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Main Authors: Stoecker, Horst, Satarov, Leonid M., Vovchenko, Volodymyr
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2603.24219
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author Stoecker, Horst
Satarov, Leonid M.
Vovchenko, Volodymyr
author_facet Stoecker, Horst
Satarov, Leonid M.
Vovchenko, Volodymyr
contents The STAR collaboration at RHIC and the ALICE collaboration at the LHC have reported dielectron spectra in the intermediate mass region, M = (1-3) GeV, which reveal a strikingly constant, energy-independent emission temperature $T_{IMR} \simeq 0.3~\textrm{GeV}$ over a broad range of collision energies, $\sqrt{s_{NN}} = 27 - 5020~\textrm{GeV}$. This unexpected ''thermostat'' behavior raises fundamental questions: why does the temperature remain constant despite increasing collision energy,and what mechanism governs this apparent universality?
format Preprint
id arxiv_https___arxiv_org_abs_2603_24219
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Why are the dilepton temperatures at the relativistic heavy-ion colliders are constant, T ~ 0.3 GeV?
Stoecker, Horst
Satarov, Leonid M.
Vovchenko, Volodymyr
High Energy Physics - Phenomenology
The STAR collaboration at RHIC and the ALICE collaboration at the LHC have reported dielectron spectra in the intermediate mass region, M = (1-3) GeV, which reveal a strikingly constant, energy-independent emission temperature $T_{IMR} \simeq 0.3~\textrm{GeV}$ over a broad range of collision energies, $\sqrt{s_{NN}} = 27 - 5020~\textrm{GeV}$. This unexpected ''thermostat'' behavior raises fundamental questions: why does the temperature remain constant despite increasing collision energy,and what mechanism governs this apparent universality?
title Why are the dilepton temperatures at the relativistic heavy-ion colliders are constant, T ~ 0.3 GeV?
topic High Energy Physics - Phenomenology
url https://arxiv.org/abs/2603.24219