In-beam γ-ray Spectroscopy of 30P via the 28Si(3He,pγ)30P Reaction

The level structure of 30 P up to 8.25 MeV was investigated via in-beam γ -ray spectroscopy using the 28 Si( 3 He,p γ ) 30 P reaction at 9 MeV at the University of Tsukuba Tandem Accelerator Complex in Japan. An energy level scheme was deduced from γ - γ coincidence measurements. 47 new transitions have been observed from the previously known states (mostly resonances), thereby reducing the uncertainties in the excitation energies of 17 states from 3 to 10 keV to values of γ -ray angular distributions and γ - γ directional correlation of oriented nuclei (DCO ratios) were made for several observed levels of 30 P.