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Scientific paper
Mar 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aipc..819..601s&link_type=abstract
CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS: 12th International Symposium. AIP Conference Proceedings, Volume 819, pp. 60
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Spectroscopic Factors And Asymptotic Normalization Coefficients, 6<=A<=19, Radiative Capture, Resonance Reactions, Nucleosynthesis In Novae, Supernovae, And Other Explosive Environments
Scientific paper
The structure of proton-rich isotope 19Na was studied in resonance elastic scattering of a radioactive 18Ne beam on a proton target using inverse-kinematics method. Only one state of 19Na (the second excited state) was observed. A combined R-matrix and potential model analysis was performed. The spin-parity assignment of the second excited state was confirmed to be 1/2+. We show that the position of the 1/2+ state significantly affects the astrophysicaly important 18Ne(2p,γ) reaction rate through that state but the totalreaction rate remains unchanged 2p-capture on 18Ne proceeds mostly via the ground and first excited states in 19Na at stellar temperatures.
Aprahamian Ani
Boutachkov Plamen
Kolata James J.
Lamm L. O.
Quinn M.
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