Browsing Natural and Mathematical Sciences by Author "Khachatryan, V."
Now showing items 1-20 of 233
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Angular analysis of the decay B0→K*0μ+μ- from pp collisions at s=8 TeV
Khachatryan, V.; Işıldak, Bora (Elsevier, 2016-02-10)The angular distributions and the differential branching fraction of the decay B0→K⁎(892)0μ+μ− are studied using data corresponding to an integrated luminosity of 20.5 fb−1 collected with the CMS detector at the LHC in pp ... -
Angular coefficients of Z bosons produced in pp collisions at s=8 TeV and decaying to μ+μ- as a function of transverse momentum and rapidity
Khachatryan, V.; Işıldak, Bora (Elsevier, 2015-11-12)Measurements of the five most significant angular coefficients, A0 through A4, for Z bosons produced in pp collisions at View the MathML source and decaying to μ+μ− are presented as a function of the transverse momentum ... -
Azimuthal decorrelation of jets widely separated in rapidity in pp collisions at s√=7s=7 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2018)The decorrelation in the azimuthal angle between the most forward and the most backward jets (Mueller-Navelet jets) is measured in data collected in pp collisions with the CMS detector at the LHC at s√=7s=7 TeV. The ... -
Charged-particle nuclear modification factors in PbPb and pPb collisions at root s(NN)=5.02 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2017)The spectra of charged particles produced within the pseudorapidity window |η| < 1 at sNN−−−−√=5.02sNN=5.02 TeV are measured using 404 μb−1 of PbPb and 27.4 pb−1 of pp data collected by the CMS detector at the LHC in ... -
CMS Collaboration
Khachatryan, V.; Işıldak, Bora (Elsevier, 2014-11) -
The CMS trigger system
Khachatryan, V.; Işıldak, Bora (IOP , 2017)This paper describes the CMS trigger system and its performance during Run 1 of the LHC. The trigger system consists of two levels designed to select events of potential physics interest from a GHz (MHz) interaction rate ... -
Coherent J/ψ photoproduction in ultra-peripheral PbPb collisions at √sNN = 2.76 TeV with the CMS experiment
Khachatryan, V.; Işıldak, Bora (Elsevier, 2017-09-10)The cross section for coherent J/psi photoproduction accompanied by at least one neutron on one side of the interaction point and no neutron activity on the other side, Xn0n, is measured with the CMS experiment in ... -
Combined search for anomalous pseudoscalar HVV couplings in VH(H→bb‾) production and H → VV decay
Khachatryan, V.; Işıldak, Bora (Elsevier, 2016-08-10)A search for anomalous pseudoscalar couplings of the Higgs boson H to electroweak vector bosons V (=W or Z) in a sample of proton–proton collision events corresponding to an integrated luminosity of 18.9 fb−1 at a ... -
Comparison of the Z/γ ∗ + jets to γ + jets cross sections in pp collisions at = 8 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2015-10)A comparison of the differential cross sections for the processes Z/γ * + jets and photon (γ)+jets is presented. The measurements are based on data collected with the CMS detector at s√=8s=8 TeV corresponding to an ... -
Constraints on parton distribution functions and extraction of the strong coupling constant from the inclusive jet cross section in pp collisions at root s=7TeV
Khachatryan, V.; Işıldak, Bora (Springer, 2015-06)The inclusive jet cross section for proton–proton collisions at a centre-of-mass energy of 7 TeVTeV was measured by the CMS Collaboration at the LHC with data corresponding to an integrated luminosity of 5.0 fb−1fb−1 . The ... -
Constraints on the pMSSM, AMSB model and on other models from the search for long-lived charged particles in proton–proton collisions at s√=8TeV
Khachatryan, V.; Işıldak, Bora (Springer, 2015-07-15)Stringent limits are set on the long-lived lepton-like sector of the phenomenological minimal supersymmetric standard model (pMSSM) and the anomaly-mediated supersymmetry breaking (AMSB) model. The limits are derived from ... -
Constraints on the spin-parity and anomalous HVV couplings of the Higgs boson in proton collisions at 7 and 8 TeV
Khachatryan, V.; Işıldak, Bora (American Physical Society, 2015-07-13)The study of the spin-parity and tensor structure of the interactions of the recently discovered Higgs boson is performed using the H→ZZ,Zγ∗,γ∗γ∗→4ℓ, H→WW→ℓνℓν, and H→γγ decay modes. The full data set recorded by the CMS ... -
Correlations between jets and charged particles in PbPb and pp collisions at s<inf>NN</inf>=2.76 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2016-02)The quark-gluon plasma is studied via medium-induced changes to correlations between jets and charged particles in PbPb collisions compared to pp reference data. This analysis uses data sets from PbPb and pp collisions ... -
Decomposing transverse momentum balance contributions for quenched jets in PbPb collisions at √=2.76sNN=2.76 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2016)Interactions between jets and the quark-gluon plasma produced in heavy ion collisions are studied via the angular distributions of summed charged-particle transverse momenta (pT) with respect to both the leading and ... -
Differential cross section measurements for the production of a W boson in association with jets in proton-proton collisions at s = 7 TeV
Khachatryan, V.; Işıldak, Bora (Elsevier, 2015-02-04)Measurements are reported of differential cross sections for the production of a W boson, which decays into a muon and a neutrino, in association with jets, as a function of several variables, including the transverse ... -
Distributions of topological observables in inclusive three- and four-jet events in pp collisions at s√=7s=7TeV
Khachatryan, V.; Işıldak, Bora (Springer, 2015-07)This paper presents distributions of topological observables in inclusive three- and four-jet events produced in pp collisions at a centre-of-mass energy of 7 TeVTeV with a data sample collected by the CMS experiment ... -
Erratum to: Comparison of the Z/γ* + jets to γ + jets cross sections in pp collisions at √s = 8
Khachatryan, V.; Işıldak, Bora (Springer Nature, 2016-04) -
Erratum to: search for dark matter in proton-proton collisions at 8 TeV with missing transverse momentum and vector boson tagged jets
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2017-08-09)In the published version, the limits shown in the bottom-right panel of figure 11 were produced using an incorrect formula to translate the mMED − mDM limits into the plane of DM pair annihilation cross section versus mDM. -
Erratum to: Search for direct pair production of scalar top quarks in the single- and dilepton channels in proton-proton collisions at s√=8s=8 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2016) -
Erratum to: Search for third-generation scalar leptoquarks in the tτ channel in proton-proton collisions at √s = 8 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2016)
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