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Title: | Gamow-Teller Strength from the 76Se(n,p)76As Reaction: Implication for the Double Beta Decay of 76Ge |
Authors: | 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. |
Keywords: | Physics; Physics- Experiments; Reaction time; Gamow-Teller |
Issue Date: | 1997 |
Publisher: | Physical Review C |
Abstract: | Cross 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. |
URI: | http://repository.kln.ac.lk/handle/123456789/4139 |
Appears in Collections: | Physics |
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