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dc.contributor.authorOsland, Per
dc.contributor.authorPankov, Alexander A.
dc.contributor.authorTsytrinov, Andrej V.
dc.PublishedEuropean Physical Journal C 2015, 75:199(5)eng
dc.description.abstractWe discuss the discrimination of the 125 GeV spin-parity 0+ Higgs-like boson observed at the LHC, decaying into two photons, H→γγ, against the hypothesis of a minimally coupled JP=2+ narrow diphoton resonance with the same mass and giving the same total number of signal events under the peak. We apply, as the basic observable of the analysis, the center–edge asymmetry ACE of the cosine of the polar angle of the produced photons in the diphoton rest frame to distinguish between the tested spin hypotheses. We show that the center–edge asymmetry ACE should provide a strong discrimination between the possibilities of spin-0 and spin-2 with graviton-like couplings, depending on the fraction of qˉq production of the spin-2 signal, reaching CLs<10−6 for fqq=0. Indeed, the ACE has the potential to do better than existing analyses for fqq<0.4.en_US
dc.rightsAttribution CC BYeng
dc.subjectHiggs-like boson spineng
dc.titleThe Higgs-like boson spin from the center–edge asymmetry in the diphoton channel at the LHCen_US
dc.typePeer reviewed
dc.typeJournal article
dc.rights.holderCopyright The Author(s) 2015en_US
dc.subject.nsiVDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431
dc.subject.nsiVDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400en_US

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