Level structure of {sup 21}Mg: Nuclear and astrophysical implications

Resonant elastic scattering of a radioactive {sup 20}Na beam incident upon protons in a polyethylene target has been used to probe the level structure of {sup 21}Mg above the proton decay threshold. Three states have been observed, and their properties deduced through analysis based on the R-matrix...

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Veröffentlicht in:	Physical review. C, Nuclear physics Nuclear physics, 2006-03, Vol.73 (3)
Hauptverfasser:	St Murphy, A.J., Aliotta, M., Davinson, T., Ruiz, C., Woods, P.J., D'Auria, J.M., Buchmann, L., Chen, A.A., Laird, A.M., Sarazin, F., Walden, P., Fulton, B.R., Pearson, J.E., Brown, B.A., Simon Fraser University, Burnaby, British Columbia V5A 1S6, TRIUMF, Vancouver, British Columbia V6T 2A3, University of York, York, YO10 5DD, National Superconducting Cyclotron Facility, Michigan State University, East Lansing, Michigan 48824
Format:	Artikel
Sprache:	eng
Schlagworte:	CAPTURE ELASTIC SCATTERING ENERGY LEVELS ENERGY-LEVEL TRANSITIONS HYDROGEN BURNING MAGNESIUM 21 NOVAE NUCLEAR DECAY NUCLEAR PHYSICS AND RADIATION PHYSICS NUCLEAR REACTION KINETICS POLYETHYLENES PROTON REACTIONS PROTON-NUCLEON INTERACTIONS PROTONS R MATRIX RESCATTERING RESONANCE SCATTERING SODIUM 20 X RADIATION
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Zusammenfassung:	Resonant elastic scattering of a radioactive {sup 20}Na beam incident upon protons in a polyethylene target has been used to probe the level structure of {sup 21}Mg above the proton decay threshold. Three states have been observed, and their properties deduced through analysis based on the R-matrix formalism. The results improve and extend previous studies of this nucleus. An estimate of the {sup 20}Na(p,{gamma}){sup 21}Mg reaction rate, including these new data, suggests this reaction will not play a significant role in explosive hydrogen burning in astrophysical sites such as novae and x-ray bursts.
ISSN:	0556-2813 1089-490X
DOI:	10.1103/PhysRevC.73.034320