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Unveiling the dynamics of little-bang nucleosynthesis

Author

Listed:
  • Kai-Jia Sun

    (Fudan University
    NSFC and Fudan University)

  • Rui Wang

    (Fudan University
    Chinese Academy of Sciences)

  • Che Ming Ko

    (Texas A&M University)

  • Yu-Gang Ma

    (Fudan University
    NSFC and Fudan University)

  • Chun Shen

    (Wayne State University
    Brookhaven National Laboratory)

Abstract

High-energy nuclear collisions provide a unique site for the synthesis of both nuclei and antinuclei at temperatures of kT ≈ 100 − 150 MeV. In these little bangs of transient collisions, a quark-gluon plasma (QGP) of nearly vanishing viscosity is created, which is believed to have existed in the early universe within the first few microseconds after the Big Bang. Analyses of identified particles produced in these little bangs based on the statistical hadronization model for the QGP have suggested that light (anti)nuclei are produced from the QGP as other hadrons and their abundances are little affected by later hadronic dynamics. Here, we find a strong reduction of the triton yield by about a factor of 1.8 in high-energy heavy-ion collisions based on a kinetic approach that includes the effects of hadronic re-scatterings, particularly that due to pion-catalyzed multi-body reactions. This finding is supported by the latest experimental measurements and thus unveils the important role of hadronic dynamics in the little-bang nucleosynthesis.

Suggested Citation

  • Kai-Jia Sun & Rui Wang & Che Ming Ko & Yu-Gang Ma & Chun Shen, 2024. "Unveiling the dynamics of little-bang nucleosynthesis," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-45474-x
    DOI: 10.1038/s41467-024-45474-x
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    References listed on IDEAS

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    1. Anton Andronic & Peter Braun-Munzinger & Krzysztof Redlich & Johanna Stachel, 2018. "Decoding the phase structure of QCD via particle production at high energy," Nature, Nature, vol. 561(7723), pages 321-330, September.
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