Mass excess and excited states of neutron-rich silicon, phosphorus and sulphur isotopes

The neutron-rich nuclei33Si,34Si,35Si,35P,36P,37S and38S were investigated by studying14C and18O — induced transfer reactions on36S using aQ3D magnetic spectrograph and a position sensitive focal plane gas detector. The previously unknown mass of the isotope35Si was determined. The accuracy of the mass excess values of the isotopes33Si,34Si,35P and36P has been improved. Excited states of the isotopes33Si,34Si,35P,36P and38S were identified for the first time. In addition the?-decay of excited states in37S and38S was studied with a Ge(Li) detector in coincidence with theQ3D focal plane detector. Experimental values for the mass excesses are compared with published mass formulae.