[Magdi] Search for resonances and quantum black holes using dijet mass spectra in proton-proton collisions at s =8TeV

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dc.contributor.authorKhachatryan, V.
dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorJ. Karancsi
dc.contributor.authorA. Makovec
dc.contributor.authorP. Raics
dc.contributor.authorZ.L. Trocsanyi
dc.contributor.authorB. Ujvari
dc.contributor.authorKarancsi János (1987-) (fizikus)
dc.contributor.authorMakovec Alajos (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.accessioned2024-09-02T12:31:13Z
dc.date.available2024-09-02T12:31:13Z
dc.date.oa2024-09-20
dc.date.updated2024-09-02T12:31:12Z
dc.description.abstractA search for resonances and quantum black holes is performed using the dijet mass spectra measured in proton-proton collisions at s=8TeV with the CMS detector at the LHC. The data set corresponds to an integrated luminosity of 19.7fb-1. In a search for narrow resonances that couple to quark-quark, quark-gluon, or gluon-gluon pairs, model-independent upper limits, at 95% confidence level, are obtained on the production cross section of resonances, with masses above 1.2 TeV. When interpreted in the context of specific models the limits exclude string resonances with masses below 5.0 TeV; excited quarks below 3.5 TeV; scalar diquarks below 4.7 TeV; W′ bosons below 1.9 TeV or between 2.0 and 2.2 TeV; Z′ bosons below 1.7 TeV; and Randall-Sundrum gravitons below 1.6 TeV. A separate search is conducted for narrow resonances that decay to final states including b quarks. The first exclusion limit is set for excited b quarks, with a lower mass limit between 1.2 and 1.6 TeV depending on their decay properties. Searches are also carried out for wide resonances, assuming for the first time width-to-mass ratios up to 30%, and for quantum black holes with a range of model parameters. The wide resonance search excludes axigluons and colorons with mass below 3.6 TeV, and color-octet scalars with mass below 2.5 TeV. Lower bounds between 5.0 and 6.3 TeV are set on the masses of quantum black holes.
dc.description.correctorTB
dc.identifier.citationPhysical Review D. -91 : 5 (2015), p. 1-29. -Phys. Rev. D. -1550-7998
dc.identifier.doi10.1103/PhysRevD.91.052009
dc.identifier.issn1550-7998
dc.identifier.opachttps://ebib.lib.unideb.hu/ebib/CorvinaWeb?action=cclfind&resultview=long&ccltext=idno+BIBFORM123692
dc.identifier.urihttps://hdl.handle.net/2437/379425
dc.identifier.urlhttps://link.aps.org/doi/10.1103/PhysRevD.91.052009
dc.languageeng
dc.rights.accessopen access article
dc.rights.ownerszerző
dc.subject.otheridegen nyelvű folyóiratközlemény külföldi lapban
dc.title[Magdi] Search for resonances and quantum black holes using dijet mass spectra in proton-proton collisions at s =8TeV
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