Search for a Higgs boson decaying into γ*γ→ℓℓγ with low dilepton mass in pp collisions at √s=8 TeV
dc.contributor.author | Khachatryan, V. | |
dc.contributor.author | Işıldak, Bora | |
dc.date.accessioned | 2016-06-29T13:04:32Z | |
dc.date.available | 2016-06-29T13:04:32Z | |
dc.date.issued | 2016-02-10 | |
dc.identifier.issn | 1873-2445 | |
dc.identifier.uri | http://hdl.handle.net/10679/4109 | |
dc.identifier.uri | http://www.sciencedirect.com/science/article/pii/S0370269315009879 | |
dc.description.abstract | A search is described for a Higgs boson decaying into two photons, one of which has an internal conversion to a muon or an electron pair (ℓℓγ). The analysis is performed using proton–proton collision data recorded with the CMS detector at the LHC at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 fb−1. The events selected have an opposite-sign muon or electron pair and a high transverse momentum photon. No excess above background has been found in the three-body invariant mass range 120<mℓℓγ<150 GeV, and limits have been derived for the Higgs boson production cross section times branching fraction for the decay H→γ⁎γ→ℓℓγ, where the dilepton invariant mass is less than 20 GeV. For a Higgs boson with mH=125 GeV, a 95% confidence level (CL) exclusion observed (expected) limit is 6.7 (View the MathML source) times the standard model prediction. Additionally, an upper limit at 95% CL on the branching fraction of H→(J/ψ)γ for the 125 GeV Higgs boson is set at 1.5×10−3. | |
dc.description.sponsorship | BMWF ; FWF ; FNRS ; FWO ; CNPq ; CAPES ; FAPERJ ; FAPESP ; MEYS ; CERN ; CAS ; MoST ; NSFC ; COLCIENCIAS ; MSES ; RPF ; MoER ; SF0690030s09 ; ERDF ; Academy of Finland ; MEC ; HIP ; CEA ; CNRS/IN2P3 ; BMBF ; DFG ; HGF ; GSRT ; OTKA ; NKTH ; DAE ; DST ; IPM ; SFI ; INFN ; NRF ; WCU ; LAS ; CINVESTAV ; CONACYT ; SEP ; UASLP-FAI ; MSI ; PAEC ; MSHE ; NSC ; FCT ; JINR ; MON ; RosAtom ; RAS ; RFBR ; MSTD ; SEIDI ; CPAN ; Swiss Funding Agencies ; NSC ; ThEPCenter ; IPST ; NSTDA ; TUBITAK ; TAEK ; NASU ; STFC ; University of California Institute for Mexico and the United States ; the Marie-Curie programme and the European Research Council and EPLANET ; DOE and NSF. | |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | |
dc.relation.ispartof | Physics Letters B | |
dc.rights | restrictedAccess | |
dc.title | Search for a Higgs boson decaying into γ*γ→ℓℓγ with low dilepton mass in pp collisions at √s=8 TeV | en_US |
dc.type | Article | en_US |
dc.peerreviewed | yes | |
dc.publicationstatus | published | en_US |
dc.contributor.department | Özyeğin University | |
dc.contributor.authorID | (ORCID 0000-0002-0283-5234 & YÖK ID 124605) Işıldak, Bora | |
dc.contributor.ozuauthor | Işıldak, Bora | |
dc.creator | The CMS Collaboration | |
dc.identifier.volume | 753 | |
dc.identifier.startpage | 341 | |
dc.identifier.endpage | 362 | |
dc.identifier.wos | WOS:000368783600052 | |
dc.identifier.doi | 10.1016/j.physletb.2015.12.039 | |
dc.subject.keywords | CMS | |
dc.subject.keywords | Physics | |
dc.subject.keywords | Higgs boson | |
dc.subject.keywords | Dalitz decay | |
dc.identifier.scopus | SCOPUS:2-s2.0-84952801806 | |
dc.contributor.authorMale | 1 |
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