Energy levels of A = 21−44 nuclei (V)

Strength of theEc.m.=1113keV resonance in20NeChristian1, Hutcheon2, Akers3 et al. 2013Phys. Rev. C

“…The Bloch et al results, along with an evaluation [25], were used by Rolfs et al [1] to normalize direct capture yields according to the formula…”

An unambiguous Jπ assignment from γ-rays produced in heavy-ion reactions; The lowest J=6+, 38Ar level

“…[7]. In a least-squares analysis of the angular distribution of transition b ~ c one usually calculates X 2, for [3] are less than 3% at the 95% confidence level. The mean life and decay exclude for the 1822 keV transition octupole radiation and restrict [9] and M2 admixture to have an intensity of<3% (i.e.…”

“…It has, however, appeared to be difficult to harness this type of reactions to assign spins and parities which satisfy the criteria [3] of model-independence and 99.9% statistical confidence. One reason may be that the "y-ray spectra, due to simultaneous excitation of several final nuclei, are rather complex.…”

Evidence for Two-step Processes in Photonuclcar Reactions

“…Wildenthal and Newman (1968) found, from a study of the 28Si(d, 3He)27 Al reaction, two states populated by 1 = 1 pick-up reactions. These are the 4·05 and 5· 16 MeV states, both of which have large spectroscopic factors for the pick-up reaction, and small spectroscopic factors in the 26MgeHe, d)27 Al reaction (Endt and Van der Leun 1973). They are thus labelled as states formed by coupling a proton hole to the ground state of 28Si.…”