Adıyaman Üniversitesi Kurumsal Arşivi

Search for a standard model-like Higgs boson in the mu(+)mu(-) and e(+)e(-) decay channels at the LHC

Basit öğe kaydını göster

dc.contributor.author CMS Collaboration
dc.date.accessioned 2023-01-20T10:57:30Z
dc.date.available 2023-01-20T10:57:30Z
dc.date.issued 2015
dc.identifier.issn 0370-2693
dc.identifier.uri http://dspace.adiyaman.edu.tr:8080/xmlui/handle/20.500.12414/4363
dc.description.abstract A search is presented for a standard model-like Higgs boson decaying to the mu(+)mu(-) or e(+)e(-) final states based on proton-proton collisions recorded by the CMS experiment at the CERN LHC. The data correspond to integrated luminosities of 5.0 fb(-1) at a centre-of-mass energy of 7 TeV and 19.7 fb(-1) at 8 TeV for the mu(+)mu(-) search, and of 19.7 fb(-1) at 8 TeV for the e(+)e(-) search. Upper limits on the production cross section times branching fraction at the 95% confidence level are reported for Higgs boson masses in the range from 120 to 150 GeV. For a Higgs boson with a mass of 125 GeV decaying to mu(+)mu(-), the observed (expected) upper limit on the production rate is found to be 7.4 (6.5(-1.9)(+2.8)) times the standard model value. This corresponds to an upper limit on the branching fraction of 0.0016. Similarly, for e(+)e(-), an upper limit of 0.0019 is placed on the branching fraction, which is approximate to 3.7 x 10(5) times the standard model value. These results, together with recent evidence of the 125 GeV boson coupling to tau-leptons with a larger branching fraction consistent with the standard model, confirm that the leptonic couplings of the new boson are not flavour-universal. tr
dc.language.iso en tr
dc.publisher Elsevier tr
dc.subject CMS tr
dc.subject Physics tr
dc.subject Higgs tr
dc.subject Muon tr
dc.subject Dilepton tr
dc.subject Dimuon tr
dc.subject Dielectron tr
dc.subject Lepton tr
dc.subject Electron tr
dc.subject Higgs bason tr
dc.title Search for a standard model-like Higgs boson in the mu(+)mu(-) and e(+)e(-) decay channels at the LHC tr
dc.type Article tr
dc.identifier.endpage 207 tr
dc.identifier.startpage 184 tr
dc.identifier.volume 744 tr
dc.source.title Physical Letters B tr


Bu öğenin dosyaları:

Bu öğe aşağıdaki koleksiyon(lar)da görünmektedir.

Basit öğe kaydını göster