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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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Lenguaje: | eng |
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2018
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Acceso en línea: | https://dx.doi.org/10.1051/epjconf/201817118011 http://cds.cern.ch/record/2742582 |
_version_ | 1780968583992442880 |
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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 |