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Low-mass dielectrons in pp, p–Pb and Pb–Pb collisions measured by the ALICE Experiment

Dielectrons produced in ultra-relativistic heavy-ion collisions at the LHC provide a unique probe of the system evolution as they are unperturbed by final-state interactions. The dielectron continuum is extremely rich in physics sources: on top of ordinary Dalitz and resonance decays of pseudoscalar...

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Autor principal: Vorobyev, Ivan
Lenguaje:eng
Publicado: 2018
Materias:
Acceso en línea:https://dx.doi.org/10.1051/epjconf/201817118011
http://cds.cern.ch/record/2742582
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author Vorobyev, Ivan
author_facet Vorobyev, Ivan
author_sort Vorobyev, Ivan
collection CERN
description Dielectrons produced in ultra-relativistic heavy-ion collisions at the LHC provide a unique probe of the system evolution as they are unperturbed by final-state interactions. The dielectron continuum is extremely rich in physics sources: on top of ordinary Dalitz and resonance decays of pseudoscalar and vector mesons, thermal black-body radiation is of particular interest as it carries information about the temperature of the hot and dense system created in such collisions. The dielectron invariant-mass distribution is furthermore sensitive to medium modifications of the spectral function of short-lived vector mesons that are linked to the potential restoration of chiral symmetry at high temperatures. Correlated electron pairs from semi-leptonic charm and beauty decays provide complementary information about the heavy-quark energy loss.
id oai-inspirehep.net-1796117
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2018
record_format invenio
spelling oai-inspirehep.net-17961172020-12-16T14:30:22Zdoi:10.1051/epjconf/201817118011http://cds.cern.ch/record/2742582engVorobyev, IvanLow-mass dielectrons in pp, p–Pb and Pb–Pb collisions measured by the ALICE ExperimentParticle Physics - ExperimentNuclear Physics - ExperimentDielectrons produced in ultra-relativistic heavy-ion collisions at the LHC provide a unique probe of the system evolution as they are unperturbed by final-state interactions. The dielectron continuum is extremely rich in physics sources: on top of ordinary Dalitz and resonance decays of pseudoscalar and vector mesons, thermal black-body radiation is of particular interest as it carries information about the temperature of the hot and dense system created in such collisions. The dielectron invariant-mass distribution is furthermore sensitive to medium modifications of the spectral function of short-lived vector mesons that are linked to the potential restoration of chiral symmetry at high temperatures. Correlated electron pairs from semi-leptonic charm and beauty decays provide complementary information about the heavy-quark energy loss.oai:inspirehep.net:17961172018
spellingShingle Particle Physics - Experiment
Nuclear Physics - Experiment
Vorobyev, Ivan
Low-mass dielectrons in pp, p–Pb and Pb–Pb collisions measured by the ALICE Experiment
title Low-mass dielectrons in pp, p–Pb and Pb–Pb collisions measured by the ALICE Experiment
title_full Low-mass dielectrons in pp, p–Pb and Pb–Pb collisions measured by the ALICE Experiment
title_fullStr Low-mass dielectrons in pp, p–Pb and Pb–Pb collisions measured by the ALICE Experiment
title_full_unstemmed Low-mass dielectrons in pp, p–Pb and Pb–Pb collisions measured by the ALICE Experiment
title_short Low-mass dielectrons in pp, p–Pb and Pb–Pb collisions measured by the ALICE Experiment
title_sort low-mass dielectrons in pp, p–pb and pb–pb collisions measured by the alice experiment
topic Particle Physics - Experiment
Nuclear Physics - Experiment
url https://dx.doi.org/10.1051/epjconf/201817118011
http://cds.cern.ch/record/2742582
work_keys_str_mv AT vorobyevivan lowmassdielectronsinppppbandpbpbcollisionsmeasuredbythealiceexperiment