Measurement of the Differential Cross Section for Top Quark Pair Production in Pp Collisions at ?s=8tev
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Karapınar, Güler
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Abstract
The normalized differential cross section for top quark pair (t (t) over bar) production is measured in pp collisions at a centre-of-mass energy of 8 TeV at the CERN LHC using the CMS detector in data corresponding to an integrated luminosity of 19.7 fb(-1). The measurements are performed in the lepton+jets (e/mu+jets) and in the dilepton (e(+)e(-), mu(+)mu(-), and e(+/-)mu(-/+)) decay channels. The t (t) over bar cross section is measured as a function of the kinematic properties of the charged leptons, the jets associated to b quarks, the top quarks, and the t (t) over bar system. The data are compared with several predictions from perturbative quantum chromodynamic up to approximate next-to-next-to-leading-order precision. No significant deviations are observed relative to the standard model predictions.
Description
PubMed: 26640401
Keywords
Regular Article - Experimental Physics, Standard Model, Physics and Astronomy (miscellaneous), Engineering (miscellaneous), Physics and Astronomy (miscellaneous)., transverse momentum dependence, Atomic, 510, PARTICLE PHYSICS; LARGE HADRON COLLIDER; CMS, Physics, Particles & Fields, High Energy Physics - Experiment, rapidity dependence, ЭБ БГУ::ТЕХНИЧЕСКИЕ И ПРИКЛАДНЫЕ НАУКИ. ОТРАСЛИ ЭКОНОМИКИ::Ядерная техника, High Energy Physics - Experiment (hep-ex), Particle and Plasma Physics, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], info:eu-repo/classification/ddc/530, High energy physics ; Experimental particle physics ; LHC ; CMS ; Standard Model, 8000 GeV-cms, Quantum Physics, [Anahtar Kelime Yok], CMS, Physics, dilepton: final state, ddc:530, higher-order: 2, Particle and High Energy Physics, 001, Nuclear and Plasma Physics, Nuclear & Particles Physics, CERN LHC Coll, Particle and high energy physics, kinematics, CMS Collaboration, Physical Sciences, Physique des particules élémentaires, PARTICLE PHYSICS, LHC, top: pair production, physics, p p: scattering, CERN Lab, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], cms, Particles & Fields, final state: ((n)jet lepton), FOS: Physical sciences, 530, differential cross section: measured, 0202 Atomic, Molecular, Nuclear, Particle And Plasma Physics, Nuclear, molecular and optical physics, High energy physics, quantum chromodynamics: perturbation theory, p p --> 2top anything, Engineering (miscellaneous); Physics and Astronomy (miscellaneous), ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика, 0206 Quantum Physics, Engineering (miscellaneous), Science & Technology, hep-ex, Physics and Astronomy (miscellaneous); Engineering (miscellaneous), FISICA DELLE PARTICELLE, Molecular, cross section: measured, LARGE HADRON COLLIDER, High Energy Physics - Experiment; High Energy Physics - Experiment, Physics and Astronomy, QC Physics / fizika, 0202 Atomic, Particle And Plasma Physics, Astronomical sciences, p p --> 2top anything, Experimental particle physics, p p: colliding beams, experimental results
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0103 physical sciences, 01 natural sciences, 06 humanities and the arts, 0105 earth and related environmental sciences, 0604 arts
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11
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