Nuclear clustering process in heavy-ion collisions : experimental constraints on the low-temperature region of the QCD phase diagram
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2025
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| author | Bonnet, E. Borderie, B. Bougault, R. Chbihi, A. Fable, Q. Frankland, J. D. Gruyer, D. La Commara, M. Fèvre, A. Le Neindre, N. Le Lombardo, I. Łukasik, J. Pârlog, M. Verde, G. Wieleczko, J. P. |
| author_facet | Bonnet, E. Borderie, B. Bougault, R. Chbihi, A. Fable, Q. Frankland, J. D. Gruyer, D. La Commara, M. Fèvre, A. Le Neindre, N. Le Lombardo, I. Łukasik, J. Pârlog, M. Verde, G. Wieleczko, J. P. |
| contents | In this article, we study the production of Hydrogen and Helium isotopes in heavy-ion collisions in the incident energy range between 80 and 150 MeV/nucleon. We compare their inclusive multiplicities emitted in the transverse plane of the reaction with the predictions given by the thermal model. As a first step, we validate the choice of this approach to describe the experimental measurements. We also show that the transient states have to be explicitly taken into account for a good statistical description of the experimental multiplicities. From the thermodynamical parameter values obtained we complete the existing database built with the use of thermal-statistical models to reproduce particle production in the (ultra-)relativistic-energy measurements. We then proposed a new constraint on the so-called freeze-out region in the temperature (T) versus baryonic chemical potential (muB) phase diagram of the quantum chromodynamics. These new results indicate that there is a common framework to describe the hadron production and nuclear clustering processes in heavy-ion collisions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_23809 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Nuclear clustering process in heavy-ion collisions : experimental constraints on the low-temperature region of the QCD phase diagram Bonnet, E. Borderie, B. Bougault, R. Chbihi, A. Fable, Q. Frankland, J. D. Gruyer, D. La Commara, M. Fèvre, A. Le Neindre, N. Le Lombardo, I. Łukasik, J. Pârlog, M. Verde, G. Wieleczko, J. P. Nuclear Theory High Energy Physics - Phenomenology Nuclear Experiment In this article, we study the production of Hydrogen and Helium isotopes in heavy-ion collisions in the incident energy range between 80 and 150 MeV/nucleon. We compare their inclusive multiplicities emitted in the transverse plane of the reaction with the predictions given by the thermal model. As a first step, we validate the choice of this approach to describe the experimental measurements. We also show that the transient states have to be explicitly taken into account for a good statistical description of the experimental multiplicities. From the thermodynamical parameter values obtained we complete the existing database built with the use of thermal-statistical models to reproduce particle production in the (ultra-)relativistic-energy measurements. We then proposed a new constraint on the so-called freeze-out region in the temperature (T) versus baryonic chemical potential (muB) phase diagram of the quantum chromodynamics. These new results indicate that there is a common framework to describe the hadron production and nuclear clustering processes in heavy-ion collisions. |
| title | Nuclear clustering process in heavy-ion collisions : experimental constraints on the low-temperature region of the QCD phase diagram |
| topic | Nuclear Theory High Energy Physics - Phenomenology Nuclear Experiment |
| url | https://arxiv.org/abs/2503.23809 |