Calibrating the Medium Effects of Light Clusters in Heavy-Ion Collisions
We propose a Bayesian inference estimation of in-medium modification of the cluster self-energies from light nuclei multiplicities measured in selected samples of central ^{136,124}Xe+^{124,112}Sn collisions with the INDRA apparatus. The data are interpreted with a relativistic quasiparticle cluster approach in the mean-field approximation without any prior assumption on the thermal parameters of the model. An excellent reproduction is obtained for H and He isotope multiplicities, and compatible posterior distributions are found for the unknown thermal parameters. We conclude that the cluster-σ-meson coupling is temperature dependent, becoming weaker when the temperature increases, in agreement with microscopic quantum statistical calculations. This implies a faster decrease of the light cluster abundances with temperature than previously estimated.
Authors
- A. Rebillard-Soulié
- D. Gruyer (ORCID: https://orcid.org/0000-0002-8924-0419)
- R. Bougault (ORCID: https://orcid.org/0000-0002-2866-7398)
- Tuhin Malik (ORCID: https://orcid.org/0000-0003-2633-5821)
- Helena Pais (ORCID: https://orcid.org/0000-0001-7247-1950)
- Tiago Custódio (ORCID: https://orcid.org/0000-0001-5620-6145)
- Constança Providência (ORCID: https://orcid.org/0000-0001-6464-8023)
- F. Gulminelli (ORCID: https://orcid.org/0000-0003-4354-2849)
Institutions
- Normandie Université (FR)
- Laboratoire de Physique Corpusculaire de Caen (FR)
- Institut National de Physique Nucléaire et de Physique des Particules (FR)
- University of Coimbra (PT)
- Université de Caen Normandie (FR)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2025-02-28
- DOI
- https://doi.org/10.1103/physrevlett.134.082304
- Citations
- 1
- Primary Topic
- High-Energy Particle Collisions Research
- Type
- article
- Field-Weighted Citation Impact
- 1.87
Funders
- Agence Nationale de la Recherche
- Région Normandie
- Fundação para a Ciência e a Tecnologia
- Institut National de Physique Nucléaire et de Physique des Particules