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Titolo:
Isospin effect on the process of multifragmentation and dissipation at intermediate energy heavy ion collisions - art. no. 054612
Autore:
Liu, JY; Yang, YF; Zuo, W; Wang, SJ; Zhao, Q; Guo, WJ; Chen, B;
Indirizzi:
CCAST, World Lab, Beijing 100080, Peoples R China CCAST Beijing Peoples R China 100080 ab, Beijing 100080, Peoples R China Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China Natl Lab Heavy Ion Accelerator Lanzhou Peoples R China 730000 es R China Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China Chinese Acad Sci Lanzhou Peoples R China 730000 730000, Peoples R China SW Jiaotong Univ, Inst Modern Phys, Chendu 610031, Peoples R China SW Jiaotong Univ Chendu Peoples R China 610031 u 610031, Peoples R China
Titolo Testata:
PHYSICAL REVIEW C
fascicolo: 5, volume: 6305, anno: 2001,
pagine: 4612 -
SICI:
0556-2813(200105)6305:5<4612:IEOTPO>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
ASYMMETRIC NUCLEAR-MATTER; COLLECTIVE FLOW; MASS DEPENDENCE; BALANCE ENERGY; DYNAMICS; EQUATION; STATE; DISAPPEARANCE; INSTABILITY; MODEL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Liu, JY CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China CCAST POB 8730 Beijing Peoples R China 100080 80, Peoples R China
Citazione:
J.Y. Liu et al., "Isospin effect on the process of multifragmentation and dissipation at intermediate energy heavy ion collisions - art. no. 054612", PHYS REV C, 6305(5), 2001, pp. 4612

Abstract

In the simulation of intermediate energy heavy ion collisions by using isospin-dependent quantum molecular dynamics, the isospin effect on the process of multifragmentation and dissipation has been studied. It is found that the multiplicity of intermediate mass fragments N-IMF for the neutron-poor colliding system is always larger than that for the neutron-rich system, while the quadrupole of single particle momentum distribution Q(zz) for the neutron-poor colliding system is smaller than that of the neutron-rich system for all projectile-target combinations studied at beam energies from about 50 to 150 MeV/nucleon. Since Q(zz) depends strongly on the isospin dependence of the in-medium nucleon-nucleon cross section and weakly on symmetry potential at the above beam energies, it may serve as a good probe to extract the information on the in-medium nucleon-nucleon cross section. The correlation between the multiplicity N-IMF of intermediate mass fragments and the total number of charged particles N-c has a behavior similar to Q(zz), which can be used as a complementary probe to the in-medium nucleon-nucleon cross section.

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Documento generato il 21/09/20 alle ore 16:17:23