Evidence for Thermal Equilibration in Multifragmentation Reactions Probed with Bremsstrahlung Photons
Journal Article
·
· Physical Review Letters
- and others
The production of nuclear bremsstrahlung photons (E{sub {gamma}}>30 MeV) has been studied in inclusive and exclusive measurements in four heavy-ion reactions at 60A MeV . The measured photon spectra, angular distributions, and multiplicities indicate that a significant fraction of the hard photons is emitted in secondary nucleon-nucleon collisions from a thermally equilibrated system. The observation of the thermal component in multifragment {sup 36}Ar+{sup 197}Au reactions suggests that the breakup of the thermalized source produced in this system occurs on a rather long time scale.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40276959
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 2 Vol. 87; ISSN 0031-9007
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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