Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/11147/7148

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Publisher: search.filters.publisher.Elsevier Ltd.Subject: search.filters.subject.Proton–proton collisions

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  • Article
    Citation - WoS: 97
    Citation - Scopus: 114
    Search for Higgs Boson Pair Production in Events With Two Bottom Quarks and Two Tau Leptons in Proton–proton Collisions at S=13tev
    (Elsevier Ltd., 2018) CMS Collaboration; Karapınar, Güler; Karapınar, Güler; 01. Izmir Institute of Technology
    A search for the production of Higgs boson pairs in proton–proton collisions at a centre-of-mass energy of 13 TeV is presented, using a data sample corresponding to an integrated luminosity of 35.9fb−1 collected with the CMS detector at the LHC. Events with one Higgs boson decaying into two bottom quarks and the other decaying into two τ leptons are explored to investigate both resonant and nonresonant production mechanisms. The data are found to be consistent, within uncertainties, with the standard model background predictions. For resonant production, upper limits at the 95% confidence level are set on the production cross section for Higgs boson pairs as a function of the hypothesized resonance mass and are interpreted in the context of the minimal supersymmetric standard model. For nonresonant production, upper limits on the production cross section constrain the parameter space for anomalous Higgs boson couplings. The observed (expected) upper limit at 95% confidence level corresponds to about 30 (25) times the prediction of the standard model.
  • Article
    Citation - WoS: 30
    Citation - Scopus: 33
    Search for Heavy Resonances Decaying To a Top Quark and a Bottom Quark in the Lepton+jets Final State in Proton–proton Collisions at 13 Tev
    (Elsevier Ltd., 2018) CMS Collaboration; Karapınar, Güler; Karapınar, Güler; 01. Izmir Institute of Technology
    A search is presented for narrow heavy resonances decaying to a top quark and a bottom quark using data collected by the CMS experiment at s=13TeV in 2016. The data set analyzed corresponds to an integrated luminosity of 35.9fb−1. Final states that include a single lepton (e, μ), multiple jets, and missing transverse momentum are analyzed. No evidence is found for the production of a W′ boson, and the production of right-handed W′ bosons is excluded at 95% confidence level for masses up to 3.6TeV depending on the scenario considered. Exclusion limits for W′ bosons are also presented as a function of their coupling strength to left- and right-handed fermions. These limits on a W′ boson decaying via a top and a bottom quark are the most stringent published to date.