434-6044. E-ISSN 1434-6052
R&D Projects: GA MŠMT(CZ) LTT17018
Research Infrastructure: CERN-CZ II - 90104
Institutional support: RVO:68378271
Keywords : ATLAS * CERN * LHC * Higgs * BSM * EFT * CP-violation
OECD category: Particles and field physics
Impact factor: 4.590, year: 2020
Method of publishing: Open access

The results of a search for electroweakino pair production pp ightarrow ilde{chi }^pm _1 ilde{chi }^0_2pp→ χ ~ 1 ± χ ~ 2 0 in which the chargino ( ilde{chi }^pm _1 χ ~ 1 ± ) decays into a W boson and the lightest neutralino ( ilde{chi }^0_1 χ ~ ​1 0 ), while the heavier neutralino ( ilde{chi }^0_2 χ ~ 2 0 ) decays into the Standard Model 125 GeV Higgs boson and a second ilde{chi }^0_1 χ ~1 0 are presented. The signal selection requires a pair of b-tagged jets consistent with those from a Higgs boson decay, and either an electron or a muon from the W boson decay, together with missing transverse momentum from the corresponding neutrino and the stable neutralinos. The analysis is based on data corresponding to 139 mathrm {fb}^{-1}fb −1 of sqrt{s}=13 s=13 TeV pp collisions provided by the Large Hadron Collider and recorded by the ATLAS detector.
Permanent Link: http://hdl.handle.net/11104/0313128