Nuclear level densities at high excitations

Autor:	Steven M. Grimes, M. G. Mustafa, Marshall Blann, A. V. Ignatyuk
Rok vydání:	1992
Předmět:	Nuclear reaction Physics Nuclear and High Energy Physics Range (particle radiation) Isotopes of neon Coulomb Particle Woods–Saxon potential Atomic physics Fermi gas Boltzmann equation
Zdroj:	Physical Review C. 45:1078-1083
ISSN:	1089-490X 0556-2813
DOI:	10.1103/physrevc.45.1078
Popis:	We calculate level densities for {sup 20}Ne, {sup 40}Ca, and {sup 100}Ru nuclei using unrestricted uniform, single particle levels (Fermi gas) and for realistic levels restricted to those bound by centripetal and Coulomb forces. For the latter we use single particle levels due to Seeger, and results for a Woods-Saxon model. We show that the Fermi gas formulas become completely inadequate at temperatures well within the range of those relevant to heavy-ion reaction studies. We discuss likely consequences of these discrepancies with respect to the likelihood of forming equilibrated nuclei at these temperatures, and discuss possible pitfalls of interpreting reactions at high excitations using unrestricted Fermi gas formulas.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4893e5d27d7ad24d1d6eba9fcec2480 https://doi.org/10.1103/physrevc.45.1078 Zobrazit plný text záznamu