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Hard-Scattering Results in Heavy-Ion Collisions at the LHC
We present the first LHC results on hard-probe observables in heavy-ion collisions. During the first 3 years of operation, the ALICE, ATLAS, and CMS experiments each collected Pb + Pb interaction data, corresponding to an integrated luminosity above 100 μb^−1 at TeV. Fresh insights into the propert...
Autores principales: | , , |
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Lenguaje: | eng |
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2014
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1146/annurev-nucl-102912-144532 http://cds.cern.ch/record/2003220 |
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author | Norbeck, Edwin Šafařík, Karel Steinberg, Peter A |
author_facet | Norbeck, Edwin Šafařík, Karel Steinberg, Peter A |
author_sort | Norbeck, Edwin |
collection | CERN |
description | We present the first LHC results on hard-probe observables in heavy-ion collisions. During the first 3 years of operation, the ALICE, ATLAS, and CMS experiments each collected Pb + Pb interaction data, corresponding to an integrated luminosity above 100 μb^−1 at TeV. Fresh insights into the properties of QCD matter under extreme conditions are emerging. Although the basic picture established at RHIC—that of a hot, dense medium that (a) flows with a viscosity-to-entropy ratio close to the conjectured lower bound and (b) quenches the energy of hard probes, such as jets, heavy flavor, and quarkonia—has been confirmed at the LHC, the higher-energy data indicate new ways to extract its properties in more detail. These include the first observations of a different strength for the suppression of charm and beauty quarks, reduced low-p_T suppression for J/ψ, and detailed measurements of high-E_T jet suppression and jet-fragmentation modifications. |
id | oai-inspirehep.net-1338179 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2014 |
record_format | invenio |
spelling | oai-inspirehep.net-13381792019-09-30T06:29:59Zdoi:10.1146/annurev-nucl-102912-144532http://cds.cern.ch/record/2003220engNorbeck, EdwinŠafařík, KarelSteinberg, Peter AHard-Scattering Results in Heavy-Ion Collisions at the LHCParticle Physics - ExperimentWe present the first LHC results on hard-probe observables in heavy-ion collisions. During the first 3 years of operation, the ALICE, ATLAS, and CMS experiments each collected Pb + Pb interaction data, corresponding to an integrated luminosity above 100 μb^−1 at TeV. Fresh insights into the properties of QCD matter under extreme conditions are emerging. Although the basic picture established at RHIC—that of a hot, dense medium that (a) flows with a viscosity-to-entropy ratio close to the conjectured lower bound and (b) quenches the energy of hard probes, such as jets, heavy flavor, and quarkonia—has been confirmed at the LHC, the higher-energy data indicate new ways to extract its properties in more detail. These include the first observations of a different strength for the suppression of charm and beauty quarks, reduced low-p_T suppression for J/ψ, and detailed measurements of high-E_T jet suppression and jet-fragmentation modifications.oai:inspirehep.net:13381792014 |
spellingShingle | Particle Physics - Experiment Norbeck, Edwin Šafařík, Karel Steinberg, Peter A Hard-Scattering Results in Heavy-Ion Collisions at the LHC |
title | Hard-Scattering Results in Heavy-Ion Collisions at the LHC |
title_full | Hard-Scattering Results in Heavy-Ion Collisions at the LHC |
title_fullStr | Hard-Scattering Results in Heavy-Ion Collisions at the LHC |
title_full_unstemmed | Hard-Scattering Results in Heavy-Ion Collisions at the LHC |
title_short | Hard-Scattering Results in Heavy-Ion Collisions at the LHC |
title_sort | hard-scattering results in heavy-ion collisions at the lhc |
topic | Particle Physics - Experiment |
url | https://dx.doi.org/10.1146/annurev-nucl-102912-144532 http://cds.cern.ch/record/2003220 |
work_keys_str_mv | AT norbeckedwin hardscatteringresultsinheavyioncollisionsatthelhc AT safarikkarel hardscatteringresultsinheavyioncollisionsatthelhc AT steinbergpetera hardscatteringresultsinheavyioncollisionsatthelhc |