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Role of nuclear gluon distribution on particle production in heavy ion collisions

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arxiv 2012.05388 v2 pith:KONBCKIK submitted 2020-12-10 hep-ph

classification hep-ph
keywords collisionsdistributionnuclearproductionparticlegluonmodificationspectra
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

The transverse momentum spectra of hadrons is calculated from the unintegrated gluon distribution (UGD) within the $k_T$-factorization framework at small $x$. Starting from $pp$ collisions, the modification caused by the nuclear medium is incorporated in the UGD at high energies, which is related to the nuclear shadowing phenomenon. Moreover, we consider that particle production from minijet decaying is not enough to explain the $p_T$ spectra in $AA$ collisions due to collective phenomena that take place after the hard collision. The Boltzmann-Gibbs Blast Wave (BGBW) distribution is utilized in order to evaluate the distribution of particle production in equilibrium. Data from ALICE collaboration for $PbPb$ collisions at $\sqrt{s}=2.76$ TeV are analyzed and the nuclear modification factor for pion production is computed.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. OpenAlex reports about 423 citations worldwide. Full citation record

  1. Investigating QCD Dynamical Entropy in high-energy nuclear collisions

    hep-ph 2025-07 conditional novelty 4.0 of 10

    Using geometric scaling and Glauber-Gribov nuclear gluon distributions, the authors find that the QCD dynamical entropy in proton-nucleus collisions is essentially independent of the atomic mass number A, while the en...

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