High resolution study of the 26Mg(p,p) reactions

The differential cross section for 26Mg(p,p) was measured from Esub(p) = 1.54 to 3.06 MeV at lab angles of 900, 1050, 1350 and 1600 with an overall energy resolution of approximately 400 eV. Resonance parameters were determined for 61 resonances. Strong analogues of the sixth (1/2+), eighth (3/2+) and ninth (7/2-) excited states of 27Mg were identified and tentative identifications suggested for analogues of the seventh (3/2+) and tenth (3/2+) excited states. Spectroscopic factors and Coulomb energies were determined. One striking shift in the Coulomb energies was observed: the analogue of the eighth excited state of 27Mg occurs below the analogues of the sixth and seventh excited states. The present values for GAMMAsub(p) were combined with the results of previous capture measurements and total γ-ray widths determined for almost all of the resonances observed below Esub(p) = 2.6 MeV. (Auth.)