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LHC searches for top-philic Kaluza-Klein graviton

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cris.lastimport.scopus2024-02-12T20:43:50Z
dc.abstract.enWe study the phenomenology of a massive graviton G with non-universal couplings to the Standard Model (SM) particles. Such a particle can arise as a warped Kaluza-Klein graviton from a framework of the Randall-Sundrum extra-dimension model. In particular, we consider a case in which G is top-philic, i.e., G interacts strongly with the right-handed top quark, resulting in the large top-loop contributions to its production via the gluon fusion and its decays to the SM gauge bosons. We take into account the constraints from the current 13 TeV LHC data on the channels of tt¯, γγ, jj(gg), γZ, and ZZ. Consequently, it is found that the strongest limit for this spin-2 resonance G comes from the tt¯ pair search, which constrains the cutoff scale to be of O(100 GeV) for the right-top coupling of O(1) and the massive graviton mass in the range mG = 2–5 TeV, significantly relaxed compared with the universal G coupling case.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorGeng, Chao-Qiang
dc.contributor.authorHuang, Da
dc.contributor.authorYamashita, Kimiko
dc.date.accessioned2024-01-25T05:09:31Z
dc.date.available2024-01-25T05:09:31Z
dc.date.issued2018
dc.description.financeNie dotyczy
dc.description.number10
dc.description.volume2018
dc.identifier.doi10.1007/JHEP10(2018)046
dc.identifier.issn1126-6708
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/111179
dc.identifier.weblinkhttp://link.springer.com/content/pdf/10.1007/JHEP10(2018)046.pdf
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartofJournal of High Energy Physics
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleLHC searches for top-philic Kaluza-Klein graviton
dc.typeJournalArticle
dspace.entity.typePublication