0000000000535291
AUTHOR
T. Hild
Neutron-rich isotopesTi54−57
The neutron-rich isotopes $^{54\mathrm{\ensuremath{-}}57}\mathrm{Ti}$ and $^{58\mathrm{\ensuremath{-}}60}\mathrm{Cr}$ are produced by fragmentation of a 64.5 MeV/nucleon $^{65}\mathrm{Cu}^{26+}$ beam in a 90 mg/${\mathrm{cm}}^{2}$ $^{9}\mathrm{Be}$ target. Following particle identification by energy loss and time of flight, the radioactive decay was observed by \ensuremath{\beta} singles and \ensuremath{\beta}\ensuremath{\gamma}-coincidence measurements. The results obtained for $^{58\mathrm{\ensuremath{-}}60}\mathrm{Cr}$ are compared to previous results, whereas the decay of the $^{54\mathrm{\ensuremath{-}}57}\mathrm{Ti}$ isotopes is studied here. \ensuremath{\gamma}-ray intensities and en…
Polarization in fragmentation,gfactor of35K
Spin polarization $Pg1%$ has been observed for ${}^{37}\mathrm{K}$ fragments produced in the reaction ${}^{40}\mathrm{Ca}{+}^{9}\mathrm{Be}$ at 500 MeV/nucleon. The polarization was measured as a function of fragment longitudinal momentum (Goldhaber distribution). The experimental results are well described by a new Monte Carlo\char21{}based model. The $\ensuremath{\beta}$-decay half-life of ${}^{35}\mathrm{K}$ was remeasured as ${t}_{1/2}=178(8)$ ms. Using polarized ${}^{35}\mathrm{K}$ fragments, the $g$ factor ${g}_{\mathrm{exp}}{(}^{35}\mathrm{K})=0.24(2)$ was measured. The magnetic moments of isospin $|{T}_{z}|=3/2$ mirror pairs are discussed.