Decays of very neutron-rich fission products 113Ru and 113Rh

Exotic neutron-rich fission products obtained from IGISOL on-line mass separator for mass chain A=113 have been investigated by γγ coincidence and spectrum-multiscaling measurements. Gamma transitions following β decay of Tc to Ru have been identified and a 0.5 s isomeric state in Ru has been found. Decay schemes of Ru and Rh isotopes have been considerably extended. Large feedings to high-lying levels in Rh lead to revision of the B(GT) strength.