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Your search keyword '"Broggini, C"' showing total 2 results
Start Over Author "Broggini, C" Region gran sasso d'italia (italy)
2 results on '"Broggini, C"'

1. The 25Mg(p, γ)26Al reaction at low astrophysical energies

Author

Strieder, F., Limata, B., Formicola, A., Imbriani, G., Junker, M., Bemmerer, D., Best, A., Broggini, C., Caciolli, A., Corvisiero, P., Costantini, H., DiLeva, A., Elekes, Z., Fülöp, Zs., Gervino, G., Guglielmetti, A., Gustavino, C., Gyürky, Gy., Lemut, A., and Marta, M. more...

Subjects
*RESONANCE, *MAGNESIUM, *BISMUTH compounds, *ASTROPHYSICS, *GERMANIUM diodes
Abstract

Abstract: In the present work we report on a new measurement of resonance strengths ωγ in the reaction 25Mg(p, γ)26Al at and 189 keV. This study was performed at the LUNA facility in the Gran Sasso underground laboratory using a 4π BGO summing crystal. For the first time the 92 keV resonance was directly observed and a resonance strength was determined. Additionally, the γ-ray branchings and strength of the 189 keV resonance were studied with a high resolution HPGe detector yielding an ωγ value in agreement with the BGO measurement, but 20% larger compared to previous works. [Copyright &y& Elsevier] more...

Published
2012
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2. The S-factor at solar energies: The prompt γ experiment at LUNA

Author

Costantini, H., Bemmerer, D., Confortola, F., Formicola, A., Gyürky, Gy., Bezzon, P., Bonetti, R., Broggini, C., Corvisiero, P., Elekes, Z., Fülöp, Zs., Gervino, G., Guglielmetti, A., Gustavino, C., Imbriani, G., Junker, M., Laubenstein, M., Lemut, A., Limata, B., and Lozza, V. more...

Subjects
*SOLAR energy, *NUCLEOSYNTHESIS, *BIG bang theory, *NUCLEAR reactions, *NUCLEAR physics
Abstract

Abstract: The process is a key reaction in both Big-Bang nucleosynthesis and p–p chain of Hydrogen Burning in Stars. A new measurement of the cross section has been performed at the INFN Gran Sasso underground laboratory by both the activation and the prompt γ detection methods. The present work reports full details of the prompt γ detection experiment, focusing on the determination of the systematic uncertainty. The final data, including activation measurements at LUNA, are compared with the results of the last generation experiments and two different theoretical models are used to obtain the S-factor at solar energies. [Copyright &y& Elsevier] more...

Published
2008
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