Eur. Phys. J. A 16, 359-363 (2003)
DOI: 10.1140/epja/i2002-10103-0

Mirror decay of

J. Huikari¹, M. Oinonen^{2, 3}, A. Algora⁴, J. Cederkäll³, S. Courtin⁵, P. Dessagne⁵, L. Fraile³, S. Franchoo³, H. Fynbo³, W.X. Huang¹, A. Jokinen^{1, 2, 3}, A. Knipper⁵, F. Marechal⁵, C. Miehé⁵, E. Nacher⁴, K. Peräjärvi³, E. Poirier⁵, L. Weissman³, J. Äystö^{1, 2, 3} and the ISOLDE Collaboration<sup>5

1</sup>  Department of Physics, University of Jyväskylä, P.O. Box 35, FIN-40351, Jyväskylä, Finland
²  Helsinki Institute of Physics, FIN-00014 University of Helsinki, Finland
³  CERN, CH-1211 Geneva 23, Switzerland
⁴  Instituto de Física Corpuscular, CSIC - University of Valencia, E-46071 Valencia, Spain
⁵  Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France

jussi.huikari@phys.jyu.lfi

(Received: 26 September 2002 / Revised version: 24 October 2002 / Published online: 18 February 2003)

Abstract
The -decay of to its mirror nucleus was studied at the ISOLDE PSB facility at CERN by means of -delayed and proton spectroscopy. The decay Q-value and -delayed intensity were measured for the first time. These results,  MeV and , together with accurate measurements of the -decay half-life and -delayed proton branching ratio yielded the Gamow-Teller strength for the mirror transition. Implications of the results on studies of deformation effects and on the path of the rapid proton capture process are discussed.

PACS
23.40.Hc - Relation with nuclear matrix elements and nuclear structure.
21.10.Tg - Lifetimes.
23.50.+z - Decay by proton emission.
27.50.+e - .

© Società Italiana di Fisica, Springer-Verlag 2003