J. Mccartin

Measurement of the differential cross section for top quark pair production in pp collisions at $$\sqrt{s} = 8\,\text {TeV} $$ s = 8 TeV

V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam et autres

Measurements of the associated production of a Z boson and b jets in pp collisions at $${\sqrt{s}} = 8\,\text {TeV} $$ s = 8 TeV

V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam et autres

jets is investigated, and differential cross sections are measured for the dijet system. Results are compared to theoretical predictions, testing two different flavour schemes for the choice of initial-state partons.

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Pseudorapidity dependence of long-range two-particle correlations in pPb collisions at sNN=5.02 TeV

V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam et autres

Two-particle correlations in $p\mathrm{Pb}$ collisions at a nucleon-nucleon center-of-mass energy of $5.02\phantom{\rule{0.16em}{0ex}}\text{TeV}$ are studied as a function of the pseudorapidity separation ($\mathrm{\ensuremath{\Delta}}\ensuremath{\eta}$) of the particle pair at small relative azimuthal angle ($|\mathrm{\ensuremath{\Delta}}\ensuremath{\phi}|<\ensuremath{\pi}/3$). The correlations are decomposed into a jet component that dominates …

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Coherent J/ψ photoproduction in ultra-peripheral PbPb collisions at sNN=2.76TeV with the CMS experiment

V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam et autres

The cross section for coherent J / ψ photoproduction accompanied by at least one neutron on one side of the interaction point and no neutron activity on the other side, X n 0 n , is measured with the CMS experiment in …

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Measurement of the mass difference between top quark and antiquark in pp collisions at s=8 TeV

S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan et autres

The invariance of the standard model (SM) under the CPT transformation predicts equality of particle and antiparticle masses. This prediction is tested by measuring the mass difference between the top quark and antiquark ( Δ m t = m t − m …

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Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV

V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam et autres

Improved jet energy scale corrections, based on a data sample corresponding to an integrated luminosity of $19.7 fb^{-1}$ collected by the CMS experiment in proton-proton collisions at a center-of-mass energy of 8 TeV, are presented. The corrections as a function of pseudorapidity …

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Multiplicity and rapidity dependence of strange hadron production in pp, pPb, and PbPb collisions at the LHC

V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam et autres

Measurements of strange hadron ( K S 0 , Λ + Λ ‾ , and Ξ − + Ξ ‾ + ) transverse momentum spectra in p p , p Pb , and PbPb collisions are presented over a wide range of …

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Search for top squark pair production in compressed-mass-spectrum scenarios in proton–proton collisions at s=8 TeV using the αT variable

V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam et autres

An inclusive search is performed for supersymmetry in final states containing jets and an apparent imbalance in transverse momentum, p miss T , due to the production of unobserved weakly interacting particles in pp collisions at a centre-of-mass energy of 8 TeV.The …

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Search for top quark decays via Higgs-boson-mediated flavor-changing neutral currents in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV

V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam et autres

A search is performed for Higgs-boson-mediated flavor-changing neutral currents in the decays of top quarks.The search is based on proton-proton collision data corresponding to an integrated luminosity of 19.7 fb -1 at a center-of-mass energy of 8 TeV collected with the CMS …

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The CMS trigger system

V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam et autres

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 of proton-proton (heavy ion) collisions. …

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Search for Dark Matter and Supersymmetry with a Compressed Mass Spectrum in the Vector Boson Fusion Topology in Proton-Proton Collisions at s=8 TeV

V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam et autres

A first search for pair production of dark matter candidates through vector boson fusion in proton-proton collisions at sqrt[s]=8 TeV is performed with the CMS detector. The vector boson fusion topology enhances missing transverse momentum, providing a way to probe supersymmetry, even …

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Measurements of the $$\mathrm{t}\overline{\mathrm{t}}$$ t t ¯ production cross section in lepton+jets final states in pp collisions at 8 $$\,\text {TeV}$$ TeV and ratio of 8 to 7 $$\,\text {TeV}$$ TeV cross sections

V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam et autres

A measurement of the top quark pair production ([Formula: see text]) cross section in proton-proton collisions at the centre-of-mass energy of 8[Formula: see text] is presented using data collected with the CMS detector at the LHC, corresponding to an integrated luminosity of …

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