Serfling, V;
collaboration, ALADIN;
(1998)
Temperatures of Exploding Nuclei.
Physical Review Letters
, 80
(18)
3928 - 3931.
10.1103/PhysRevLett.80.3928.
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Abstract
Breakup temperatures in central collisions of 197Au + 197Au at bombarding energies E/A = 50 to 200 MeV were determined with two methods. Isotope temperatures, deduced from double ratios of hydrogen, helium, and lithium isotopic yields, increase monotonically with bombarding energy from 5 MeV to 12 MeV, in qualitative agreement with a scenario of chemical freeze-out after adiabatic expansion. Excited-state temperatures, derived from yield ratios of states in 4He, 5Li, 6Li, and 8Be, are about 5 MeV, independent of the projectile energy, and seem to reflect the internal temperature of fragments at their final separation from the system. PACS numbers: 25.70.Mn, 25.70.Pq, 25.75.-q
Type: | Article |
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Title: | Temperatures of Exploding Nuclei |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1103/PhysRevLett.80.3928 |
Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.80.3928 |
Language: | English |
Additional information: | © 1998 The American Physical Society 10 pages, RevTeX with 4 included figures; Also available from http://www-kp3.gsi.de/www/kp3/aladin_publications.html |
URI: | https://discovery.ucl.ac.uk/id/eprint/1374658 |
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