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@INPROCEEDINGS{Jorge:354865,
author = {Jorge, Adrian William Romero and Bratkovskaya, Elena and
Song, Taesoo and Sagunski, Laura},
title = {{E}xploring {D}ark {P}hoton {P}roduction and {K}inetic
{M}ixing {C}onstraints in {H}eavy-{I}on {C}ollisions},
journal = {Astronomische Nachrichten},
issn = {1521-3994},
address = {Berlin},
publisher = {Wiley-VCH Verl.},
reportid = {GSI-2024-01298, arXiv:2412.02536},
pages = {e20240132},
year = {2025},
note = {"This is an open access article under the terms of the
Creative Commons Attribution License, which permits use,
distribution and reproduction in any medium, provided the
original work is properlycited."},
abstract = {Vector $U$-bosons, often referred to as 'dark photons', are
potential candidates for mediating dark matter interactions.
In this study, we outline a procedure to derive theoretical
constraints on the upper bound of the kinetic mixing
parameter $\epsilon^2(M_U)$ using dilepton data from
heavy-ion from SIS to RHIC energies. The analysis is based
on the microscopic Parton-Hadron-String Dynamics (PHSD)
transport model, which successfully reproduces the measured
dilepton spectra in $p+p$, $p+A$, and $A+A$ collisions.
Besides the dilepton channels resulting from interactions
and decays of Standard Model particles (such as mesons and
baryons), we extend the PHSD approach to include the decay
of hypothetical $U$-bosons into dileptons, $U \to e^+ e^-$.
The production of these $U$-bosons occurs via Dalitz decays
of pions, $\eta$-mesons, $\omega$-mesons, Delta resonances,
as well as from the decays of vector mesons and $K^+$
mesons. This analysis provides an upper limit on
$\epsilon^2(M_U)$ and offers insights into the accuracy
required for future experimental searches for dark photons
through dilepton experiments.},
month = {Sep},
date = {2024-09-02},
organization = {THE INTERNATIONAL WORKSHOP ON
ASTRONOMY AND RELATIVISTIC
ASTROPHYSICS, Machu Picchu Pueblo
(Peru), 2 Sep 2024 - 6 Sep 2024},
cin = {TES},
ddc = {520},
cid = {I:(DE-Ds200)TES-20160901OR397},
pnm = {612 - Cosmic Matter in the Laboratory (POF4-612) / DFG
project G:(GEPRIS)315477589 - TRR 211: Stark wechselwirkende
Materie unter extremen Bedingungen (315477589)},
pid = {G:(DE-HGF)POF4-612 / G:(GEPRIS)315477589},
experiment = {$EXP:(DE-Ds200)no_experiment-20200803$},
typ = {PUB:(DE-HGF)16 / PUB:(DE-HGF)8},
eprint = {2412.02536},
howpublished = {arXiv:2412.02536},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2412.02536;\%\%$},
UT = {WOS:001381107800001},
doi = {10.1002/asna.20240132},
url = {https://repository.gsi.de/record/354865},
}