Physics – Nuclear Physics
Scientific paper
Dec 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phrvc..44.2794l&link_type=abstract
Physical Review C (Nuclear Physics), Volume 44, Issue 6, December 1991, pp.2794-2800
Physics
Nuclear Physics
13
Inelastic Neutron Scattering, 59<=A<=89
Scientific paper
Cross sections have been measured for the reaction 64Ni(n,p)64Co at laboratory angles between 0° and 10° for incident neutron energies from 90 to 240 MeV. The ground-state cross sections together with the β- decay ft value for the transition 64Co(g.s.)-->64Ni(g.s.) are used to normalize the q=0 differential cross section in units of mb/sr per unit Gamow-Teller (GT) strength. This is the first absolute measurement of the A(n,p) unit cross section for a nucleus in the (fp) shell, and it may be used to calibrate the GT strength measured in other (n,p) reactions of similar mass nuclei. Since the (e-,νe) channel involves the same nuclear matrix element as the (n,p) channel, knowledge of GT strength in these nuclei is important for supernova modeling codes which depend on knowledge of e- capture rates of (fp)-shell nuclei to determine parameters of stellar core collapse.
Aslanoglou X.
Brady F. P.
Finlay R. W.
Haight Robert C.
Howell Rafael C.
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