The 21Na(p, γ) 22Mg Reaction from Ecm = 200 to 850 KeV in Explosive Stellar Events

Details The 21Na(p, γ) 22Mg Reaction from Ecm = 200 to 850 KeV in Explosive Stellar Events The 21Na(p, γ) 22Mg Reaction from Ecm = 200 to 850 KeV in Explosive Stellar Events

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005omeg.conf..375b&link_type=abstract

ORIGIN OF MATTER AND EVOLUTION OF GALAXIES 2003. Held 17-19 November 2003 in RIKEN, Wako, Saitama, Japan. Edited by M Terasawa,

Physics

Scientific paper

The long-lived radioactive nuclide 22Na (t1/2 = 2.6 y) is, in principle, an astronomical observable for understanding the physics processes of oxygen-neon novae. Production and abundance yields of 22Na in these events are dependent to the hitherto unknown rate of the 21Na(p,γ)22Mg reaction. Using a high intensity radioactive 21Na beam at the TRIUMF-ISAC facility, direct measurements of the strengths of six potentially astrophysically important resonances have been made at center of mass energies in the range: Ecm = 200 to 850 keV. Reported herein are preliminary results obtained for these strengths and their respective contributions to the 21Na(p,γ)22Mg stellar reaction rate.

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