PROJECTILE FRAGMENTATION OF HALO NUCLEI IN A PERIPHERAL DIRECT REACTION MODEL

被引：25

作者：

SAGAWA, H ^{[1
]}

TAKIGAWA, N ^{[1
]}

机构：

[1] TOHOKU UNIV, FAC SCI, DEPT PHYS, SENDAI, MIYAGI 980, JAPAN

来源：

PHYSICAL REVIEW C | 1994年 / 50卷 / 02期

关键词：

D O I：

10.1103/PhysRevC.50.985

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：

The transverse and longitudinal momentum distributions of projectile fragmentation of unstable nuclei are studied by using a peripheral direct reaction model. We found that the transverse momentum distribution is affected by absorptive cutoff of the fragmentation process, and the width becomes narrower than that of the longitudinal one which remains almost unaffected. The momentum distributions of fragments from unstable projectiles Be-11 and Li-11 are studied for various microscopic wave functions. Calculated results with halo wave functions show good agreement with experimental data. We discuss also the difference among various models, the spectator model, Friedman model, and Serber model, for predicting the momentum distribution.

引用

页码：985 / 990

页数：6

共 28 条

[11] SHELL-MODEL STUDY OF LIGHT NEUTRON-RICH NUCLEI [J].

HOSHINO, T ;

SAGAWA, H ;

ARIMA, A .

NUCLEAR PHYSICS A, 1990, 506 (02) :271-292

[12]

HUMBERT H, 1992, GSI ANN REPORT

[13] INCLUSIVE PROJECTILE FRAGMENTATION IN THE SPECTATOR MODEL [J].

HUSSEIN, MS ;

MCVOY, KW .

NUCLEAR PHYSICS A, 1985, 445 (01) :124-139

[14]

KELLEY JH, 1993, 3RD P INT C RAD NUCL, P345

[15] PROJECTILE FRAGMENTATION OF THE EXTREMELY NEUTRON-RICH NUCLEUS LI-11 AT 0.79 GEV/NUCLEON [J].

KOBAYASHI, T ;

YAMAKAWA, O ;

OMATA, K ;

SUGIMOTO, K ;

SHIMODA, T ;

TAKAHASHI, N ;

TANIHATA, I .

PHYSICAL REVIEW LETTERS, 1988, 60 (25) :2599-2602

[16]

KOBAYASHI T, 1992, NUCL PHYS A, V538, pC343, DOI 10.1016/0375-9474(92)90784-H

[17]

KOBAYASHI T, 1993, NUCL PHYS A, V553, pC465, DOI 10.1016/0375-9474(93)90641-A

[18]

MIGDAL AB, 1973, SOV J NUCL PHYS+, V16, P238

[19] MOMENTUM DISTRIBUTIONS OF LI-9 FRAGMENTS FOLLOWING THE BREAKUP OF LI-11 [J].

ORR, NA ;

ANANTARAMAN, N ;

AUSTIN, SM ;

BERTULANI, CA ;

HANOLD, K ;

KELLEY, JH ;

MORRISSEY, DJ ;

SHERRILL, BM ;

SOULIOTIS, GA ;

THOENNESSEN, M ;

WINFIELD, JS ;

WINGER, JA .

PHYSICAL REVIEW LETTERS, 1992, 69 (14) :2050-2053

[20] MOMENTUM DISTRIBUTIONS OF LOOSELY-BOUND NEUTRONS WITH THE PERIPHERAL DIRECT REACTION MODEL [J].

SAGAWA, H ;

YAZAKI, K .

PHYSICS LETTERS B, 1990, 244 (02) :149-154

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