Thermonuclear Al25(p,γ)Si26 reaction rate in classical novae and Galactic Al26

Details Thermonuclear Al25(p,γ)Si26 reaction rate in classical novae and Galactic Al26 Thermonuclear Al25(p,γ)Si26 reaction rate in classical novae and Galactic Al26

Mar 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009phrvc..79c5803w&link_type=abstract

Physical Review C, vol. 79, Issue 3, id. 035803

Physics

Nuclear Physics

11

Explosive Burning In Accreting Binary Systems, Resonance Reactions, Radiative Capture, 20<=A<=38

Scientific paper

The nuclear physics uncertainty associated with the production of the Galactic β-delayed γ-ray emitter Al26 in classical novae is currently dominated by the uncertainty in the thermonuclear Al25(p,γ)Si26 reaction rate. By combining the results of recent experiments with past work, the center-of-mass energy of the key Jπ=3+, Al25(p,γ)Si26 resonance is determined to be 412(2) keV, and a lower limit of Γp/Γγ>5.6 is set for this resonance. The resulting large reduction in the Al25(p,γ)Si26 rate uncertainty is expected to constrain uncertainties in the nova contribution to Galactic Al26.

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