Speaker
Prof.
Karl-Heinz Speidel
(Helmholtz-Institut für Strahlen- und Kernphysik, Univ. Bonn)
Description
In recent measurements of g factors and lifetimes of short-lived nuclear states
several radioactive nuclei have been investigated which were produced in
alpha-transfer reactions to stable projectiles at the Coulomb barrier employing the
techniques of transient magnetic fields and Doppler-Shift-Attenuation, respectively.
In particular, this method has been applied to 44Ti [1], 52Ti [2], 62Zn [3] and 68Ge
[4] providing new insights into their nuclear structure which has been discussed in
the framework of large-scale shell model calculations.
This novel technique can be extended to many more neutron-deficient as well as
neutron-rich nuclei of the nuclear chart using respective stable nuclei at the border
lines of the valley of stability as projectiles. In this respect, this possibility
manifests an interesting alternative to Coulomb excitation experiments on radioactive
ion beams.
[1] S. Schielke et al., Phys. Lett. B 567 (2003)15
[2] K.-H. Speidel et al., Phys. Lett. B, in press
[3] O. Kenn et al., Phys. Rev. C 65 (2002) 034308
[4] J. Leske et al., Phys. Rev. C 71 (2005) 044316
Author
Prof.
Karl-Heinz Speidel
(Helmholtz-Institut für Strahlen- und Kernphysik, Univ. Bonn)
