Large asymmetry in the strongest beta-transition for A=9
Journal article, 2003

A new measurement of the beta-decay of Li-9 has clarified the feeding to the highest accessible states in Be-9. It is found that the P-decay mainly populates the 11.8 MeV state, whose spin is determined as 5/2(-). The extracted B-GT value of 5.3(0.9) is a factor 4.4(1.0) larger than that of the mirror transition from C-9. A theoretical explanation of such a pronounced beta-decay asymmetry is presently lacking. (C) 2003 Elsevier B.V. All rights reserved.

measured beta-delayed E-alpha

HE-8

asymmetry

Li-9(beta(-)[from UC(p

A=9 beta-decay

alpha-coinc

alpha

LI-9

NUCLEAR

DECAY

X)])

Be-9 deduced beta-branching strengths

Author

Y. Prezado

U. C. Bergmann

M. J. G. Borge

J. Cederkall

C. A. Diget

L. M. Fraile

H. O. U. Fynbo

H. B. Jeppesen

Björn Jonson

Chalmers, Department of Experimental Physics, Subatomic Physics

Mikael Meister

Thomas Nilsson

Göran Hugo Nyman

Chalmers, Department of Experimental Physics, Subatomic Physics

K. Riisager

O. Tengblad

L. Weissmann

Katarina Wilhelmsen Rolander

Chalmers, Department of Experimental Physics, Subatomic Physics

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

0370-2693 (ISSN)

Vol. 576 1-2 55-61

Subject Categories

Subatomic Physics

DOI

10.1016/j.physletb.2003.09.073

More information

Created

10/8/2017