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Identified charged hadron production in Au + Au collisions at s N N = 54.4 GeV with the STAR detector
Resource type
Authors/contributors
- STAR Collaboration (Author)
- Finch, Evan (Contributor)
Title
Identified charged hadron production in Au + Au collisions at s N N = 54.4 GeV with the STAR detector
Abstract
We present results on the production of $π^{\pm}$, $K^{\pm}$, $p$, and $\bar{p}$ in Au+Au collisions at $\sqrt{s_\mathrm{NN}}$ = 54.4~GeV using the STAR detector at RHIC, at midrapidity ($|y| <$ 0.1). Invariant yields of these particles as a function of transverse momentum are shown. We determine bulk properties such as integrated particle yields ($dN/dy$), mean transverse momentum ($\langle p_{T} \rangle$), particle ratios, which provide insight into the particle production mechanisms. Additionally, the kinetic freezeout parameters ($T_\text{kin}$ and $\langle β_{T} \rangle$), which provide information about the dynamics of the system at the time of freezeout, are obtained. The Bjorken energy density ($ε_{\rm{BJ}}$), which gives an estimate of the energy density in the central rapidity region of the collision zone at the formation time $τ$, is calculated and presented as a function of multiplicity for various energies. The results are compared with those from the models such as A Multi-Phase Transport (AMPT) and Heavy Ion Jet INteraction Generator (HIJING) for further insights.
Publication
Physical review. C
Publisher
American Physical Society
Date
2026-03-09
Volume
113
Issue
5
Citation Key
aboonaIdentifiedChargedHadron2026
ISSN
2469-9985
Language
en
Citation
STAR Collaboration. (2026). Identified charged hadron production in Au + Au collisions at s N N = 54.4 GeV with the STAR detector. Physical Review. C, 113(5). https://doi.org/10.1103/4161-dflc
Department
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