The hot CNO cycle'' [sup 13]N([ital p],[gamma]) resonance energy and the [sup 18]Ne mass

• Published in: Physical review. C, Nuclear physics Nuclear physics, 1994-04, Vol.49:4
• Main Authors: Magnus, P.V., Adelberger, E.G., Garcia, A.
• Format: Article
• Language: English
• Subjects: 663110 > General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-); 663520 > Nuclear Mass Ranges-- A=6-19-- (1992-); BARYONS; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; BINDING ENERGY; CARBON 12 TARGET; CHARGED-PARTICLE REACTIONS; CNO CYCLE; DIRECT REACTIONS; ELEMENTARY PARTICLES; ENERGY; ENERGY RANGE; EVEN-EVEN NUCLEI; FERMIONS; HADRONS; HELIUM 3 REACTIONS; ISOTOPES; LIGHT NUCLEI; MASS; MEV RANGE; MEV RANGE 01-10; MINUTES LIVING RADIOISOTOPES; NEON 18; NEON ISOTOPES; NEUTRONS; NUCLEAR PHYSICS AND RADIATION PHYSICS; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; OXYGEN 14; OXYGEN 16 TARGET; OXYGEN ISOTOPES; RADIOISOTOPES; RESONANCE; SECONDS LIVING RADIOISOTOPES; STAR BURNING; TARGETS 663440 > D-, T-, & He-induced Reactions & Scattering-- (1992-); TRANSFER REACTIONS
• ISSN: 0556-2813; 1089-490X
• DOI: 10.1103/PhysRevC.49.R1755

The masses of [sup 18]Ne, and of the [sup 14]O first excited state that dominates the astrophysical [sup 13]N([ital p],[gamma]) reaction rate, were measured using the [sup 16]O([sup 3]He,[ital n]) and [sup 12]C([sup 3]He,[ital n]) reactions. We found mass excesses of 5316.8[plus minus]1.5 keV for the [sup 18]Ne ground state and 13163.4[plus minus]2.0 keV for the first excited state of [sup 14]O. The [sup 14]O mass corresponds to an [sup 13]N([ital p],[gamma]) resonance energy of 528.8[plus minus]2.0 keV. This is consistent with the result from a recent [sup 13]N+[ital p] study, but disagrees with the previously accepted value. Implications for the thermonuclear [sup 13]N([ital p],[gamma]) rate are discussed.