Browsing by Author "Khachatryan, V."
Now showing items 141-160 of 233
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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 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 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 resonances decaying to tau lepton pairs in proton-proton collisions at s√=13s=13 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2017-02)A search for heavy resonances that decay to tau lepton pairs is performed using proton-proton collisions at s√=13s=13 TeV. The data were collected with the CMS detector at the CERN LHC and correspond to an integrated ... -
Search for heavy resonances decaying to two Higgs bosons in final states containing four b quarks
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2016-07)A search is presented for narrow heavy resonances X decaying into pairs of Higgs bosons (H) in proton-proton collisions collected by the CMS experiment at the LHC at root s = 8 TeV. The data correspond to an integrated ... -
Search for Higgs boson off-shell production in proton-proton collisions at 7 and 8 TeV and derivation of constraints on its total decay width
Khachatryan, V.; Işıldak, Bora (Springer Nature, 2016-09)A search is presented for the Higgs boson off-shell production in gluon fusion and vector boson fusion processes with the Higgs boson decaying into a W+W− pair and the W bosons decaying leptonically. The data observed in ... -
Search for high-mass diphoton resonances in proton-proton collisions at 13 TeV and combination with 8 TeV search
Khachatryan, V.; Işıldak, Bora (Elsevier, 2017)A search for the resonant production of high-mass photon pairs is presented. The search focuses on spin-0 and spin-2 resonances with masses between 0.5 and 4.5 TeV, and with widths, relative to the mass, between 1.4×10−4 ... -
Search for high-mass Z gamma resonances in e(+)e(-)gamma and mu(+)mu(-)gamma final states in proton-proton collisions at root s=8 and 13 TeV
Khachatryan, V.; Işıldak, Bora (Springer International, 2017)This paper describes the search for a high-mass narrow-width scalar particle decaying into a Z boson and a photon. The analysis is performed using proton-proton collision data recorded with the CMS detector at the LHC at ... -
Search for jet extinction in the inclusive jet-p(T) spectrum from proton-proton collisions at root s=8 TeV
Khachatryan, V.; Işıldak, Bora (American Physical Society, 2014-08-01)The first search at the LHC for the extinction of QCD jet production is presented, using data collected with the CMS detector corresponding to an integrated luminosity of 10.7 fb-1 of proton-proton collisions at a ... -
Search for lepton flavour violating decays of heavy resonances and quantum black holes to an eμ pair in proton–proton collisions at √s = 8 TeV
Khachatryan, V.; Işıldak, Bora (Springer Nature, 2016-06)A search for narrow resonances decaying to an electron and a muon is presented. The ee μμ mass spectrum is also investigated for non-resonant contributions from the production of quantum black holes (QBHs). The analysis ... -
Search for lepton flavour violating decays of the Higgs boson to e tau and e mu in proton-proton collisions at root s=8 TeV
Khachatryan, V.; Işıldak, Bora (Elsevier, 2016)A direct search for lepton flavour violating decays of the Higgs boson (H) in the H. etand H. e mu channels is described. The data sample used in the search was collected in proton-proton collisions at root s= 8 TeVwith ... -
Search for lepton-flavour-violating decays of the Higgs boson
Khachatryan, V.; Işıldak, Bora (Elsevier, 2015-10-07)The first direct search for lepton-flavour-violating decays of the recently discovered Higgs boson (H) is described. The search is performed in the H→μτe and H→μτh channels, where τe and τh are tau leptons reconstructed ... -
Search for leptophobic Z′ bosons decaying into four-lepton final states in proton–proton collisions at √s = 8 TeV
Khachatryan, V.; Işıldak, Bora (Elsevier, 2017-10-10)A search for heavy narrow resonances decaying into four-lepton final states has been performed using proton-proton collision data at root s= 8 TeVcollected by the CMS experiment, corresponding to an integrated luminosity ... -
Search for light bosons in decays of the 125 GeV Higgs boson in proton-proton collisions at √s = 8 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2017-10-11)A search is presented for decays beyond the standard model of the 125 GeV Higgs bosons to a pair of light bosons, based on models with extended scalar sectors. Light boson masses between 5 and 62.5 GeV are probed in final ... -
Search for long-lived charged particles in proton-proton collisions at √ s = 13 TeV
Khachatryan, V.; Işıldak, Bora (APS, 2016)Results are presented of a search for heavy stable charged particles produced in proton-proton collisions at √s=13 TeV using a data sample corresponding to an integrated luminosity of 2.5 fb−1 collected in 2015 with the ... -
Search for long-lived particles that decay into final states containing two electrons or two muons in proton-proton collisions at root s=8Tev
Khachatryan, V.; Işıldak, Bora (American Physical Society, 2015-03-01)A search is performed for long-lived particles that decay into final states that include a pair of electrons or a pair of muons. The experimental signature is a distinctive topology consisting of a pair of charged leptons ... -
Search for massive WH resonances decaying into the ℓνbb¯ final state at √s = 8 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2016-05)A search for a massive resonance W′W′ decaying into a W and a Higgs boson in the ℓνbb¯¯¯ℓνbb¯ ( ℓ=eℓ=e , μμ ) final state is presented. Results are based on data corresponding to an integrated luminosity of 19.7 fb−1fb−1 ... -
Search for monotop signatures in proton-proton collisions at root s=8 TeV
Khachatryan, V.; Işıldak, Bora (American Physical Society, 2015-03-13)Results are presented from a search for new decaying massive particles whose presence is inferred from an imbalance in transverse momentum and which are produced in association with a single top quark that decays into a ... -
Search for narrow high-mass resonances in proton-proton collisions at √s = 8 TeV decaying to a Z and a Higgs boson
Khachatryan, V.; Işıldak, Bora (Elsevier, 2015-07-02)A search for a narrow, high-mass resonance decaying into Z and Higgs (H) bosons is presented. The final state studied consists of a merged jet pair and a τ pair resulting from the decays of Z and H bosons, respectively. ... -
Search for narrow resonances decaying to dijets in proton-proton collisions at s =13 TeV
Khachatryan, V.; Işıldak, Bora (American Physical Society, 2016-02-19)A search for narrow resonances in proton-proton collisions at s√=13 TeV is presented. The invariant mass distribution of the two leading jets is measured with the CMS detector using a data set corresponding to an integrated ...
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