Quantitative analysis of the relation between entropy and nucleosynthesis in central Ca + Ca and Nb + Nb collisions

  • The final states of central Ca + Ca and Nb + Nb collisions at 400 and 1050 MeV/nucleon and at 400 and 650 MeV/nucleon, respectively, are studied with two independently developed statistical models, namely the classical microcanonical model and the quantum-statistical grand canonical model. It is shown that these models are in agreement with each other for these systems. Furthermore, it is demonstrated that there is essentially a one-to-one relationship between the observed relative abundances of the light fragments p, d, t, 3He, and α and the entropy per nucleon, for breakup temperatures greater than 30 MeV. Entropy values of 3.5–4 are deduced from high-multiplicity selected fragment yield data.

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Author:László Pal CsernaiORCiDGND, Joseph I. Kapusta, George I. Fai, Detlev Hahn, Jørgen RandrupORCiD, Horst StöckerORCiDGND
Parent Title (German):Physical review C
Document Type:Article
Date of Publication (online):2006/06/09
Year of first Publication:1987
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2006/06/09
PACS: 25.70.-z, 24.60.-k
Source:Physical Review C 35(4), 1297-1303 (1987), ©1987 The American Physical Society, http://link.aps.org/abstract/PRC/v35/p1297
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht