Physics – Nuclear Physics
Scientific paper
Jul 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977nupha.284..379b&link_type=abstract
Nuclear Physics A, Volume 284, Issue 3, p. 379-398.
Physics
Nuclear Physics
7
Nuclear Reactions
Scientific paper
The 78, 76Se(p, t)76, 74Se reactions have been studied at a proton energy of 33 MeV using detector telescopes and particle identification techniques. Twenty-eight states up to an excitation energy of 4.64 MeV in 74Se and twenty-five states up to 4.43 MeV in 76Se were observed, many for the first time. Angular distributions were measured for many of these states from 15-90° and the results compared with standard zero-range DWBA calculations. Many new Jπ assignments were made on the basis of the DWBA calculations and a comparison of the angular distributions with the empirical shapes of transitions to states with well-known Jπ. In particular, two excited O+ states were observed in each nucleus with the strength of the O2+ state in 74Se being enhanced relative to the ground state by a factor of six as compared to the O2+ states in the other Se isotopes. Enhancement coefficients were calculated for simple two-neutron pickup configurations.
Present address: Department of Physics and Astronomy, University of Massachusetts, Amherst Mass, USA.
Barbopoulos L. O.
Borsaru M.
Gebbie D. W.
Hollas C. L.
Nurzynski J.
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