An Investigation of (d, p) Stripping Reactions III: Results for²⁸Si and³²S

Angular distribution measurements have been carried out on a number of proton groups emitted as a result of the bombardment by 8 MeV deuterons of targets of natural SiO 2 and sulphur. Using the theory of the stripping process spins and parities have been assigned to the resulting states of 29 Si and 33 S. Certain of these states in both nuclei are thought to be produced by simple excitation of the odd neutron. One of the low states in each case probably involves the first excited state of the nuclear core. In the following list the excitation energy of each state in MeV is given, together with the suggested shell model term or the possible spin values and parity. 29 Si: ground state (2s ½ ), 1.28(1d 3/2 ), 2.03(1d -1 5/2 2s 2 ½ ), 3.07(5/2, 3/2 +), 3.62(1f 7/2 ), 4.93(2p 3/2 ), 6.38(2p ½ ). 33 S: ground state (1d 3/2 ), 0.85(2s -1 ½ 1d 2 3/2 ), 2.90(1f 7/2 ), 3.26(2p 3/2 ), 4.21(3/2, 1/2 -), 4.89(3/2, 1/2 -), 5.72(2p ½ ), 6.48(3/2, 1/2 -).