Browsing by Author "Işıldak, Bora"
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Search for exotic decays of a Higgs boson into undetectable particles and one or more photons
Khachatryan, V.; Işıldak, Bora (Elsevier, 2016-02-10)A search is presented for exotic decays of a Higgs boson into undetectable particles and one or two isolated photons in pp collisions at a center-of-mass energy of 8 TeV. The data correspond to an integrated luminosity of ... -
Search for exotic resonances decaying into WZ/ZZ in pp collisions at root s=7 TeV
Chatrchyan, S.; Işıldak, Bora (Springer Science+Business Media, 2013-02)A search for new exotic particles decaying to the VZ final state is performed, where V is either a W or a Z boson decaying into two overlapping jets and the Z decays into a pair of electrons, muons or neutrinos. The analysis ... -
Search for flavor changing neutral currents in top quark decays in pp collisions at 7 TeV
Chatrchyan, S.; Işıldak, Bora (Elsevier, 2013-01-29)The results of a search for flavor changing neutral currents in top quark decays t -> Zq in events with a topology compatible with the decay chain t (t) over bar -> Wb + Zq -> lvb + llq are presented. The search is performed ... -
Search for flavor-changing neutral current interactions of the top quark and higgs boson in final states with two photons in proton-proton collisions at √s = 13 TeV
Tumasyan, A.; Işıldak, Bora (American Physical Society, 2022-07-13)Proton-proton interactions resulting in final states with two photons are studied in a search for the signature of flavor-changing neutral current interactions of top quarks (t) and Higgs bosons (H). The analysis is based ... -
Search for flavor-changing neutral current interactions of the top quark and the Higgs boson decaying to a bottom quark-antiquark pair at √s = 13 TeV
Tumasyan, A.; Işıldak, Bora (Springer, 2022-02-21)A search for flavor-changing neutral current interactions of the top quark (t) and the Higgs boson (H) is presented. The search is based on a data sample corresponding to an integrated luminosity of 137 fb−1 recorded by ... -
Search for flavor-changing neutral currents in top-quark decays t -> Zq in pp collisions at root s=8 TeV
Chatrchyan, S.; Işıldak, Bora (American Physical Society, 2014-05-02)A search for flavor-changing neutral currents in top-quark decays t -> Zq is performed in events produced from the decay chain (tt) over bar -> Zq + Wb, where both vector bosons decay leptonically, producing a final state ... -
Search for fractionally charged particles in pp collisions at root s=7 TeV
Chatrchyan, S.; Işıldak, Bora (American Physical Society, 2013-05-01)A search is presented for free heavy long-lived fractionally charged particles produced in pp collisions at root s = 7 TeV. The data sample was recorded by the CMS detector at the LHC and corresponds to an integrated ... -
Search for gluino mediated bottom- and top-squark production in multijet final states in pp collisions at 8 TeV
Chatrchyan, S.; Işıldak, Bora (Elsevier, 2013-10)A search for supersymmetry is presented based on events with large missing transverse energy, no isolated electron or muon, and at least three jets with one or more identified as a bottom-quark jet. A simultaneous examination ... -
Search for heavy gauge W bosons in events with an energetic lepton and large missing transverse momentum at √s = 13 TeV
Işıldak, Bora (Elsevier, 2017)A search is presented for W bosons in events with an electron or muon and large missing transverse momentum, using proton–proton collision data at √s = 13 TeV collected with the CMS detector in 2015 and corresponding to ... -
Search for heavy lepton partners of neutrinos in proton-proton collisions in the context of the type III seesaw mechanism
Chatrchyan, S.; Işıldak, Bora (Elsevier, 2012-12-05)A search is presented in proton-proton collisions at root s = 7 TeV for fermionic triplet states expected in type Ill seesaw models. The search is performed using final states with three isolated charged leptons and an ... -
Search for heavy Majorana neutrinos in same-sign dilepton channels in proton-proton collisions at s√ = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2019-01-15)A search is performed for a heavy Majorana neutrino (N), produced in leptonic decay of a W boson propagator and decaying into a W boson and a lepton, with the CMS detector at the LHC. The signature used in this search ... -
Search for heavy Majorana neutrinos in μ±μ± + jets events in proton–proton collisions at source =8TeV
Khachatryan, V.; Işıldak, Bora (Elsevier, 2015-09)A search is performed for heavy Majorana neutrinos (N) using an event signature defined by two muons of the same charge and two jets (μ±μ±jj). The data correspond to an integrated luminosity of 19.7 fb−1 of proton–proton ... -
Search for heavy Majorana neutrinos in μ±μ±+jets and e±e±+jets events in pp collisions at =7 TeV
Chatrchyan, S.; Işıldak, Bora (Elsevier, 2012-10-22)A search is performed for heavy Majorana neutrinos (N) using an event signature defined by two same-sign charged leptons of the same flavour and two jets. The data correspond to an integrated luminosity of 4.98 fb−1 of pp ... -
Search for heavy narrow dilepton resonances in pp collisions at root s=7 TeV and root s=8 TeV
Chatrchyan, S.; Işıldak, Bora (Elsevier, 2013-03-13)Results are presented of a search for compositeness in electrons and muons using a data sample of pp collisions at a center-of-mass energy root s = 7 TeV collected with the CMS detector at the LHC and corresponding to an ... -
Search for heavy neutrinos and third-generation leptoquarks in hadronic states of two τ leptons and two jets in proton-proton collisions at √s = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2019-03-26)A search for new particles has been conducted using events with two high transverse momentum leptons that decay hadronically and at least two energetic jets. The analysis is performed using data from proton-proton collisions ... -
Search for heavy neutrinos and W bosons with right-handed couplings in proton-proton collisions at root s=8TeV
Khachatryan, V.; Işıldak, Bora (Springer Nature, 2014-11)A search for heavy, right-handed neutrinos, NℓNℓ ( ℓ=e,μℓ=e,μ ), and right-handed WRWR bosons, which arise in the left-right symmetric extensions of the standard model, has been performed by the CMS experiment. The ... -
Search for heavy neutrinos and W-R bosons with right-handed couplings in a left-right symmetric model in pp collisions at root s=7 TeV
Chatrchyan, S.; Işıldak, Bora (American Physical Society, 2012-12-27)Results are presented from a search for heavy, right-handed muon neutrinos, N-mu, and right-handed W-R bosons, which arise in the left-right symmetric extensions of the standard model. The analysis is based on a 5: 0 fb(-1) ... -
Search for heavy neutrinos or third-generation leptoquarks in final states with two hadronically decaying tau leptons and two jets in proton-proton collisions at root s=13 TeV
Khachatryan, V.; Işıldak, Bora (Springer International, 2017)A search for new particles has been conducted using events with two high transverse momentum (pT) τ leptons that decay hadronically, at least two high-pT jets, and missing transverse energy from the τ lepton decays. The ... -
Search for heavy quarks decaying into a top quark and a W or Z boson using lepton plus jets events in pp collisions at root s=7 TeV
Chatrchyan, S.; Işıldak, Bora (Springer Science+Business Media, 2013-01)Results are presented from a search for the pair-production of heavy quarks, Q (A) over bar, that decay exclusively into a top quark and a W or Z boson. The search is performed using a sample of proton-proton collisions ... -
Search for heavy resonances and quantum black holes in eμ, eτ, and μτ final states in proton-proton collisions at √s = 13 TeV
Tumasyan, A.; Işıldak, Bora (Springer, 2023-05-30)A search is reported for heavy resonances and quantum black holes decaying into eμ, eτ, and μτ final states in proton-proton collision data recorded by the CMS experiment at the CERN LHC during 2016–2018 at s = 13 TeV, ...
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