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Titolo:
QUANTUM-STATISTICAL CORRELATIONS AND SINGLE-PARTICLE DISTRIBUTIONS FOR SLOWLY EXPANDING SYSTEMS WITH TEMPERATURE PROFILE
Autore:
HELGESSON J; CSORGO T; ASAKAWA M; LORSTAD B;
Indirizzi:
EUROPEAN CTR STUDIES THWEORET NUCL PHYS & RELATED,ECT,VILLA TAMBOSI,STRADA TARABELLE 286 I-38050 VILLAZZANO TRENTO ITALY HUNGARIAN ACAD SCI,KFKI,RMKI H-1525 BUDAPEST HUNGARY COLUMBIA UNIV,DEPT PHYS NEW YORK NY 10027 NAGOYA UNIV,SCH SCI,DEPT PHYS NAGOYA AICHI 46401 JAPAN LUND UNIV,DEPT PHYS S-22100 LUND SWEDEN
Titolo Testata:
Physical review. C. Nuclear physics
fascicolo: 5, volume: 56, anno: 1997,
pagine: 2626 - 2635
SICI:
0556-2813(1997)56:5<2626:QCASDF>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
HEAVY-ION COLLISIONS; BOSE-EINSTEIN CORRELATIONS; PROTON INTERFEROMETRY; PION INTERFEROMETRY; FINITE SYSTEMS; EMISSION; FORMALISM; NEUTRON; PLASMA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
32
Recensione:
Indirizzi per estratti:
Citazione:
J. Helgesson et al., "QUANTUM-STATISTICAL CORRELATIONS AND SINGLE-PARTICLE DISTRIBUTIONS FOR SLOWLY EXPANDING SYSTEMS WITH TEMPERATURE PROFILE", Physical review. C. Nuclear physics, 56(5), 1997, pp. 2626-2635

Abstract

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 nonrelativistic, spherically symmetric, three-dimensionally expanding, finite source. The parameters of the model emission function are constrained by fits to neutron and proton momentum distributionsand 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.

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Documento generato il 22/01/20 alle ore 12:18:33