Search for Higgs boson decays into a pair of pseudoscalar particles in the bb?? final state with the ATLAS detector in pp collisions at s =13 TeV
| dc.contributor.author | Çetin, Serkant Ali | |
| dc.date.accessioned | 2022-11-14T09:14:49Z | |
| dc.date.available | 2022-11-14T09:14:49Z | |
| dc.date.issued | 2022-01-01 | |
| dc.department | Fakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümü | en_US |
| dc.description.abstract | Abstract: This paper presents a search for decays of the Higgs boson with a mass of 125 GeV into a pair of new pseudoscalar particles, H?aa, where one a-boson decays into a b-quark pair and the other into a muon pair. The search uses 139 fb-1 of proton-proton collision data at a center-of-mass energy of s=13 TeV recorded between 2015 and 2018 by the ATLAS experiment at the LHC. A narrow dimuon resonance is searched for in the invariant mass spectrum between 16 GeV and 62 GeV. The largest excess of events above the Standard Model backgrounds is observed at a dimuon invariant mass of 52 GeV and corresponds to a local (global) significance of 3.3? (1.7?). Upper limits at 95% confidence level are placed on the branching ratio of the Higgs boson to the bb?? final state, B(H?aa?bb??), and are in the range 0.2-4.0×10-4, depending on the signal mass hypothesis. © 2022 CERN. | en_US |
| dc.fullTextLevel | Full Text | en_US |
| dc.identifier.doi | 10.1103/PhysRevD.105.012006 | |
| dc.identifier.issn | 2470-0010 | |
| dc.identifier.scopus | 2-s2.0-85123801030 | en_US |
| dc.identifier.uri | https://hdl.handle.net/11411/4671 | |
| dc.identifier.uri | https://doi.org/10.1103/PhysRevD.105.012006 | |
| dc.identifier.wos | WOS:000748662900004 | en_US |
| dc.identifier.wosquality | Q1 | en_US |
| dc.indekslendigikaynak | Web of Science | en_US |
| dc.indekslendigikaynak | Scopus | en_US |
| dc.issue | 1 | en_US |
| dc.language.iso | en | en_US |
| dc.national | International | en_US |
| dc.numberofauthors | 100+ | en_US |
| dc.publisher | American Physical Society | en_US |
| dc.relation.ispartof | Physical Review D | en_US |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
| dc.rights | info:eu-repo/semantics/openAccess | en_US |
| dc.snmz | 20240718_Mükerrer | |
| dc.title | Search for Higgs boson decays into a pair of pseudoscalar particles in the bb?? final state with the ATLAS detector in pp collisions at s =13 TeV | |
| dc.type | Article | |
| dc.volume | 105 | en_US |
