Two characteristic volumes in thermal nuclear multifragmentation
- Joint Institute for Nuclear Research, 141980 Dubna (Russian Federation)
- Institut fuer Kernphysik, Darmstadt University of Technology, 64289 Darmstadt (Germany)
- H. Niewodniczanski Institute of Nuclear Physics, 31-342 Cracow (Poland)
- Kurchatov Institute, 123182 Moscow (Russian Federation)
- University of Iowa, Iowa City, Iowa 52242 (United States)
- Institute for Nuclear Research, 117312 Moscow (Russian Federation)
The paper is devoted to the experimental determination of the space-time characteristics for the target multifragmentation in p(8.1 GeV)+Au collisions. The experimental data on the fragment charge distribution and kinetic energy spectra are analyzed within the framework of the statistical multifragmentation model. It is found that the partition of hot nuclei is specified after expansion of the target spectator to a volume equal to V{sub t}=(2.9{+-}0.2)V{sub o}, with V{sub o} as the volume at normal density. However, the freezeout volume is found to be V{sub f}=(11{+-}3)V{sub o}. At freezeout, all the fragments are well separated and only the Coulomb force should be taken into account. The results are in accordance with a scenario of spinodal disintegration of hot nuclei.
- OSTI ID:
- 20695624
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 70, Issue 4; Other Information: DOI: 10.1103/PhysRevC.70.041601; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
Similar Records
Statistical simultaneous multifragmentation model for heavy ion collisions with entrance channel characteristics
Isospin-dependent multifragmentation of relativistic projectiles