4 pi studies of the 1.8-4.8 GeV He-3+Ag-nat, Au-197 reactions .2. Multifragmentation

被引：40

作者：

Foxford, ER

Kwiatkowski, K

Bracken, DS

Morley, KB

Viola, VE

Yoder, NR

Volant, C

Pollacco, EC

Legrain, R

Korteling, RG

Friedman, WA

Brzychczyk, J

Breuer, H

机构：

[1] INDIANA UNIV, DEPT PHYS, BLOOMINGTON, IN 47405 USA

[2] INDIANA UNIV, CYCLOTRON FACIL, BLOOMINGTON, IN 47405 USA

[3] CTR ETUD SACLAY, CEA,DAPNIA,SERV PHYS NUCL, F-91191 GIF SUR YVETTE, FRANCE

[4] SIMON FRASER UNIV, DEPT CHEM, BURNABY, BC V5A 1S6, CANADA

[5] UNIV WISCONSIN, DEPT PHYS, MADISON, WI 53706 USA

[6] JAGIELLONIAN UNIV, INST PHYS, PL-30059 KRAKOW, POLAND

[7] UNIV MARYLAND, DEPT PHYS, COLLEGE PK, MD 20742 USA

来源：

PHYSICAL REVIEW C | 1996年 / 54卷 / 02期

关键词：

D O I：

10.1103/PhysRevC.54.749

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：

Multifragmentation of Ag-nat and Au-197 nuclei induced by 1.8-4.8 GeV He-3 ions has been studied with the Indiana Silicon Sphere 4 pi detector array. Rapidity, moving source, and sphericity-coplanarity analyses are consistent with near-simultaneous emission from a source in approximate kinetic equilibrium. For the most dissipative collisions, the spectral peaks are broadened and shifted to very low energies, indicative of emission from an extended nuclear system with rho/rho(0) similar to 1/3. Predictions of an intranuclear cascade/expanding, emitting source model compare well with experimental multiplicity distributions and the evolution of fragment spectral shapes.

引用

页码：749 / 760

页数：12

共 68 条

[1] FINITENESS EFFECTS IN THE ANALYSIS OF MULTIFRAGMENTATION EVENTS IN THE SPHERICITY COPLANARITY PLANE [J].

BONDORF, JP ;

DASSO, CH ;

DONANGELO, R ;

POLLAROLO, G .

PHYSICS LETTERS B, 1990, 240 (1-2) :28-32

[2] STATISTICAL MULTIFRAGMENTATION OF NUCLEI .1. FORMULATION OF THE MODEL [J].

BONDORF, JP ;

DONANGELO, R ;

MISHUSTIN, IN ;

PETHICK, CJ ;

SCHULZ, H ;

SNEPPEN, K .

NUCLEAR PHYSICS A, 1985, 443 (02) :321-347

[3]

BONDORF JP, 1985, NUCL PHYS A, V436, P265

[4] MULTIFRAGMENT DISINTEGRATION OF THE XE-129+AU-197 SYSTEM AT E/A = 50 MEV [J].

BOWMAN, DR ;

PEASLEE, GF ;

DESOUZA, RT ;

CARLIN, N ;

GELBKE, CK ;

GONG, WG ;

KIM, YD ;

LISA, MA ;

LYNCH, WG ;

PHAIR, L ;

TSANG, MB ;

WILLIAMS, C ;

COLONNA, N ;

HANOLD, K ;

MCMAHAN, MA ;

WOZNIAK, GJ ;

MORETTO, LG ;

FRIEDMAN, WA .

PHYSICAL REVIEW LETTERS, 1991, 67 (12) :1527-1536

[5] INTERMEDIATE MASS FRAGMENT EMISSION AS A PROBE OF NUCLEAR-DYNAMICS [J].

BOWMAN, DR ;

MADER, CM ;

PEASLEE, GF ;

BAUER, W ;

CARLIN, N ;

DESOUZA, RT ;

GELBKE, CK ;

GONG, WG ;

KIM, YD ;

LISA, MA ;

LYNCH, WG ;

PHAIR, L ;

TSANG, MB ;

WILLIAMS, C ;

COLONNA, N ;

HANOLD, K ;

MCMAHAN, MA ;

WOZNIAK, GJ ;

MORETTO, LG ;

FRIEDMAN, WA .

PHYSICAL REVIEW C, 1992, 46 (05) :1834-1848

[6]

BRACKEN D, 1995, THESIS INDIANA U

[7] EVENT-SHAPE ANALYSIS - SEQUENTIAL VERSUS SIMULTANEOUS MULTIFRAGMENT EMISSION [J].

CEBRA, DA ;

HOWDEN, S ;

KARN, J ;

NADASEN, A ;

OGILVIE, CA ;

VANDERMOLEN, A ;

WESTFALL, GD ;

WILSON, WK ;

WINFIELD, JS ;

NORBECK, E .

PHYSICAL REVIEW LETTERS, 1990, 64 (19) :2246-2249

[8] EJECTION OF LARGE FRAGMENTS IN HIGH-ENERGY NUCLEAR REACTIONS [J].

CRESPO, VP ;

ALEXANDER, JM ;

HYDE, EK .

PHYSICAL REVIEW, 1963, 131 (04) :1765-&

[9] PROTON-NUCLEUS INTERACTION AT HIGH-ENERGY [J].

CUGNON, J .

NUCLEAR PHYSICS A, 1987, 462 (04) :751-780

[10] PION-PRODUCTION IN CENTRAL HIGH-ENERGY NUCLEAR COLLISIONS [J].

CUGNON, J ;

KINET, D ;

VANDERMEULEN, J .

NUCLEAR PHYSICS A, 1982, 379 (03) :553-567

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