Due to its relatively long half-life, 18F can survive until nova envelope is transparent, and therefore can provide a sensitive diagnostic of nova nucleosynthesis. Much effort has been made to understand the origins of 18F in novae. O'Malley, Patrick Allen, Jacob Bardayan, Dan Becchetti, Fred Cizewski, Jolie Febbraro, Michael Hall, Matthew Jones, Kate Grzywacz, Robert Paulauaskas, Stan Smith, Karl Thornsberry, Cory Spectroscopic Factors of low-lying levels in 18Ne The experimental results are in good overall agreement with self-consistent beyond-mean-field calculations based on the Gogny D1S interaction, which suggests both triaxial degree of freedom and shape coexistence playing important roles in the description of intrinsic deformations in neutron-rich Se isotopes. The low-lying 22+ states, along with other features, indicate triaxiality in these nuclei. Based on γ -γ coincidence analysis, low-lying excitation level schemes are proposed for these nuclei, including the 21+, 41+ states and 22+ states at remarkably low energies. Neutron-rich 88,90,92,94Se isotopes were studied via in-beam γ -ray spectroscopy after nucleon removal reactions at intermediate energies at the Radioactive Isotope Beam Factory.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |