Helmer, R.L.Punyasena, M.A.Abegg, R.Alford, W.P.Celler, A.El-Kateb, S.Engle, J.Frekers, D.Henderson, R.S.Jackson, K.P.Long, S.Miller, C.A.Olsen, W.C.Spicer, B.M.Trudel, A.Vetterli, M.C.2014-11-192014-11-191997http://repository.kln.ac.lk/handle/123456789/4139Cross sections have been measured up to 35 MeV excitation for the 76Se(n,p)76As reaction at five laboratory angles between 0� and 15�. The incident neutron energy was 198 MeV. The distribution of Gamow-Teller (GT) strength at excitation energies less than 10 MeV was deduced by carrying out a multipole decomposition of the data. The GT strength below 6 MeV excitation was found to be less than 0.9 units, in qualitative agreement with a quasiparticle random-phase approximation calculation. The present results have been compared with data from the 76Ge(p,n)76As reaction to obtain an estimate of a lower limit for the lifetime of 76Ge for ?? decay. The estimate is in qualitative agreement with the measured lifetime.Physics; Physics- Experiments; Reaction time; Gamow-TellerarticlePhysics