Determination of impact parameter at intermediate energy heavy ion collision

被引：0

作者：

Zhang, FS ^{[1
]}

Chen, LW

Ming, ZY

Zhu, ZY

机构：

[1] Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China

[2] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China

[3] CCAST, World Lab, Beijing 100080, Peoples R China

[4] Chinese Acad Sci, Shanghai Inst Nucl Res, Shanghai 201800, Peoples R China

来源：

HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION | 2000年 / 24卷 / 04期

关键词：

impact parameter; isospin effect; isospin-dependent QMD model;

D O I：

暂无

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Within the framework of an IQMD model, the stopping rate E-rat, linear momentum transfer LMT, charged-particle multiplicities N-c, light charged-particle multiplicities N-lc, neutron multiplicities N-n, and Z(bound) are investigated as a function of the impact parameter b in reactions of Sn-112 + Sn-112 and Sn-124 + Sn-124 at 40 and 100 MeV/u. The results indicate that N-n is isopsin-dependent as a function of b at both 40 and 100 MeV/u, and Z(bound) is also isopsin-dependent at 40 MeV/u but not at 100 MeV/u. Meanwhile, we also discuss how to determine impact parameter of an event at lower and higher incident energies.

引用

页码：320 / 325

页数：6

共 14 条

[1]

AIELLO S, 1995, NUCL PHYS A, V583, pC461

[2]

Chen Liewen, 1996, High Energy Physics and Nuclear Physics, V20, P1091

[3]

Chen LW, 2000, HIGH ENERG PHYS NUC, V24, P153

[4]

Chen LW, 1997, J PHYS G NUCL PARTIC, V23, P211, DOI 10.1088/0954-3899/23/2/008

[5] Analysis of isospin dependence of nuclear collective flow in an isospin-dependent quantum molecular dynamics model [J].

Chen, LW ;

Zhang, FS ;

Jin, GM .

PHYSICAL REVIEW C, 1998, 58 (04) :2283-2291

[6]

DESOUZA RT, 1990, NUCL INSTRUM METH A, V295, P156

[7] A HIGHLY-SEGMENTED DELTA-E TIME-OF-FLIGHT WALL AS FORWARD DETECTOR OF THE 4-PI-SYSTEM FOR CHARGED-PARTICLES AT THE SIS ESR ACCELERATOR [J].

GOBBI, A ;

ALARD, JP ;

AUGUSTINSKI, G ;

BASRAK, Z ;

BASTID, N ;

BELAYEV, IM ;

BLAICH, T ;

BOCCACCIO, P ;

BOCK, R ;

BOUSSANGE, S ;

BUTA, A ;

CAPLAR, R ;

CERRUTI, C ;

CHARITY, RJ ;

CINDRO, N ;

COFFIN, JP ;

CROUAU, M ;

DAUDON, F ;

DEVIN, JF ;

DUPIEUX, P ;

ERO, J ;

FAN, ZG ;

FAYARD, C ;

FINTZ, P ;

FODOR, Z ;

FRAYSSE, L ;

FREIFELDER, R ;

FROLOV, S ;

GIMENEZ, E ;

GRIGORIAN, Y ;

GUILLAUME, G ;

HERRMANN, N ;

HILDENBRAND, KD ;

HOLBLING, S ;

HORNECKER, F ;

HOUARI, A ;

JEONG, SC ;

JORIO, M ;

JUNDT, F ;

KECSKEMETI, J ;

KONCZ, P ;

KORCHAGIN, Y ;

KOTTE, R ;

KRAMER, M ;

KUHN, C ;

LEBEDEV, A ;

LEGRAND, I ;

MAGUIRE, CF ;

MANKO, V ;

MARQUARDT, M .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1993, 324 (1-2) :156-176

[8] FRAGMENTATION OF GOLD PROJECTILES - FROM EVAPORATION TO TOTAL DISASSEMBLY [J].

HUBELE, J ;

KREUTZ, P ;

ADLOFF, JC ;

BEGEMANNBLAICH, M ;

BOUISSOU, P ;

IMME, G ;

IORI, I ;

KUNDE, GJ ;

LERAY, S ;

LINDENSTRUTH, V ;

LIU, Z ;

LYNEN, U ;

MEIJER, RJ ;

MILKAU, U ;

MORONI, A ;

MULLER, WFJ ;

NGO, C ;

OGILVIE, CA ;

POCHODZALLA, J ;

RACITI, G ;

RUDOLF, G ;

SANN, H ;

SCHUTTAUF, A ;

SEIDEL, W ;

STUTTGE, L ;

TRAUTMANN, W ;

TUCHOLSKI, A .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1991, 340 (03) :263-270

[9] Multifragment production in reactions of Sn-112+Sn-112 and Sn-124+Sn-124 at E/A=40 MeV [J].

Kunde, GJ ;

Gaff, SJ ;

Gelbke, CK ;

Glasmacher, T ;

Huang, MJ ;

Lemmon, R ;

Lynch, WG ;

Manduci, L ;

Martin, L ;

Tsang, MB ;

Friedman, WA ;

Dempsey, J ;

Charity, RJ ;

Sobotka, LG ;

Agnihotri, DK ;

Djerroud, B ;

Schroder, WU ;

Skulski, W ;

Toke, J ;

Wyrozebski, K .

PHYSICAL REVIEW LETTERS, 1996, 77 (14) :2897-2900

[10]

Lalazissis GA, 1997, PHYS REV C, V55, P1

← 1 2 →