A new study of low-energy (p,\u3b3) resonances on Magnesium isotopes
- B. Limata
- F. Strieder
- A. Formicola
- G. Imbriani
- M. Junker
- H. W. Becker
- D. Bemmerer
- A. Best
- R. Bonetti
- C. Broggini
- A. Caciolli
- P. Corvisiero
- H. Costantini
- A. Di Leva
- Z. Elekes
- Z. Fu\u308l\u308op
- G. Gervino
- A. Guglielmetti
- C. Gustavino G. Gyu\u308rky
- A. Lemut
- M. Marta
- C. Mazzocchi
- R. Menegazzo
- P. Prati
- V. Roca
- C. Rolfs
- C. Rossi Alvarez
- C. Salvo
- E. Somorjai
- O. Straniero
- F. Terrasi
- H. P. Trautvetter
DOIAbstract
Proton captures on Mg isotopes play an important role in the Mg-Al cycle active in stellar H-shell burning. In particular, the strengths of low-energy resonances with E<200 keV in 25Mg(p,\u3b3)26Al determine the production of 26Al and a precise knowledge of these nuclear data is highly desirable. Absolute measurements at such low energies are often very difficult and hampered by \u3b3-ray background as well as changing target stoichiometry during the measurements. The latter problem can be partly avoided using higher-energy resonances of the same reaction as a normalization reference. Hence the parameters of suitable resonances have to be studied with adequate precision. In the present work we report on new measurements of the resonance str...
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