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Production of protons and light nuclei in Au + Au collisions at √sNN = 3 GeV with the STAR detector

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We report the systematic measurement of protons and light nuclei production in Au +Au collisions at βˆšπ‘ π‘β’π‘=3GeV by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The transverse momentum (𝑝𝑇) spectra of protons (𝑝), deuterons (𝑑), tritons (𝑑), 3He, and 4He have been measured from m...

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Main Authors: Abdulhamid, Muhammad Ibrahim (Author) , Deppner, Ingo Martin (Author) , Herrmann, Norbert (Author) , Kisel, Ivan (Author) , Leung, Yue (Author) , Söhngen, Yannick (Author) , Weidenkaff, Philipp (Author)
Corporate Author: STAR Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 22 November, 2024
In: Physical review
Year: 2024, Volume: 110, Issue: 5
ISSN:2469-9993
DOI:10.1103/PhysRevC.110.054911
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevC.110.054911
Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevC.110.054911
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Author Notes:STAR Collaboration, M.I. Abdulhamid, I.M. Deppner, N. Herrmann, I. Kisel, Y.H. Leung, Y. Söhngen, P.C. Weidenkaff .... [und 360 weitere]
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Summary:We report the systematic measurement of protons and light nuclei production in Au +Au collisions at βˆšπ‘ π‘β’π‘=3GeV by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The transverse momentum (𝑝𝑇) spectra of protons (𝑝), deuterons (𝑑), tritons (𝑑), 3He, and 4He have been measured from midrapidity to target rapidity for different collision centralities. We present the rapidity and centrality dependence of particle yields (𝑑⁒𝑁/𝑑⁒𝑦), average transverse momentum (βŸ¨π‘π‘‡βŸ©), yield ratios (𝑑/𝑝, 𝑑/𝑝,3He/𝑝, 4He/𝑝), as well as the coalescence parameters (𝐡2, 𝐡3). The 4β’πœ‹ yields for various particles are determined by utilizing the measured rapidity distributions, 𝑑⁒𝑁/𝑑⁒𝑦. Furthermore, we present the energy, centrality, and rapidity dependence of the compound yield ratios (𝑁𝑝×𝑁𝑑/𝑁2𝑑) and compare them with various model calculations. The physics implications of these results on the production mechanism of light nuclei and the QCD phase structure are discussed.
Item Description:Gesehen am 24.02.2026
Im Titel steht "sNN" unter dem Wurzelsymbol, "NN" ist dabei tiefgestellt
Physical Description:Online Resource
ISSN:2469-9993
DOI:10.1103/PhysRevC.110.054911

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