Measurement of Inclusive W and Z Boson Production Cross Sections in Pp Collisions at Root S=8 Tev
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Karapınar, Güler
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Abstract
A measurement of total and fiducial inclusive W and Z boson production cross sections in pp collisions at root s = 8 TeV is presented. Electron and muon final states are analyzed in a data sample collected with the CMS detector corresponding to an integrated luminosity of 18.2 +/- 0.5 pb(-1). The measured total inclusive cross sections times branching fractions are sigma(pp -> WX) x B(W -> l upsilon) = 12.21 +/- 0.03(stat) +/- 0.24(syst) +/- 0.32(lum) nb and sigma(pp -> ZX) x B(Z -> l(+)l(-)) = 1.15 +/- 0.01(stat) +/- 0.02(syst) +/- 0.03(lum) nb for the dilepton mass in the range of 60-120 GeV. The measured values agree with next-to-next-to-leading-order QCD cross section calculations. Ratios of cross sections are reported with a precision of 2%. This is the first measurement of inclusive W and Z boson production in proton-proton collisions at root s = 8 TeV.
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550, ENERGIES, YAN K-FACTOR; P(P)OVER-BAR COLLISIONS; PARTON DISTRIBUTIONS; LHC; ENERGIES, dilepton: mass, P(P)OVER-BAR COLLISIONS, cross section: ratio, Electrons; Mesons; Elementary Particles; Models, Theoretical; Nuclear Physics; Medicine (all); Physics and Astronomy (all), pp, Nuclear Physic, PARTICLE PHYSICS; LARGE HADRON COLLIDER; CMS, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Theoretical, Models, mass [dilepton], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Boson, info:eu-repo/classification/ddc/530, Fisica delle particelle, P(P)over-bar collisions, 8000 GeV-cms, W, [Anahtar Kelime Yok], Mesons, CMS, Physics, ddc:530, higher-order: 2, Meson, P(P)OVER-BAR collisions, hadroproduction [W], YAN K-factor, 2 [higher-order], channel cross section: branching ratio: measured, leptonic decay [vector boson], CERN LHC Coll, Physique des particules élémentaires, branching ratio: measured [channel cross section], p p --> Z0 anything, PARTICLE PHYSICS, Lhc, LHC, inclusive reaction [p p], physics, Particle Physics - Experiment, Elementary Particles, Z, perturbation theory [quantum chromodynamics], cms, Elementary Particle, FOS: Physical sciences, Electrons, Electrons; Mesons; Elementary Particles; Models, Theoretical; Nuclear Physics; Physics and Astronomy (all), p p: inclusive reaction, Electron, 530, P(p)over-bar Collisions, W: hadroproduction, Physics and Astronomy (all), hadroproduction [Z0], CMS; pp; W; Z; Boson; Production, Yan k-factor, YAN K-FACTOR, quantum chromodynamics: perturbation theory, Nuclear Physics, info:eu-repo/classification/ddc/550, Parton Distributions, Parton distributions, Production, Yan K-factor, Z0: hadroproduction, Models, Theoretical, LARGE HADRON COLLIDER, Energies, p p --> W anything, Parton distribution, vector boson: leptonic decay, PARTON DISTRIBUTIONS, QC Physics / fizika, ratio [cross section], experimental results
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01 natural sciences, 0103 physical sciences
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112
Issue
19
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