Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1995-06-08
Phys. Rev. C, 56 (1997) 2626
Physics
Nuclear Physics
Nuclear Theory
20 pages + 5 ps figures, ReVTeX, uses psfig.sty, the description is extended to include final state interactions, phenomenolog
Scientific paper
10.1103/PhysRevC.56.2626
Competition among particle evaporation, temperature gradient and flow is investigated in a phenomenological manner, based on a simultaneous analysis of quantum statistical correlations and momentum distributions for a non-relativistic, spherically symmetric, three-dimensionally expanding, finite source. The parameters of the model emission function are constrained by fits to neutron and proton momentum distributions and correlation functions in intermediate energy heavy-ion collisions. The temperature gradient is related to the momentum dependence of the radius parameters of the two-particle correlation function, as well as to the momentum-dependent temperature parameter of the single particle spectrum, while a long duration of particle evaporation is found to be responsible for the low relative momentum behavior of the two-particle correlations.
Asakawa Masayuki
Csorgo Tamas
Helgesson Johan
Lörstad Bengt
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