Description
GT beta-decay to 1- states in 38- and 40-S can take place if the GS spin of the parent nuclei is 2-. This is why
the present proposal should be considered with the one concerning the measurements of GS spins with LASAGNE.
The Q-beta window for the decay of 38- and 40-P is 12.2 and 14.7 MeV, respectively, well above the neutron emission
threshold (Q-beta-n of 4.2 and 7 MeV, respectively). The beta-spectroscopy of 38P is quite poorly known. For 40-S, the
spectroscopy is reacher, but spin and parities are uncertain. No gamma transition from states with possible 1- spin and
parity to GS are measured.
This experiment is intented to complete the spectroscopy of beta decay with a particular attention eventual population of
high lying states decaying by dipole radiation to the GS or low excited 2+ states.
(considering also structure studies in the sulfur isotopes from beta decay of odd A Phosphore)