https://doi.org/10.1140/epja/i2005-10151-x
Original Article
Interplay of direct and spin-flip contributions in Gamow-Teller decay to odd-odd N = Z nuclei
1
National Superconducting Cyclotron Laboratory, Michigan State University, 48824, East Lansing, MI, USA
2
Institut für Kernphysik der Universität zu Köln, 50937, Köln, Germany
* e-mail: lisetski@nscl.msu.edu
Received:
3
June
2005
Accepted:
6
September
2005
Published online:
21
October
2005
Strengths of Gamow-Teller decays of T z = ±1 nuclei to T z = 0 odd-odd nuclei have been calculated by using spherical shell model and deformed Nilsson wave functions. The role and competition of the microscopic direct and spin-flip mechanisms generating Gamow-Teller transitions are analyzed. Analytical expressions derived for the B(GT) values give useful insight into the regularities of B(GT) values along the N = Z line. The crucial role of configuration mixing is discussed.
PACS: 23.40.-s β decay; double β decay; electron and muon capture – / 21.60.Cs Shell model – / 21.60.Ev Collective models –
© Società Italiana di Fisica and Springer-Verlag, 2005
