Development and Validation of Herwig 7 Tunes From Cms Underlying-Event Measurements
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Karapınar, Güler
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GOLD
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Yes
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107
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Abstract
This paper presents new sets of parameters (tunes) for the underlying-event model of the herwig 7 event generator. These parameters control the description of multiple-parton interactions (MPI) and colour reconnection in herwig 7, and are obtained from a fit to minimum-bias data collected by the CMS experiment at v s = 0.9, 7, and 13 TeV. The tunes are based on the NNPDF3.1 next-to-nextto-leading-order parton distribution function (PDF) set for the parton shower, and either a leading-order or next-to-nextto-leading-order PDF set for the simulation of MPI and the beam remnants. Predictions utilizing the tunes are produced for event shape observables in electron-positron collisions, and forminimum-bias, inclusive jet, top quark pair, and Zand Wboson events in proton-proton collisions, and are compared with data. Each of the new tunes describes the data at a reasonable level, and the tunes using a leading-order PDF for the simulation of MPI provide the best description of the data.
Description
Keywords
HERWIG 7, 13000 GeV-cms, High energy physics ; Experimental particle physics ; LHC ; CMS ; Hadron-Hadron scattering (experiments) ; Higgs physics ; p p: colliding beams ; Higgs particle: pair production ; bottom: 2 ; p p: scattering ; Higgs particle: coupling ; Higgs particle: hadroproduction ; Higgs particle: decay modes ; bottom: pair production ; photon: pair production ; top: pair production ; coupling: Yukawa ; coupling constant: upper limit ; vector boson: fusion ; mass spectrum: two-photon ; Standard model, parton: distribution function, QC770-798, SOFT, event shape analysis, Astrophysics, Atomic, HERWIG, High Energy Physics - Experiment, Higgs particle: hadroproduction, High Energy Physics - Experiment (hep-ex), Particle and Plasma Physics, vector boson: fusion, Hadron-Hadron scattering (experiments), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], info:eu-repo/classification/ddc/530, underlying event, Quantum Physics, High Energy Physics; Simulation; HERWIG tunes, higher-order: 0, CMS, Physics, ddc:530, higher-order: 2, perturbation theory: higher-order, Higgs physics, 320, Nuclear & Particles Physics, QB460-466, CERN LHC Coll, 7000 GeV-cms, CMS Collaboration, 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics, PARTICLE PHYSICS, LHC, Higgs particle: pair production, photon: pair production, top: pair production, numerical calculations: Monte Carlo, Higgs particle: decay modes, Standard model, p p: scattering, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], bottom: 2, Regular Article - Experimental Physics, FOS: Physical sciences, bottom: pair production, coupling constant: upper limit, Fizik, electron positron: annihilation, 530, parton: showers, Nuclear and particle physics. Atomic energy. Radioactivity, Nuclear, High Energy Physics, High energy physics, quantum chromodynamics: perturbation theory, ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика, 0206 Quantum Physics, Astrophysique, Higgs particle: coupling, 900 GeV-cms, generator, PARTICLE PHYSICS;LARGE HADRON COLLIDER;CMS, hep-ex, Molecular, LARGE HADRON COLLIDER, color, MODEL, Boson; Partons; Higgs Bosons, high energy physcis, Physics and Astronomy, 0202 Atomic, LHC, CMS, HERWIG 7, Experimental particle physics, p p: colliding beams, coupling: Yukawa, mass spectrum: two-photon, Hadron - hadron collision, experimental results
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01 natural sciences, 0103 physical sciences
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Volume
81
Issue
4
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