Institute of Experimental Physics, Warsaw University, ul. Ho?a 69, 00-681 Warszawa, Poland, PL Department of Physics, University of Jyv?skyl?, P.O.Box. 35, FIN-40351, Jyv?skyl?, Finland, FI
Abstract:
Very neutron–rich fission products of the mass chain A=113 obtained from the IGISOL on–line mass separator have been investigated by γγ coincidence techniques and γ-spectra multiscaling. Gamma–rays following β–decay of 113Tc have been observed for the first time and a new 0.5 s isomeric state has been found in 113Ru. Received: 10 February 1998