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Article Dans Une Revue Symmetry Année : 2024

Towards experimental confirmation of quarkonia melting in Quark Gluon Plasma: A review of recent measurements of quarkonia production in relativistic heavy-ion collisions

Kara R Mattioli
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Résumé

The dissociation, or “melting”, of heavy quarkonia states due to color charge screening is a predicted signature of the Quark Gluon Plasma (QGP) formation, with a quarkonium state predicted to dissociate when the temperature of the medium is higher than the binding energy of the quarkonium state. A conclusive experimental observation of quarkonium melting coupled with a detailed theoretical understanding of the melting mechanism would enable the use of quarkonia states as temperature probes of the QGP, a long-sought goal in the field of relativistic heavy-ion collisions. However, the interpretation of quarkonia suppression measurements in heavy-ion collisions is complicated by numerous other cold nuclear matter effects which also result in the dissociation of bound quarkonia states. A comprehensive understanding of these cold nuclear matter effects is therefore needed in order to correctly interpret quarkonia production measurements in heavy ion collisions and to observe the melting of quarkonium states experimentally. In this review, recent measurements of quarkonia production in $p$A and AA collisions and their state-of-the-art theoretical interpretations will be discussed, as well as the future measurements needed to further the knowledge of cold nuclear matter effects and realize a measurement of quarkonia melting in heavy ion collisions.
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Dates et versions

hal-04441033 , version 1 (06-02-2024)

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Kara R Mattioli. Towards experimental confirmation of quarkonia melting in Quark Gluon Plasma: A review of recent measurements of quarkonia production in relativistic heavy-ion collisions. Symmetry, 2024, 16 (2), pp.225. ⟨10.3390/sym16020225⟩. ⟨hal-04441033⟩
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