Rapidity dependence of entropy production in proton- and nucleus-induced reactions on heavy nuclei
Journal Article
·
· Phys. Rev. C; (United States)
The entropy of hot nuclear systems is deduced from the mass distribution of fragments emitted from high energy proton- and nucleus-induced reactions via a quantum statistical model. It is found that the entropy per baryon, S/A, of intermediate rapidity (''participant'') fragments is higher than the entropy of target rapidity (''spectator'') fragments. The spectator fragments exhibit S/A values of roughly-equal1.8 independent of the projectile energy from 30 MeV/nucleon up to 350 GeV. This value of the entropy coincides with the entropy at which nuclear matter becomes unbound.
- Research Organization:
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
- OSTI ID:
- 6746161
- Journal Information:
- Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 29:5; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
ENERGY RANGE
ENTROPY
FRAGMENTATION
HADRON REACTIONS
HEAVY ION REACTIONS
HEAVY NUCLEI
MASS SPECTRA
MATHEMATICAL MODELS
MATTER
MEV RANGE
MEV RANGE 100-1000
NUCLEAR MATTER
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
PARTICLE PROPERTIES
PARTICLE RAPIDITY
PHYSICAL PROPERTIES
PROTON REACTIONS
SPALLATION
SPECTRA
STATISTICAL MODELS
THERMODYNAMIC PROPERTIES
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
ENERGY RANGE
ENTROPY
FRAGMENTATION
HADRON REACTIONS
HEAVY ION REACTIONS
HEAVY NUCLEI
MASS SPECTRA
MATHEMATICAL MODELS
MATTER
MEV RANGE
MEV RANGE 100-1000
NUCLEAR MATTER
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
PARTICLE PROPERTIES
PARTICLE RAPIDITY
PHYSICAL PROPERTIES
PROTON REACTIONS
SPALLATION
SPECTRA
STATISTICAL MODELS
THERMODYNAMIC PROPERTIES