COULOMB DISSOCIATION OF A HALO NUCLEUS BE-11 AT 72A MEV

被引：309

作者：

NAKAMURA, T

SHIMOURA, S

KOBAYASHI, T

TERANISHI, T

ABE, K

AOI, N

DOKI, Y

FUJIMAKI, M

INABE, N

IWASA, N

KATORI, K

KUBO, T

OKUNO, H

SUZUKI, T

TANIHATA, I

WATANABE, Y

YOSHIDA, A

ISHIHARA, M

机构：

[1] RIKKYO UNIV,DEPT PHYS,TOKYO 171,JAPAN

[2] UNIV TOKYO,DEPT PHYS,BUNKYO KU,TOKYO 113,JAPAN

[3] OSAKA UNIV,DEPT PHYS,TOYONAKA,OSAKA 560,JAPAN

来源：

PHYSICS LETTERS B | 1994年 / 331卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(94)91055-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have measured the excitation energy spectrum of the Be-10+n system in the Coulomb dissociation of the one-neutron-halo nucleus Be-11 on a Pb target at 72A MeV. We have determined the dipole strength distribution dB(E1)/dE(x) which shows a strong peak at about 800 keV excitation energy. The spectral shape is consistent with a direct breakup model. The Coulomb post acceleration effect has been observed also to support the direct breakup mechanism. The E1 dominance of the Coulomb dissociation is confirmed by observed angular distributions of Be-10 in the Be-11 rest frame.

引用

页码：296 / 301

页数：6

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