Beta decay of Ar-31
Artikel i vetenskaplig tidskrift, 1998

A complete study of Ar-31 beta decay has been made by high-resolution charged-particle and gamma-ray spectroscopy. Beta-delayed radiation was detected by an array of three charged-particle detectors and a large-volume germanium detector. Fifteen new energy levels were discovered in Cl-31. The beta-strength distribution, measured to 14.5 MeV, is compared with a shell-model calculation in the full sd space. The quenching of the Gamow-Teller strength and the isospin impurity of the IAS in Cl-31 are discussed. (C) 1998 Published by Elsevier Science B.V.

EMISSION

SD-SHELL NUCLEI

E-p

DELAYED-PROTON DECAY

Gamow-Teller strength

STRENGTH

calculations

isospin mixing

deduced

E-x(Cl-31)

NE-17

Gamow-Teller quenching

selective mass

I-p

OXBASH shell-model

beta gamma

log ft

beta 2p

radioactivity Ar-31 (from 1 GeV p on CaO powder target

measured beta p

separation)

Författare

L. Axelsson

J. Aysto

M. J. G. Borge

L. M. Fraile

H. O. U. Fynbo

A. Honkanen

P. Hornshoj

A. Jokinen

Björn Jonson

Chalmers, Institutionen för experimentell fysik, Subatomär fysik

P. O. Lipas

I. Martel

I. Mukha

Thomas Nilsson

Chalmers, Institutionen för experimentell fysik, Subatomär fysik

Göran Hugo Nyman

Chalmers, Institutionen för experimentell fysik, Subatomär fysik

B. Petersen

K. Riisager

Martin Smedberg

Chalmers, Institutionen för experimentell fysik, Subatomär fysik

O. Tengblad

Nuclear Physics A

0375-9474 (ISSN)

Vol. 634 475-496

Ämneskategorier

Subatomär fysik

DOI

10.1016/S0375-9474(98)00548-X