Study of the mass and spin-parity of the Higgs boson candidate via its decays to Z boson pairs

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dc.contributor.authorS. Chatrchyan
dc.contributor.authorV. Khachatryan
dc.contributor.authorA. M. Sirunyan
dc.contributor.authorJ. Karancsi
dc.contributor.authorP. Raics
dc.contributor.authorZ. L. Trocsanyi
dc.contributor.authorB. Ujvari
dc.contributor.authorKarancsi János (1987-) (fizikus)
dc.contributor.authorRaics Péter (1944-) (fizikus)
dc.contributor.authorTrócsányi Zoltán (1961-) (fizikus)
dc.contributor.authorUjvári Balázs (1977-) (Fizikus / PhD)
dc.contributor.submitterdepDebreceni Egyetem
dc.date.accessioned2024-09-17T05:53:44Z
dc.date.available2024-09-17T05:53:44Z
dc.date.oa2025-03-28
dc.date.updated2024-09-17T05:53:43Z
dc.description.abstractA study is presented of the mass and spin-parity of the new boson recently observed at the LHC at a mass near 125 GeV. An integrated luminosity of 17.3 fb-1, collected by the CMS experiment in proton-proton collisions at center-of-mass energies of 7 and 8 TeV, is used. The measured mass in the ZZ channel, where both Z bosons decay to e or μ pairs, is 126.2±0.6(stat) ±0.2(syst) GeV. The angular distributions of the lepton pairs in this channel are sensitive to the spin-parity of the boson. Under the assumption of spin 0, the present data are consistent with the pure scalar hypothesis, while disfavoring the pure pseudoscalar hypothesis.
dc.description.correctorLB
dc.identifier.citationPhysical Review Letters. -110 : 8 (2024), p. 1-15. -Phys. Rev. Lett. -0031-9007
dc.identifier.doi10.1103/PhysRevLett.110.081803
dc.identifier.issn0031-9007
dc.identifier.opachttps://ebib.lib.unideb.hu/ebib/CorvinaWeb?action=cclfind&resultview=long&ccltext=idno+BIBFORM124043
dc.identifier.urihttps://hdl.handle.net/2437/380164
dc.languageeng
dc.rights.accessopen access article
dc.rights.ownerCERN
dc.subject.otheridegen nyelvű folyóiratközlemény külföldi lapban
dc.subject.otherCenter-of-mass energies
dc.subject.otherCentre-of-mass energies
dc.subject.otherCreative Commons
dc.subject.otherHiggs boson
dc.subject.otherIntegrated luminosity
dc.subject.otherLepton pairs
dc.subject.otherProton proton collisions
dc.subject.otherPseudoscalars
dc.subject.otherZ Bosons
dc.titleStudy of the mass and spin-parity of the Higgs boson candidate via its decays to Z boson pairs
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