Browsing by Author "Işıldak, Bora"
Now showing items 301-320 of 931
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Measurement of the tt¯ production cross section in the dilepton channel in pp collisions at s√ = 8 TeV
Chatrchyan, S.; Işıldak, Bora (Springer Science+Business Media, 2014-02)The top-antitop quark (t¯t) production cross section is measured in protonproton collisions at √s = 8 TeV with the CMS experiment at the LHC, using a data sample corresponding to an integrated luminosity of 5.3 fb−1. The ... -
Measurement of the tt¯ production cross section using events with one lepton and at least one jet in pp collisions at √s=13 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer International Publishing, 2017-09-13)A measurement of the tt¯tt¯ production cross section at s√=13s=13 TeV is presented using proton-proton collisions, corresponding to an integrated luminosity of 2.2 fb−1, collected with the CMS detector at the LHC. ... -
Measurement of the tt¯ production cross section, the top quark mass, and the strong coupling constant using dilepton events in pp collisions at s√ = 13TeV
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2019-04-29)A measurement of the top quark-antiquark pair production cross section sigma(t (t) over bar) in proton-proton collisions at a centre-of-mass energy of 13 TeV is presented. The data correspond to an integrated luminosity ... -
Measurement of the tt‾bb‾ production cross section in the all-jet final state in pp collisions at √s=13 TeV
Sirunyan, A. M.; Işıldak, Bora (Elsevier, 2020-04-10)A measurement of the production cross section of top quark pairs in association with two b jets (t (t) over barb (b) over bar) is presented using data collected in proton-proton collisions at root s=13 TeV by the CMS ... -
Measurement of the t̄t production cross section in the all-jet final state in pp collisions at √s=7 TeV
Chatrchyan, S.; Işıldak, Bora (Springer Nature, 2013)A measurement is presented of the t̄t production cross section σt̄t in proton-proton collisions at a centre-of-mass energy of 7 TeV, in the all-jet final state that contains at least six jets, two of which are tagged as ... -
Measurement of the underlying event activity using charged-particle jets in proton-proton collisions at √s=2.76 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2015-09)A measurement of the underlying event (UE) activity in proton-proton collisions is performed using events with charged-particle jets produced in the central pseudorapidity region (|η jet| < 2) and with transverse momentum ... -
Measurement of the W boson helicity fractions in the decays of top quark pairs to lepton plus jets final states produced in pp collisions at root s=8 TeV
Khachatryan, V.; Işıldak, Bora (Elsevier, 2016)The W boson helicity fractions from top quark decays in t (t) over bar events are measured using data from proton-proton collisions at a centre-of-mass energy of 8 TeV. The data were collected in 2012 with the CMS detector ... -
Measurement of the W boson helicity in events with a single reconstructed top quark in pp collisions at √s = 8 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2015-01)A measurement of the W boson helicity is presented, where the W boson originates from the decay of a top quark produced in pp collisions. The event selection, optimized for reconstructing a single top quark in the final ... -
Measurement of the W gamma and Z gamma inclusive cross sections in pp collisions at root s=7 TeV and limits on anomalous triple gauge boson couplings
Chatrchyan, S.; Işıldak, Bora (American Physical Society, 2014-05-01)Measurements of W gamma and Z gamma production in proton-proton collisions at root s = 7 TeV are used to extract limits on anomalous triple gauge couplings. The results are based on data recorded by the CMS experiment at ... -
Measurement of the W+W- and ZZ production cross sections in pp collisions at root s=8 TeV
Chatrchyan, S.; Işıldak, Bora (Elsevier, 2013-04-25)The W+W- and ZZ production cross sections are measured in proton-proton collisions at root s = 8 TeV with the CMS experiment at the LHC in data samples corresponding to an integrated luminosity of up to 5.3 fb(-1). The ... -
Measurement of the W+W- cross section in pp collisions at and limits on anomalous WW gamma and WWZ couplings
Chatrchyan, S.; Işıldak, Bora (Springer Science+Business Media, 2013-10)A measurement of W+W- production in pp collisions at is presented. The data were collected with the CMS detector at the LHC, and correspond to an integrated luminosity of 4.92 +/- 0.11 fb(-1). The W+W- candidates consist ... -
Measurement of the W+W- cross section in pp collisions at root s=8 TeV and limits on anomalous gauge couplings
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2016-07)A measurement of the W boson pair production cross section in proton-proton collisions at root s = 8TeV is presented. The data collected with the CMS detector at the LHC correspond to an integrated luminosity of 19.4 fb(-1). ... -
Measurement of the W-boson helicity in top-quark decays from t(t)over-bar production in lepton plus jets events in pp collisions at root s=7 TeV
Chatrchyan, S.; Işıldak, Bora (Springer Science+Business Media, 2013-10)The W-boson helicity fractions in top-quark decays are measured with TeX events in the lepton+jets final state, using proton-proton collisions at a centre-of-mass energy of 7 TeV, collected in 2011 with the CMS detector ... -
Measurement of the weak mixing angle using the forward–backward asymmetry of Drell–Yan events in p p collisions at 8 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2018-09)A measurement is presented of the effective leptonic weak mixing angle (sin2θeffℓ) using the forward–backward asymmetry of Drell–Yan lepton pairs (μμ and e e) produced in proton–proton collisions at s=8TeV at the CMS ... -
Measurement of the WZ production cross section in pp collisions at root s=7 and 8 TeV and search for anomalous triple gauge couplings at root s=8 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2017)The WZ production cross section is measured by the CMS experiment at the CERN LHC in proton proton collision data samples corresponding to integrated luminosities of 4.9 fb(-1) collected at root s = 7 TeV, and 19.6fb(-1) ... -
Measurement of the Wγ production cross section in proton-proton collisions at √ s = 13 TeV and constraints on effective field theory coefficients
Sirunyan, A. M.; Işıldak, Bora (American Physical Society, 2021-06-25)A fiducial cross section for Wγ production in proton-proton collisions is measured at a center-of-mass energy of 13 TeV in 137 fb-1 of data collected using the CMS detector at the LHC. The W→eν and μν decay modes are used ... -
Measurement of the X(3872) production cross section via decays to J/psi pi(+)pi(-) in pp collisions at root s=7 TeV
Chatrchyan, S.; Işıldak, Bora (Springer Science+Business Media, 2013-04)The production of the X(3872) is studied in pp collisions at root s = 7TeV, using decays to J/psi pi(+)pi(-), where the J/psi decays to two muons. The data were recorded by the CMS experiment and correspond to an integrated ... -
Measurement of the Y(1S) pair production cross section and search for resonances decaying to Y(1S)μ+μ−in proton-proton collisions at √s=13 TeV
Sirunyan, A. M.; Işıldak, Bora (Elsevier, 2020-09-10)The fiducial cross section for Y(1S) pair production in proton-proton collisions at a center-of-mass energy of 13TeVin the region where both Y(1S) mesons have an absolute rapidity below 2.0 is measured to be 79 +/- 11 ... -
Measurement of the Z boson differential cross section in transverse momentum and rapidity in proton-proton collisions at 8 TeV
Khachatryan, V.; Işıldak, Bora (Elsevier, 2015-10-07)We present a measurement of the Z boson differential cross section in rapidity and transverse momentum using a data sample of pp collision events at a centre-of-mass energy View the MathML source, corresponding to an ... -
Measurement of the Z boson differential production cross section using its invisible decay mode (Z → νν¯) in proton-proton collisions at √s = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer, 2021-05-21)Measurements of the total and differential fiducial cross sections for the Z boson decaying into two neutrinos are presented at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV. The data were collected ...
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