Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2011-12-14
Phys. Lett. B 707 (2012) 60
Physics
Nuclear Physics
Nuclear Experiment
6 pages, 4 figures, accepted for publication in Physics Letters B
Scientific paper
10.1016/j.physletb.2011.12.029
In the present work we report on a new measurement of resonance strengths in the reaction 25Mg(p,gamma)26Al at E_cm= 92 and 189 keV. This study was performed at the LUNA facility in the Gran Sasso underground laboratory using a 4pi BGO summing crystal. For the first time the 92 keV resonance was directly observed and a resonance strength omega-gamma=(2.9+/-0.6)x10E-10 eV was determined. Additionally, the gamma-ray branchings and strength of the 189 keV resonance were studied with a high resolution HPGe detector yielding an omega-gamma value in agreement with the BGO measurement, but 20% larger compared to previous works.
Alvarez Rossi C.
Bemmerer Daniel
Best Adolf
Broggini Carlo
Caciolli Antonio
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