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A new Microscopic Model for $J/\psi$ Production in Heavy Ion Collisions

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arxiv 2206.01308 v2 pith:63WDESJ2 submitted 2022-06-02 nucl-th

classification nucl-th
keywords collisionscreationheavymodeldescribedquarksallowsannihilation
verification ladder T0 review T1 audit T2 compute T3 formal

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abstract

We present a new model for the creation of \J mesons in ultrarelativistic heavy ion collisions, which allows to follow the individual heavy quarks from their creation until the detector through the Quark Gluon Plasma (QGP), which is formed in these collisions and described by the EPOS2 event generator. The \cc quarks interact via a potential, based on results of lattice gauge calculations. The annihilation and creation of \J is described by a density matrix approach whose time evolution is studied in the expanding system. The comparison with PbPb data at $\sqrt{s}$=5.02 TeV shows that this model can describe simultaneously the nuclear modification factor $R_{AA}$ and the elliptic flow $v_2$ of the \J at low transverse momen

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Automated NRQCD and NRQED simulations of quarkonium and leptonium production with P-wave states and physical-mass effects

    hep-ph 2026-07 conditional novelty 6.0 of 10

    MadSONS extends MadGraph to automated LO NRQCD/NRQED event generation for arbitrary S- and P-wave bound states, with dual-number projectors and physical-mass reshuffling.

  2. Melting of $c \bar c$ and $b \bar b$ pairs in the pre-equilibrium stage of proton-nucleus collisions at the Large Hadron Collider

    hep-ph 2024-12 conditional novelty 6.0 of 10

    Color decorrelation in the evolving glasma melts roughly half of initially singlet charm and bottom quark pairs within about 0.4 to 0.5 fm/c after their formation in proton-nucleus collisions at the LHC.

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