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Sequential decay in the C__(d,np)C__ reaction
Pitts, Ann E
Phillips, Gerald C.
Master of Arts
The C12(d,pn)C12 reaction has been studied using the Rice University high resolution 180° magnetic spectrometer for deuteron energies of 4.66, 4.89, 5.46 MeV. No evidence was found for the existence of a density of states cusp near the neutron threshold similar to that seen in the Be9(p,pn)Be8 reaction studied by R. R. Spencer, G. C. Phillips and T. E. Young. However, proton groups were observed at energies which correspond to the 2 body sequential decay N14* --> N13* + n, N13*--> C12 + p. The two states in N13 which were involved in this were the 3.51 and 3.56 MeV states. These data show broadening and energy shifting due to the motion of the intermediate nucleus. Theoretical line shapes have been calculated to compare with these data. The groups occur at 1.08, 1.04, and 1.01 MeV with approximate widths at half height of 90, 49, 59 kev corresponding to deuteron energies of 4.655, 4.889 and 5.462 MeV respectively.