Source size scaling of fragment production in projectile breakup

被引：34

作者：

Beaulieu, L

Bowman, DR

Fox, D

DasGupta, S

Pan, J

Ball, GC

Djerroud, B

Dore, D

GalindoUribarri, A

Guinet, D

Hagberg, E

Horn, D

Laforest, R

Larochelle, Y

Lautesse, P

Samri, M

Roy, R

StPierre, C

机构：

[1] AECL RES, CHALK RIVER LABS, CHALK RIVER, ON K0J 1J0, CANADA

[2] INST PHYS NUCL, F-69622 VILLEURBANNE, FRANCE

[3] MCGILL UNIV, DEPT PHYS, MONTREAL, PQ H3A 2T8, CANADA

来源：

PHYSICAL REVIEW C | 1996年 / 54卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.54.R973

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：

Fragment production has been studied as a function of the source mass and excitation energy in peripheral collisions of Cl-35+ Au-197 at 43 MeV/nucleon and Ge-70+Ti-nat at 35 MeV/nucleon. The results are compared to the Au+Au data at 600 MeV/nucleon obtained by the ALADIN Collaboration. A mass scaling, by A(source) similar to 35 to 190, strongly correlated to excitation energy per nucleon, is presented, suggesting a thermal fragment production mechanism. Comparisons to a standard sequential decay model and the lattice-gas model are made. Fragment emission from a hot, rotating source is unable to reproduce the experimental source size scaling.

引用

页码：R973 / R976

页数：4

共 30 条

[21] ARE MULTIFRAGMENT EMISSION PROBABILITIES REDUCIBLE TO AN ELEMENTARY BINARY EMISSION PROBABILITY [J].

MORETTO, LG ;

PHAIR, L ;

TSO, K ;

JING, K ;

WOZNIAK, GJ ;

SOUZA, RT ;

BOWMAN, DR ;

CARLIN, N ;

GELBKE, CK ;

GONG, WG ;

KIM, YD ;

LISA, MA ;

LYNCH, WG ;

PEASLEE, GF ;

TSANG, MB ;

ZHU, F .

PHYSICAL REVIEW LETTERS, 1995, 74 (09) :1530-1533

[22] UNIFIED DESCRIPTION FOR THE NUCLEAR-EQUATION OF STATE AND FRAGMENTATION IN HEAVY-ION COLLISIONS [J].

PAN, JC ;

DASGUPTA, S .

PHYSICAL REVIEW C, 1995, 51 (03) :1384-1392

[23] A SCHEMATIC MODEL FOR FRAGMENTATION AND PHASE-TRANSITION IN NUCLEAR COLLISIONS [J].

PAN, JC ;

DASGUPTA, S .

PHYSICS LETTERS B, 1995, 344 (1-4) :29-34

[24] BINARY DISSIPATIVE PROCESSES AND FORMATION OF HOT NUCLEI IN AR-36+AL-27 REACTIONS FROM 55 TO 95 MEV/U [J].

PETER, J ;

JEONG, SC ;

ANGELIQUE, JC ;

AUGER, G ;

BIZARD, G ;

BROU, R ;

BUTA, A ;

CABOT, C ;

CASSAGNOU, Y ;

CREMA, E ;

CUSSOL, D ;

DURAND, D ;

ELMASRI, Y ;

EUDES, P ;

HE, ZY ;

KERAMBRUN, A ;

LEBRUN, C ;

LEGRAIN, R ;

PATRY, JP ;

PEGHAIRE, A ;

REGIMBART, R ;

ROSATO, E ;

SAINTLAURENT, F ;

STECKMEYER, JC ;

TAMAIN, B ;

VIENT, E .

NUCLEAR PHYSICS A, 1995, 593 (01) :95-123

[25] REDUCIBILITY AND THERMAL SCALING OF CHARGE-DISTRIBUTIONS IN MULTIFRAGMENTATION [J].

PHAIR, L ;

TSO, K ;

GHETTI, R ;

WOZNIAK, GJ ;

MORETTO, LG ;

DESOUZA, RT ;

BOWMAN, DR ;

CARLIN, N ;

GELBKE, CK ;

GONG, WG ;

KIM, YD ;

LISA, MA ;

LYNCH, WG ;

PEASLEE, GF ;

TSANG, MB ;

ZHU, F .

PHYSICAL REVIEW LETTERS, 1995, 75 (02) :213-216

[26] NEW AND IMPROVED PHOSWICH DETECTORS MANUFACTURED BY A HEAT PRESS TECHNIQUE [J].

PRUNEAU, CA ;

BALL, GC ;

DMYTRENKO, P ;

HAGBERG, E ;

HORN, D ;

STEER, MG ;

WALKER, RB ;

WHAN, T ;

RIOUX, C ;

ROY, R ;

STPIERRE, C ;

DRAKE, TE ;

GALINDOURIBARRI, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1990, 297 (03) :404-409

[27] DAMPED REACTION DYNAMICS IN AU-197+PB-208 COLLISIONS AT 29 MEV NUCLEON [J].

QUEDNAU, BM ;

BALDWIN, SP ;

LOTT, B ;

SCHRODER, WU ;

SZABO, BM ;

TOKE, J ;

HILSCHER, D ;

JAHNKE, U ;

ROSSNER, H ;

BRESSON, S ;

GALIN, J ;

GUERREAU, D ;

MORJEAN, M ;

JACQUET, D .

PHYSICS LETTERS B, 1993, 309 (1-2) :10-16

[28]

TINCKNELL ML, 1996, UNPUB P 12 WORKSH NU

[29] INTERMEDIATE-MASS FRAGMENT DECAY OF THE NECK ZONE FORMED IN PERIPHERAL BI-209+XE-136 COLLISIONS AT E(LAB)/A=28 MEV [J].

TOKE, J ;

LOTT, B ;

BALDWIN, SP ;

QUEDNAU, BM ;

SCHRODER, WU ;

SOBOTKA, LG ;

BARRETO, J ;

CHARITY, RJ ;

SARANTITES, DG ;

STRACENER, DW ;

DESOUZA, RT .

PHYSICAL REVIEW LETTERS, 1995, 75 (16) :2920-2923

[30]

TRAUTMANN W, 1995, P 33 INT WINT M NUCL, P372

← 1 2 3 →