Alpha clustering in warm and dense nuclear matter from heavy-ion collisions
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2025
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866909018734198784 |
|---|---|
| author | Wang, Rui Zhang, Zhen Ma, Yu-Gang Chen, Lie-Wen Ko, Che Ming Sun, Kai-Jia |
| author_facet | Wang, Rui Zhang, Zhen Ma, Yu-Gang Chen, Lie-Wen Ko, Che Ming Sun, Kai-Jia |
| contents | Although light nuclear clusters are known to affect the properties of warm and dilute nuclear matter, their role in warm and dense nuclear matter remains unclear due to the lack of experimental evidence for their modifications by the Mott effect in such an environment. To address this issue, we resort to intermediate-energy heavy-ion collisions, where light clusters are mainly produced in the transiently formed warm and dense matter. A kinetic approach, which includes dynamically the formation and dissociation of light clusters, is employed to deduce the strength of the Mott effects and the $α$-particle fraction in warm and dense nuclear matter from the light-nuclei yields measured by the FOPI Collaboration in central Au$+$Au collisions at energies of $0.25A$ to $0.6A~\rm GeV$. We find an unexpectedly abundant $α$ clustering in this environment, which will have profound implications for modeling the nuclear equation of state and describing supernovae and neutron star mergers. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_16613 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Alpha clustering in warm and dense nuclear matter from heavy-ion collisions Wang, Rui Zhang, Zhen Ma, Yu-Gang Chen, Lie-Wen Ko, Che Ming Sun, Kai-Jia Nuclear Theory High Energy Astrophysical Phenomena Nuclear Experiment Although light nuclear clusters are known to affect the properties of warm and dilute nuclear matter, their role in warm and dense nuclear matter remains unclear due to the lack of experimental evidence for their modifications by the Mott effect in such an environment. To address this issue, we resort to intermediate-energy heavy-ion collisions, where light clusters are mainly produced in the transiently formed warm and dense matter. A kinetic approach, which includes dynamically the formation and dissociation of light clusters, is employed to deduce the strength of the Mott effects and the $α$-particle fraction in warm and dense nuclear matter from the light-nuclei yields measured by the FOPI Collaboration in central Au$+$Au collisions at energies of $0.25A$ to $0.6A~\rm GeV$. We find an unexpectedly abundant $α$ clustering in this environment, which will have profound implications for modeling the nuclear equation of state and describing supernovae and neutron star mergers. |
| title | Alpha clustering in warm and dense nuclear matter from heavy-ion collisions |
| topic | Nuclear Theory High Energy Astrophysical Phenomena Nuclear Experiment |
| url | https://arxiv.org/abs/2507.16613 |