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High Energy Physics - Phenomenology

arXiv:2308.10739 (hep-ph)
[Submitted on 21 Aug 2023 (v1), last revised 19 Sep 2024 (this version, v4)]

Title:A TMD-based model for Hadronization off heavy nuclei

Authors:Raphaël Dupré, Federico Ceccopieri
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Abstract:Semi-inclusive deep inelastic scattering off nuclei is a unique process to study the parton propagation mechanism and its modification induced by the presence of the nuclear medium. It allows us to probe the medium properties, particularly the cold nuclear matter transport coefficient, which can be directly linked to the nuclear gluon density. We present here a model for hadron production in deep inelastic lepton-nucleus scattering, which takes into account the hadronic transverse momentum of final state particles via transverse-momentum dependent (TMD) parton distributions and fragmentation functions. We implement parton energy loss and hadronic absorption with a geometrical model of the nucleus. The model is compared with the nuclear SIDIS multiplicity ratios and transverse-momentum broadening data from the CLAS, HERMES, and EMC collaborations, aiming for a simultaneous description of these data sets. We obtain a good agreement over the various nuclear targets and the wide kinematical range of those experiments. We best describe the data with a transport coefficient \hat{q} = 0.3 GeV/fm^2, and we highlight the importance and the role of correlations in extracting this quantity.
Comments: 22 pages, 8 figures
Subjects: High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:2308.10739 [hep-ph]
  (or arXiv:2308.10739v4 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.2308.10739

Submission history

From: Raphaël Dupré [view email]
[v1] Mon, 21 Aug 2023 14:08:35 UTC (663 KB)
[v2] Tue, 29 Aug 2023 09:18:14 UTC (710 KB)
[v3] Tue, 21 May 2024 12:24:53 UTC (792 KB)
[v4] Thu, 19 Sep 2024 12:32:40 UTC (397 KB)
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