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@ARTICLE{Gaebel:245687,
author = {Gaebel, Vincent and Bonne, Michel and Reichert, Tom and
Burnic, Ajdin and Hillmann, Paula and Bleicher, Marcus},
title = {{U}nderstanding the energy dependence of ${B}_2$ in heavy
ion collisions: interplay of volume and space-momentum
correlations},
journal = {The European physical journal / A},
volume = {57},
number = {2},
issn = {1434-601X},
address = {Heidelberg},
publisher = {Springer},
reportid = {GSI-2022-00027, arXiv:2006.12951},
pages = {55},
year = {2021},
note = {6 pages, 6 figuresThis work was supported by the Deutscher
AkademischerAustauschdienst (DAAD), HIC for FAIR and in the
frame-work of COST Action CA15213 THOR. The computa-tional
resources were provided by the Center for
ScientificComputing (CSC) of the Goethe University
Frankfurt."This article is licensed under a Creative Commons
Attribution 4.0 International License, which permits use,
sharing, adaptation, distribution and reproduction in any
medium or format, as long as you give appropriate credit to
the original author(s) and the source, provide a link to the
Creative Commons licence, and indicate if changes were made.
The images or other third party material in this article are
included in the article’s Creative Commons licence, unless
indicated otherwise in a credit line to the material. If
material is not included in the article’s Creative Commons
licence and your intended use is not permitted by statutory
regulation or exceeds the permitted use, you will need to
obtain permission directly from the copyright holder. To
view a copy of this licence, visit
http://creativecommons.org/licenses/by/4.0/."},
abstract = {The deuteron coalescence parameter $B_2$ in proton+proton
and nucleus+nucleus collisions in the energy range of
$\sqrt{s_{NN}}=$ 900 - 7000 GeV for proton+proton and
$\sqrt{s_{NN}}=$ 2 - 2760 GeV for nucleus+nucleus collisions
is analyzed with the Ultrarelativistic Quantum Molecular
Dynamics (UrQMD) transport model, supplemented by an
event-by-event phase space coalescence model for deuteron
and anti-deuteron production. The results are compared to
data by the E866, E877, PHENIX, STAR and ALICE experiments.
The $B_2$ values are calculated from the final spectra of
protons and deuterons. At lower energies, $\sqrt{s_{NN}}\leq
20$ GeV, $B_2$ drops drastically with increasing energy. The
calculations confirm that this is due to the increasing
freeze-out volume reflected in $B_2\sim 1/V$. At higher
energies, $\sqrt{s_{NN}}\geq 20$ GeV, $B_2$ saturates at a
constant level. This qualitative change and the vanishing of
the volume suppression is shown to be due to the development
of strong radial flow with increasing energy. The flow leads
to strong space-momentum correlations which counteract the
volume effect.},
cin = {TES / FHF},
ddc = {530},
cid = {I:(DE-Ds200)TES-20160901OR397 /
I:(DE-Ds200)FHF-20200605OR451},
pnm = {612 - Cosmic Matter in the Laboratory (POF4-612) / Physics
of hot and dense matter - Theory (HFHF project)
(I:(DE-Ds200)HFHF-HI-Th) / SUC-GSI-Frankfurt - Strategic
university cooperation GSI-U Frankfurt/M (SUC-GSI-FR)},
pid = {G:(DE-HGF)POF4-612 / I:(DE-Ds200)HFHF-HI-Th /
G:(DE-Ds200)SUC-GSI-FR},
experiment = {$EXP:(DE-Ds200)no_experiment-20200803$},
typ = {PUB:(DE-HGF)16},
eprint = {2006.12951},
howpublished = {arXiv:2006.12951},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2006.12951;\%\%$},
UT = {WOS:000617737200002},
doi = {10.1140/epja/s10050-020-00307-5},
url = {https://repository.gsi.de/record/245687},
}