[Triumf-seminars] TRIUMF Seminar today at 14:30

[postmaster at admin.triumf.ca]

Date/Time: Thu 2009-01-15 at 14:30

Location:  Auditorium          

Speaker:   Carl Brune (Ohio University)

Title:     Proton-transfer study of unbound 19Ne states via 2H(18F,alpha+15O)n

Abstract: The nuclear structure of 19Ne near the proton threshold is of interest for understanding the rates of proton-induced reactions on 18F in novae. The proton transfer reaction 18F(d,n)19 Ne has been measured by bombarding a 720-µg/cm2 CD2 target with a 150-MeV 18F9+ beam at ORNL’s Holifield Radioactive Ion Beam Facility. The 19Ne states of interest near the proton threshold decay by breakup into alpha + 15O which are detected in coincidence with position-sensitive E and delta-E Si telescopes. The reconstruction of the relative energy reveals the excited states of 19Ne which are populated. The mirror reaction 2 H(18F,alpha+15N)p has been measured simultaneously. The implications for the 18F(p,alpha)15O reaction rate and 19Ne-19F mirror symmetry will be discussed.

Stimulants available 15 minutes before the talk.

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