Browsing by Author "Baarmand, M.M."
Now showing items 1-20 of 118
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Angular analysis of the decay B0→K*0μ+μ- from pp collisions at s=8 TeV
Khachatryan, V.; Bhopatkar, Vallary; Sirunyan, A.M.; Tumasyan, A.; Baarmand, M.M.; Hohlmann, Marcus; Colafranceschi, Stefano; Roy, Tuhin S.; Noonan, d; Yumiceva, Francisco X. (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 ... -
Azimuthal decorrelation of jets widely separated in rapidity in pp collisions at √s = 7 TeV
The CMS collaboration; Sirunyan, A.M.; Khachatryan, V.; Baarmand, M.M.; Bhopatkar, Vallary; Noonan, D.; Colafranceschi, Stefano; Hohlmann, Marcus; Roy, Tuhin S.; Yumiceva, Francisco X. (2016-08-24)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=7 TeV. The measurement ... -
Charged-particle nuclear modification factors in PbPb and pPb collisions at √sNN=5.02 TeV
The CMS collaboration; Sirunyan, A.M.; Khachatryan, V.; Baarmand, M.M.; Bhopatkar, Vallary; Hohlmann, Marcus; Colafranceschi, Stefano; Noonan, D.; Roy, Tuhin S.; Yumiceva, Francisco X. (2017-04-07)The spectra of charged particles produced within the pseudorapidity window |η| < 1 at sNN=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 2015. The spectra ... -
Combined search for anomalous pseudoscalar HVV couplings in VH(H→bb‾) production and H → VV decay
Khachatryan, V.; Sirunyan, A.M.; Baarmand, M.M.; Hohlmann, Marcus; Colafranceschi, Stefano; Bhopatkar, Vallary; Noonan, D.; Roy, Tuhin S.; Yumiceva, Francisco X.; Kalakhety, H. (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 ... -
Cross section measurement of t-channel single top quark production in pp collisions at s=13TeV
Sirunyan, A.M.; Tumasyan, A.; Adam, W.; Baarmand, M.M.; Bhopatkar, Vallary; Colafranceschi, Stefano; Hohlmann, Marcus; Roy, Tuhin S.; Noonan, D.; Yumiceva, Francisco X. (2017-09-10)The cross section for the production of single top quarks in the t channel is measured in proton–proton collisions at 13TeV with the CMS detector at the LHC. The analyzed data correspond to an integrated luminosity of ... -
Decomposing transverse momentum balance contributions for quenched jets in PbPb collisions at √sNN=2.76 TeV
The CMS collaboration; Khachatryan, V.; Sirunyan, A.M.; Baarmand, M.M.; Hohlmann, Marcus; Colafranceschi, Stefano; Bhopatkar, Vallary; Noonan, D.; Roy, Tuhin S.; Yumiceva, Francisco X. (2016-11-09)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 ... -
Erratum to: Search for direct pair production of scalar top quarks in the single- and dilepton channels in proton-proton collisions at √s = 8 TeV (JHEP, (2016) 7, (027), 10.1007/JHEP07(2016)027)
The CMS collaboration; Khachatryan, V.; Sirunyan, A.M.; Baarmand, M.M.; Bhopatkar, Vallary; Colafranceschi, Stefano; Hohlmann, Marcus; Noonan, D.; Roy, Tuhin S.; Yumiceva, Francisco X. (2016-09-12)In the original paper, the wrong plot was used in figure 6. The corrected figure is given below. (Figure presented.). © 2016, The Author(s). -
Erratum to: Search for third-generation scalar leptoquarks in the tτ channel in proton-proton collisions at √s = 8 TeV (JHEP, (2015), 7, (42), 10.1007/JHEP07(2015)042)
The CMS collaboration; Sirunyan, A.M.; Khachatryan, V.; Baarmand, M.M.; Bhopatkar, Vallary; Colafranceschi, Stefano; Hohlmann, Marcus; Roy, Tuhin S.; Noonan, D.; Yumiceva, Francisco X. (2016-11-09)In the original paper, the wrong plot was used in figure 6. The correct figure is given below. (figure presented.). © 2016, The Author(s) -
Evidence for collectivity in pp collisions at the LHC
Khachatryan, V.; Sirunyan, A.M.; Tumasyan, A.; Baarmand, M.M.; Noonan, D.; Colafranceschi, Stefano; Hohlmann, Marcus; Bhopatkar, Vallary; Roy, Tuhin S.; Yumiceva, Francisco X. (2017-02-10)Measurements of two- and multi-particle angular correlations in pp collisions at s=5,7, and 13TeV are presented as a function of charged-particle multiplicity. The data, corresponding to integrated luminosities of 1.0pb−1 ... -
Evidence for exclusive γγ → W+ W− production and constraints on anomalous quartic gauge couplings in pp collisions at √s = 7 and 8 TeV
The CMS collaboration; Sirunyan, A.M.; Khachatryan, V.; Baarmand, M.M.; Hohlmann, Marcus; Noonan, D.; Bhopatkar, Vallary; Roy, Tuhin S.; Colafranceschi, Stefano; Yumiceva, Francisco X. (2016-08-22)A search for exclusive or quasi-exclusive γγ → W+W− production, via pp → p(*)W+W−p(*) → p(*)μ±e∓p(*) at √s = 8 TeV, is reported using data corresponding to an integrated luminosity of 19.7 fb−1. Events are selected by ... -
Inclusive and differential measurements of the tt charge asymmetry in pp collisions at √s=8 TeV
Khachatryan, V.; Sirunyan, A.M.; Tumasyan, A.; Baarmand, M.M.; Bhopatkar, Vallary; Hohlmann, Marcus; Roy, Tuhin S.; Yumiceva, Francisco X.; Mareskas-palcek, D.; Kalakhety, H. (2016-06-10)The tt- charge asymmetry is measured in proton-proton collisions at a centre-of-mass energy of 8 TeV. The data, collected with the CMS experiment at the LHC, correspond to an integrated luminosity of 19.7 fb-1. Selected ... -
Inclusive search for supersymmetry using razor variables in pp collisions at s =13 TeV
Khachatryan, V.; Sirunyan, A.M.; Tumasyan, A.; Baarmand, M.M.; Bhopatkar, Vallary; Hohlmann, Marcus; Noonan, D.; Colafranceschi, Stefano; Roy, Tuhin S.; Yumiceva, Francisco X. (2017-01-06)An inclusive search for supersymmetry using razor variables is performed in events with four or more jets and no more than one lepton. The results are based on a sample of proton-proton collisions corresponding to an ... -
Measurement of differential cross sections for top quark pair production using the lepton+jets final state in proton-proton collisions at 13 TeV
Sirunyan, A.M.; Khachatryan, V.; Tumasyan, A.; Baarmand, M.M.; Hohlmann, Marcus; Bhopatkar, Vallary; Colafranceschi, Stefano; Noonan, D.; Roy, Tuhin S.; Yumiceva, Francisco X. (2017-05-01)Differential and double-differential cross sections for the production of top quark pairs in proton-proton collisions at 13 TeV are measured as a function of jet multiplicity and of kinematic variables of the top quarks ... -
Measurement of double-differential cross sections for top quark pair production in pp collisions at √s=8TeV and impact on parton distribution functions
Sirunyan, A.M.; Tumasyan, A.; Adam, W.; Baarmand, M.M.; Bhopatkar, Vallary; Colafranceschi, Stefano; Noonan, D.; Hohlmann, Marcus; Roy, Tuhin S.; Yumiceva, Francisco X. (2017-07-11)Normalized double-differential cross sections for top quark pair (t t ¯) production are measured in pp collisions at a centre-of-mass energy of 8TeV with the CMS experiment at the LHC. The analyzed data correspond to an ... -
Measurement of electroweak production of a W boson and two forward jets in proton-proton collisions at √s = 8 TeV
The CMS collaboration; Sirunyan, A.M.; Khachatryan, V.; Baarmand, M.M.; Bhopatkar, Vallary; Roy, Tuhin S.; Hohlmann, Marcus; Colafranceschi, Stefano; Noonan, D.; Yumiceva, Francisco X. (2016-11-24)A measurement is presented of the cross section for the electroweak production of a W boson in association with two jets in proton-proton collisions at a center-of-mass energy of 8 TeV. The data set was collected with the ... -
Measurement of electroweak-induced production of Wγ with two jets in pp collisions at √s=8 TeV and constraints on anomalous quartic gauge couplings
The CMS collaboration; Khachatryan, V. G.; Sirunyan, A.M.; Baarmand, M.M.; Bhopatkar, Vallary; Colafranceschi, Stefano; Noonan, D.; Yumiceva, Francisco X.; Roy, Tuhin S.; Hohlmann, Marcus (2017-07-20)A measurement of electroweak-induced production of Wγ and two jets is performed, where the W boson decays leptonically. The data used in the analysis correspond to an integrated luminosity of 19.7 fb−1 collected by the CMS ... -
Measurement of inclusive jet cross sections in pp and PbPb collisions at s NN =2.76 TeV
Khachatryan, V.; Sirunyan, A.M.; Tumasyan, A.; Baarmand, M.M.; Bhopatkar, Vallary; Noonan, D.; Colafranceschi, Stefano; Hohlmann, Marcus; Roy, Tuhin S.; Yumiceva, Francisco X. (2017-07-17)Inclusive jet spectra from pp and PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76TeV, collected with the CMS detector at the CERN Large Hadron Collider, are presented. Jets are reconstructed with three ... -
Measurement of prompt and nonprompt J / ψ production in p p and p Pb collisions at √sNN=5.02TeV
Sirunyan, A.M.; Tumasyan, A.; Adam, W.; Baarmand, M.M.; Hohlmann, Marcus; Bhopatkar, Vallary; Noonan, D.; Roy, Tuhin S.; Colafranceschi, Stefano; Yumiceva, Francisco X. (2017-04-27)This paper reports the measurement of J / ψ meson production in proton–proton (p p) and proton–lead (p Pb) collisions at a center-of-mass energy per nucleon pair of 5.02TeV by the CMS experiment at the LHC. The data samples ... -
Measurement of spin correlations in tt production using the matrix element method in the muon+jets final state in pp collisions at √s=8 TeV
Khachatryan, V.; Sirunyan, A.M.; Tumasyan, A.; Baarmand, M.M.; Bhopatkar, Vallary; Noonan, D.; Hohlmann, Marcus; Roy, Tuhin S.; Yumiceva, Francisco X.; Kalakhety, H. (2016-07-10)The consistency of the spin correlation strength in top quark pair production with the standard model (SM) prediction is tested in the muon+jets final state. The events are selected from pp collisions, collected by the CMS ... -
Measurement of the CP-violating weak phase φs and the decay width difference δΓc using the Bs 0→J/ψφ(1020) decay channel in pp collisions at √ s=8 TeV
Khachatryan, V.; Sirunyan, A.M.; Tumasyan, A.; Baarmand, M.M.; Hohlmann, Marcus; Bhopatkar, Vallary; Noonan, D.; Roy, Tuhin S.; Yumiceva, Francisco X.; Kalakhety, H. (2016-06-10)The CP-violating weak phase φs of the Bs0 meson and the decay width difference δΓs of the Bs0 light and heavy mass eigenstates are measured with the CMS detector at the LHC using a data sample of Bs0→J/ψφ(1020)→μ+μ-K+K- ...