Browsing by Author "Yumiceva, Francisco X."
Now showing items 1-20 of 200
-
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 measurement of the higgs boson mass in pp collisions at √s =7 and 8 TeV with the ATLAS and CMS experiments
Hohlmann, Marcus; Bhopatkar, Vallary; Kalakhety, H.; Mareskas-palcek, Darren; Roy, Tuhin S.; Yumiceva, Francisco X.; Aad, G.; Abbott, B.; Abdinov, O. B. (2015-05-14)A measurement of the Higgs boson mass is presented based on the combined data samples of the ATLAS and CMS experiments at the CERN LHC in the H→γγ and H→ZZ→4 decay channels. The results are obtained from a simultaneous fit ... -
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 ... -
Determination of the top-quark pole mass and strong coupling constant from the tt̄ production cross section in pp collisions at √s = 7 TeV
Baarmand, Marc M.; Dorney, B.; Hohlmann, Marcus; Kalakhety, H.; Yumiceva, Francisco X.; Chatrchyan, S. A.; Khachatryan, Vardan; Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang (2014-01-20)The inclusive cross section for top-quark pair production measured by the CMS experiment in proton-proton collisions at a center-of-mass energy of 7 TeV is compared to the QCD prediction at next-to-next-to-leading order ... -
Differential cross section measurements for the production of a W boson in association with jets in proton-proton collisions at √s = 7 TeV
Baarmand, Marc M.; Hohlmann, Marcus; Kalakhety, H.; Yumiceva, Francisco X.; Khachatryan, Vardan; Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang; Bergauer, Thomas; Dragicevic, Marko (2014-12-05)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 ... -
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) -
Event activity dependence of υ(nS) production in √SNN = 5.02 TeV pPb and √s = 2.76 TeV pp collisions
Baarmand, Marc M.; Dorney, B.; Hohlmann, Marcus; Kalakhety, H.; Yumiceva, Francisco X.; Chatrchyan, S. A.; Khachatryan, Vladimir A.; Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang (2014-04-15)The production of υ(1S), υ(2S), and υ(3S) is investigated in pPb and pp collisions at centre-of-mass energies per nucleon pair of 5.02 TeV and 2.76 TeV, respectively. The datasets correspond to integrated luminosities of ... -
Evidence for Collective Multiparticle Correlations in p-Pb Collisions
Baarmand, Marc M.; Hohlmann, Marcus; Kalakhety, H.; Yumiceva, Francisco X.; Khachatryan, Vardan (2015-06-29)The second-order azimuthal anisotropy Fourier harmonics, v2, are obtained in p-Pb and PbPb collisions over a wide pseudorapidity (η) range based on correlations among six or more charged particles. The p-Pb data, corresponding ... -
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 ... -
Evidence for the 125 gev higgs boson decaying to a pair of τ leptons
Chatrchyan, S. A.; Khachatryan, Vardan; Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang; Baarmand, Marc M.; Dorney, B.; Hohlmann, Marcus; Kalakhety, H.; Yumiceva, Francisco X. (2014-05)A search for a standard model Higgs boson decaying into a pair of τ leptons is performed using events recorded by the CMS experiment at the LHC in 2011 and 2012. The dataset corresponds to an integrated luminosity of 4.9 ... -
Evidence for the 125 GeV Higgs boson decaying to a pair of τ leptons
Chatrchyan, S. A.; Khachatryan, Vardan; Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang; Baarmand, Marc M.; Hohlmann, Marcus; Kalakhety, H.; Yumiceva, Francisco X.; Bergauer, Thomas (2014-05)A search for a standard model Higgs boson decaying into a pair of τ leptons is performed using events recorded by the CMS experiment at the LHC in 2011 and 2012. The dataset corresponds to an integrated luminosity of 4.9 ... -
Evidence for transverse-momentum- and pseudorapidity-dependent event-plane fluctuations in PbPb and p Pb collisions
Khachatryan, Vardan; Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang; Bhopatkar, Vallary; Hohlmann, Marcus; Kalakhety, H.; Mareskas-Palcek, D.; Roy, Tuhin S.; Yumiceva, Francisco X. (2015-09-22)A systematic study of the factorization of long-range azimuthal two-particle correlations into a product of single-particle anisotropies is presented as a function of pT and η of both particles and as a function of the ... -
Evidence of b -jet quenching in PbPb collisions at sNN =2.76TeV
Chatrchyan, S. A.; Vardan, Khachatryan; Sirunyan, A. M.; Tumasyan, A. R.; Wolfgang, Adam; Baarmand, Marc M.; Dorney, B.; Hohlmann, Marcus; Kalakhety, H.; Yumiceva, Francisco X. (2014-09-22)The production of jets associated to bottom quarks is measured for the first time in PbPb collisions at a center-of-mass energy of 2.76 TeV per nucleon pair. Jet spectra are reported in the transverse momentum (pT) range ... -
Identification techniques for highly boosted W bosons that decay into hadrons
Baarmand, Marc M.; Hohlmann, Marcus; Kalakhety, H.; Yumiceva, Francisco X.; The CMS Collaboration; Khachatryan, Vardan; Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang; Bergauer, Thomas (2014-12-02)In searches for new physics in the energy regime of the LHC, it is becoming increasingly important to distinguish single-jet objects that originate from the merging of the decay products of W bosons produced with high ...