An experiment was performed to extend the knowledge of excited states
in neutron-deficient Ca isotopes.
%%, and to search for the position of the proton drip-line at $Z=20$.
%%
In particular, excited states in \\up{36}Ca were searched for to
%%% obtain information on the isospin-dependence of the
%%% nucleon-nucleon-interaction near the drip-line from
allow for a comparison with its stable mirror nucleus, \\up{36}S.
%%
Secondary beams of \\up{37}Ca and \\up{36}Ca were produced by
fragmentation of a primary \\up{40}Ca beam with an energy of $95\\cdot
A$\\,MeV on the SISSI target at GANIL.
%%
A variety of nuclei around \\up{36}Ca has been produced in a
secondary Be target by neutron and proton-removal at beam energies
around $61\\cdot A$\\,MeV.
%%
The produced nuclei were identified using the spectrometer {\\em
SPEG}, and prompt $\\gamma$ rays were measured with the {\\em
Ch\\^ateau de Cristal}.
%%
A preliminary value for the energy of the first $2^+$ state of
\\up{36}Ca has been determined.
|
