A search for the standard model Higgs boson decaying to charm quarks

dc.WoS.categoriesPhysics, Particles & Fieldsen_US
dc.contributor.authorYetkin, Elif Aslı
dc.date.accessioned2020-05-07T12:16:00Z
dc.date.available2020-05-07T12:16:00Z
dc.date.issued2020-03-24
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description.abstractA direct search for the standard model Higgs boson, H, produced in association with a vector boson, V (W or Z), and decaying to a charm quark pair is presented. The search uses a data set of proton-proton collisions corresponding to an integrated luminosity of 35.9 fb(-1), collected by the CMS experiment at the LHC in 2016, at a centre-of-mass energy of 13 TeV. The search is carried out in mutually exclusive channels targeting specific decays of the vector bosons: W -> l nu, Z -> ll, and Z -> nu nu, where l is an electron or a muon. To fully exploit the topology of the H boson decay, two strategies are followed. In the first one, targeting lower vector boson transverse momentum, the H boson candidate is reconstructed via two resolved jets arising from the two charm quarks from the H boson decay. A second strategy identifies the case where the two charm quark jets from the H boson decay merge to form a single jet, which generally only occurs when the vector boson has higher transverse momentum. Both strategies make use of novel methods for charm jet identification, while jet substructure techniques are also exploited to suppress the background in the merged-jet topology. The two analyses are combined to yield a 95% confidence level observed (expected) upper limit on the cross section sigma(VH) corresponding to 70 (37) times the standard model prediction.en_US
dc.fullTextLevelFull Texten_US
dc.identifier.doi10.1007/JHEP03(2020)131en_US
dc.identifier.issn1029-8479
dc.identifier.scopus2-s2.0-85082571729en_US
dc.identifier.urihttps://hdl.handle.net/11411/2007
dc.identifier.urihttps://doi.org/10.1007/JHEP03(2020)131
dc.identifier.wosWOS:000522420200001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.issue3en_US
dc.language.isoenen_US
dc.nationalInternationalen_US
dc.numberofauthors1000+en_US
dc.publisherSpringeren_US
dc.relation.ispartofJournal of High Energy Physicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.scopus.SNIP1.132en_US
dc.subjectHadron-Hadron scattering (experimentsen_US
dc.subjectHiggs physicsen_US
dc.subjectCharm physicsen_US
dc.titleA search for the standard model Higgs boson decaying to charm quarksen_US
dc.typeArticleen_US

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