PARALLEL MOMENTUM DISTRIBUTIONS AS A PROBE OF HALO WAVE-FUNCTIONS

被引：96

作者：

KELLEY, JH

AUSTIN, SM

KRYGER, RA

MORRISSEY, DJ

ORR, NA

SHERRILL, BM

THOENNESSEN, M

WINFIELD, JS

WINGER, JA

YOUNG, BM

机构：

[1] MICHIGAN STATE UNIV,DEPT PHYS & ASTRON,E LANSING,MI 48824

[2] MICHIGAN STATE UNIV,DEPT CHEM,E LANSING,MI 48824

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.74.30

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Distributions of the parallel momentum of Be10 fragments from the breakup of 63A MeV Be11 have been measured for Be9, Nb93, Ta181, and U238 targets. The distributions have similar narrow widths with a mean value of 43.6 1.1 MeV/c FWHM, and agree with a theoretical momentum distribution for the valence neutron in Be11. The breakup mechanisms do not appear to distort the parallel momentum distribution of the Be10 core. These findings support the existence of a one-neutron halo in Be11 and the use of the parallel momenta of the heavy breakup products as a reliable probe of halo neutron momenta. © 1994 The American Physical Society.

引用

页码：30 / 33

页数：4

共 32 条

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