Search for a light charged Higgs boson in t ? H±b decays, with H± ? cb, in the lepton plus jets final state in proton-proton collisions at ?s=13 TeV with the ATLAS detector
dc.WoS.categories | Physics, Particles & Fields | en_US |
dc.authorid | 0000-0001-5050-8441 | en_US |
dc.contributor.author | Çetin, Serkant Ali | |
dc.date.accessioned | 2024-04-26T07:03:19Z | |
dc.date.available | 2024-04-26T07:03:19Z | |
dc.date.issued | 2023-11-01 | |
dc.department | Fakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümü | en_US |
dc.description.abstract | A search for a charged Higgs boson, H-+/-, produced in top-quark decays, t -> H(+/-)b, is presented. The search targets H-+/- decays into a bottom and a charm quark, H-+/- -> cb. The analysis focuses on a selection enriched in top-quark pair production, where one top quark decays into a leptonically decaying W boson and a bottom quark, and the other top quark decays into a charged Higgs boson and a bottom quark. This topology leads to a lepton-plus-jets final state, characterised by an isolated electron or muon and at least four jets. The search exploits the high multiplicity of jets containing b-hadrons, and deploys a neural network classifier that uses the kinematic differences between the signal and the background. The search uses a dataset of proton-proton collisions collected at a centre-of-mass energy root s = 13TeV between 2015 and 2018 with the ATLAS detector at CERN's Large Hadron Collider, amounting to an integrated luminosity of 139 fb(-1). Observed (expected) 95% confidence-level upper limits between 0.15% (0.09%) and 0.42% (0.25%) are derived for the product of branching fractions B( t -> H-+/- b) x B( H +/- -> cb) for charged Higgs boson masses between 60 and 160 GeV, assuming the SM production of the top-quark pairs. | en_US |
dc.fullTextLevel | Full Text | en_US |
dc.identifier.doi | 10.1007/JHEP09(2023)004 | en_US |
dc.identifier.issn | 1029-8479 | |
dc.identifier.uri | https://hdl.handle.net/11411/5326 | |
dc.identifier.uri | https://doi.org/10.1007/JHEP09(2023)004 | |
dc.identifier.wos | WOS:001062397100001 | en_US |
dc.identifier.wosquality | Q2 | en_US |
dc.indekslendigikaynak | Web of Science | en_US |
dc.issue | 9 | en_US |
dc.language.iso | en | en_US |
dc.national | International | en_US |
dc.numberofauthors | 200+ | en_US |
dc.publisher | SPRINGER | en_US |
dc.relation.ispartof | JOURNAL OF HIGH ENERGY PHYSICS | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Hadron-Hadron Scattering | en_US |
dc.title | Search for a light charged Higgs boson in t ? H±b decays, with H± ? cb, in the lepton plus jets final state in proton-proton collisions at ?s=13 TeV with the ATLAS detector | en_US |
dc.type | Article | en_US |