First direct measurement of the {sup 23}Mg(p,gamma){sup 24}Al reaction

Journal Article · Thu Apr 15 00:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.045808· OSTI ID:21388985

Erikson, L; Greife, U ^[1]; Ruiz, C; Ames, F; Bricault, P; Buchmann, L; Davids, B; Davis, C; Dombsky, M; Galinski, N; Hager, U; Hutcheon, D A; Lassen, J; Martin, L; Ottewell, D F; Ruprecht, G; Teigelhoefer, A ^[2]; Chen, A A; Chen, J; Ouellet, C V ^[3]

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1. Department of Physics, Colorado School of Mines, Golden, Colorado 80401 (United States)
2. TRIUMF, Vancouver, British Columbia V6T 2A3 (Canada)
3. McMaster University, Hamilton, Ontario L8S 481 (Canada)

The lowest-energy resonance in the {sup 23}Mg(p,gamma){sup 24}Al reaction, which is dominant at classical nova temperatures, has been measured directly for the first time using the DRAGON recoil spectrometer. The experiment used a radioactive {sup 23}Mg beam (mixed within a significantly stronger {sup 23}Na beam) of peak intensity 5x10{sup 7} s{sup -1}, at the ISAC facility at TRIUMF. We extract values of E{sub R}=485.7{sub -1.8}{sup +1.3} keV and omegagamma=38{sub -15}{sup +21} meV from our data (all values in the center-of-mass frame unless otherwise stated). In addition, the experiment prompted a recalculation of the Q value for this reaction based on a revision of the {sup 24}Al mass. The effect on the uncertainties in the quantities of ejected {sup 22}Na and {sup 26}Al from oxygen-neon classical novae is discussed.

• OSTI ID: 21388985
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 81, Issue 4; Other Information: DOI: 10.1103/PhysRevC.81.045808; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM 24
ALUMINIUM 26
BEAMS
CENTER-OF-MASS SYSTEM
GAMMA DECAY
KEV RANGE 100-1000
MAGNESIUM 23 TARGET
MASS
NEON
NOVAE
OXYGEN
PROTON REACTIONS
Q-VALUE
RECOILS
RESONANCE
SODIUM 22
SODIUM 23
SPECTROMETERS
ALUMINIUM ISOTOPES
BARYON REACTIONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BINARY STARS
CHARGED-PARTICLE REACTIONS
DECAY
ELEMENTS
ENERGY
ENERGY RANGE
ERUPTIVE VARIABLE STARS
FLUIDS
GASES
HADRON REACTIONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KEV RANGE
LIGHT NUCLEI
MEASURING INSTRUMENTS
MILLISECONDS LIVING RADIOISOTOPES
NANOSECONDS LIVING RADIOISOTOPES
NONMETALS
NUCLEAR DECAY
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
RADIOISOTOPES
RARE GASES
SECONDS LIVING RADIOISOTOPES
SODIUM ISOTOPES
STABLE ISOTOPES
STARS
TARGETS
VARIABLE STARS
YEARS LIVING RADIOISOTOPES