Abstract
A series of astrophysical measurements was recently completed at TRIUMF, related to the unknown total rate of the 21Na(p, γ) 22Mg reaction. With a high intensity 21Na beam from the ISAC facility, the DRAGON recoil mass spectrometer was used to directly measure seven resonances at center of mass energies from E c.m. = 200 to 1135 keV and determine their respective contributions to the 21Na(p, γ)22Mg reaction rate in novae and x-ray bursts, as well as their impact on 22Na production in novae. This study also allowed the investigation of different excited states in 22Mg; proposed decays and spin assignments are given for the 6246, 6329, and 6609 keV levels.
Original language | English |
---|---|
Pages (from-to) | 729-732 |
Number of pages | 4 |
Journal | Nuclear Physics, Section A |
Volume | 758 |
Issue number | 1-4 SPEC. ISS. |
DOIs | |
State | Published - 25 Jul 2005 |
Externally published | Yes |