Journal article

RESONANCE STRENGTH MEASUREMENTS AND THERMONUCLEAR REACTION-RATES FOR MG-25(P,GAMMA)AL-26(II)

MR ANDERSON, LW MITCHELL, ME SEVIOR, SR KENNETT, DG SARGOOD

NUCLEAR PHYSICS A | ELSEVIER SCIENCE BV | Published : 1982

Abstract

The strengths of resonances in 25Mg(p, γ)26Al have been measured in the energy range Ep = 600-1730 keV. Several serious disagreements with previously published results are reported. Thermonuclear reaction rates are calculated for the temperature range (0.5-10) × 109 K for production of 26Al in its ground state and in its isomeric first excited state. Total thermonuclear reaction rates are compared with those calculated from statistical-model cross sections and, even in energy ranges where the experimental cross section derives from widely spaced resonances, the agreement is very good. The establishment of a thermal population of 26Al excited states in a stellar environment is discussed, with..

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