Search

The Coulomb dissociation of 27P was studied experimentally using 27P beams at 57MeV/nucleon with a lead target. The E2 gamma decay width of the first excited state in 27P was determined to be (2.8±0.5)×10-5eV. The total ( M1 + E2) gamma decay width of the state, which is of astrophysical interest, is estimated by combining the experimental result and a shell model calculation. The reaction rate of 26Si(p,γ)27P is deduced from the estimated total gamma decay width. The astrophysical implication derived from estimated gamma decay width is discussed. [ABSTRACT FROM AUTHOR]

Experimental studies on in-beam γ-ray spectroscopy using a 12Be radioactive beam are presented. Inelastic scattering of the neutron-rich 12Be nucleus on 208Pb, 12C, and (CH2)n targets has been studied by measuring de-excitation γ-rays in coincidence with scattered particles. The level schemes and transition probabilities are determined for low-lying excited states in 12Be. The present paper presents a brief review of the spectroscopic results, which may be associated with the N = 8 shell quenching near the drip line. [ABSTRACT FROM AUTHOR]