Burrello, S. and Colonna, M. and Wang, R. and Matera, F. (2025) Description of many-body correlations and clustering phenomena within a unified theoretical scheme. Il nuovo cimento C, 48 (2). pp. 1-9. ISSN 1826-9885
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Abstract
Nuclear matter at subsaturation densities is expected to be inhomogeneous due to the emergence of many-body correlations, which are crucial for constructing a reliable equation of state. Specifically, large-scale correlations are responsible for fragmentation processes, experimentally observed in heavy-ion collisions at intermediate energies as the result of mechanical (spinodal) instabilities driven by the mean field, in connection to the occurrence of a liquid-gas phase transition. On the other hand, even at lower densities, owing to residual few-body correlations, light clusters like deuterons and strongly bound α particles also form but dissolve with increasing density due to the Pauli principle. Phenomenological models that make use of energy density functionals offer a way to include these clusters as additional degrees of freedom, yet a consistent description of both light clusters and heavy fragment formation through spinodal instabilities is still lacking. In this work, we propose a novel approach to incorporate in-medium modified clusters within a non-relativistic kinetic framework, unifying the description of clustering phenomena and heavy fragment formation at low densities.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 18 Apr 2025 11:49 |
| Last Modified: | 18 Apr 2025 11:49 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/23547 |
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