Observation of Top Quark Production in Proton-Nucleus Collisions
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Date
2017
Authors
Karapınar, Güler
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Open Access Color
HYBRID
Green Open Access
Yes
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22
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38
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Yes
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Abstract
The first observation of top quark production in proton-nucleus collisions is reported using proton-lead data collected by the CMS experiment at the CERN LHC at a nucleon-nucleon center-of-mass energy of sNN=8.16 TeV. The measurement is performed using events with exactly one isolated electron or muon candidate and at least four jets. The data sample corresponds to an integrated luminosity of 174 nb-1. The significance of the tt signal against the background-only hypothesis is above 5 standard deviations. The measured cross section is σtt=45±8 nb, consistent with predictions from perturbative quantum chromodynamics.
Description
Keywords
Large Hadron Collider (LHC), Compact Muon Solenoid, Nuclear reactions, Quantum theory, High energy physics, electron, Compact Muon Solenoid, Standard Model, 550, Large Hadron Collider (LHC), nucl-ex, TOP QUARK; PPB COLLISIONS; LHC; CMS EXPERIMENT;, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), nucleon nucleon, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], LHC, CMS, top, Nuclear Experiment (nucl-ex), Nuclear Experiment, Multidisciplinary, 02 Physical Sciences, CMS, Physics, top: production, 8160 GeV-cms/nucleon, PPB COLLISIONS, 3100 General Physics and Astronomy, Physical sciences, CERN LHC Coll, Q1 Science (General) / természettudomány általában, Physical Sciences, CMS Collaboration, Physique des particules élémentaires, High energy physics, Experimental particle physics, LHC, CMS, Standard Model, Centre for High Energy Physics, PARTICLE PHYSICS, Nuclear reactions, LHC, jet: bottom, Boson Production; PPB Collisions, ddc:620, General Physics, CERN Lab, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 530 Physics, [PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], Physics, Multidisciplinary, FOS: Physical sciences, 10192 Physics Institute, Fizik, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 530, Physics and Astronomy (all), muon, quantum chromodynamics, BOSON PRODUCTION; PPB COLLISIONS; LHC; TEV, High energy physics, p nucleus: scattering, ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика, Engineering & allied operations, BOSON PRODUCTION, info:eu-repo/classification/ddc/550, Science & Technology, PARTICLE PHYSICS;LARGE HADRON COLLIDER;CMS, hep-ex, LHC, top quark, proton-nucleus, cross section: measured, LARGE HADRON COLLIDER, 620, Physics and Astronomy, Quantum theory, TEV, p nucleus, BOSON PRODUCTION, PPB COLLISIONS, LHC, TEV., Experimental particle physics, info:eu-repo/classification/ddc/620, experimental results
Fields of Science
01 natural sciences, 0103 physical sciences
Citation
Sirunyan, A.M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer,T., Brandstetter, J.,...CMS Collaboration (2017). Observation of top quark production in proton-nucleus collisions. Physical Review Letters, 119(24). doi:10.1103/PhysRevLett.119.242001
WoS Q
Q1
Scopus Q
Q1
Source
Physical Review Letters
Volume
119
Issue
24
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End Page
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