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Recent quarkonium measurements with ALICE
Quarkonium production is one of the essential probes for studying the properties of the quark-gluon plasma (QGP) created in relativistic heavy-ion collisions. The suppression of J/ψ due to color screening in the medium was initially proposed as direct evidence of QGP formation. The J/ψ in heavy-ion...
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Lenguaje: | eng |
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2022
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Acceso en línea: | https://dx.doi.org/10.1016/j.nuclphysbps.2022.09.005 http://cds.cern.ch/record/2859848 |
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author | Bai, Xiaozhi |
author_facet | Bai, Xiaozhi |
author_sort | Bai, Xiaozhi |
collection | CERN |
description | Quarkonium production is one of the essential probes for studying the properties of the quark-gluon plasma (QGP) created in relativistic heavy-ion collisions. The suppression of J/ψ due to color screening in the medium was initially proposed as direct evidence of QGP formation. The J/ψ in heavy-ion collisions is affected by the (re-)generation of uncorrelated charm-anticharm (cc‾) quark pairs in the medium as well as the underlying cold nuclear matter effects. The heavier quarkonium states ϒ, the re-(generated) effect is found significantly smaller than J/ψ since the density of uncorrelated beauty-antibeauty (bb‾) quark pairs in the medium is much smaller than cc‾ pairs. Both the J/ψ and ϒ can be used as the probes to study the quark mass dependent (re-)generation effect. In this contribution, the recent measurements of J/ψ and ϒ production in various collision systems performed by the ALICE are shown. The measured quarkonium production cross-section, the nuclear modification factor RpA, RAA, and the flow coefficient v2 are discussed. Results are compared with the model calculations. |
id | cern-2859848 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2022 |
record_format | invenio |
spelling | cern-28598482023-06-06T09:31:40Zdoi:10.1016/j.nuclphysbps.2022.09.005http://cds.cern.ch/record/2859848engBai, XiaozhiRecent quarkonium measurements with ALICEParticle Physics - ExperimentQuarkonium production is one of the essential probes for studying the properties of the quark-gluon plasma (QGP) created in relativistic heavy-ion collisions. The suppression of J/ψ due to color screening in the medium was initially proposed as direct evidence of QGP formation. The J/ψ in heavy-ion collisions is affected by the (re-)generation of uncorrelated charm-anticharm (cc‾) quark pairs in the medium as well as the underlying cold nuclear matter effects. The heavier quarkonium states ϒ, the re-(generated) effect is found significantly smaller than J/ψ since the density of uncorrelated beauty-antibeauty (bb‾) quark pairs in the medium is much smaller than cc‾ pairs. Both the J/ψ and ϒ can be used as the probes to study the quark mass dependent (re-)generation effect. In this contribution, the recent measurements of J/ψ and ϒ production in various collision systems performed by the ALICE are shown. The measured quarkonium production cross-section, the nuclear modification factor RpA, RAA, and the flow coefficient v2 are discussed. Results are compared with the model calculations.oai:cds.cern.ch:28598482022 |
spellingShingle | Particle Physics - Experiment Bai, Xiaozhi Recent quarkonium measurements with ALICE |
title | Recent quarkonium measurements with ALICE |
title_full | Recent quarkonium measurements with ALICE |
title_fullStr | Recent quarkonium measurements with ALICE |
title_full_unstemmed | Recent quarkonium measurements with ALICE |
title_short | Recent quarkonium measurements with ALICE |
title_sort | recent quarkonium measurements with alice |
topic | Particle Physics - Experiment |
url | https://dx.doi.org/10.1016/j.nuclphysbps.2022.09.005 http://cds.cern.ch/record/2859848 |
work_keys_str_mv | AT baixiaozhi recentquarkoniummeasurementswithalice |