The (3)He((4)He, gamma)(7)Be reaction is the key process for the production of (7)Be and (8)B neutrinos in the Sun. We have designed a new experimental setup to study this reaction with high accuracy at low energies using two different experimental techniques. The first method consists in measuring the prompt capture gamma-ray transitions with an ultra-low background germanium detector heavily shielded and placed at close distance from a (3)He windowless gas target. With another fully shielded large-volume germanium detector we will also measure the beta-decay of the (7)Be residual nuclei. The aim of the experiment is to reduce the error on the astrophysical factor S(3,4) to 4%.

Towards a high-precision measurement of the 3He(α,γ)7Be cross section at LUNA / Costantini, H., Bemmerer, D., Bezzon, P., Bonetti, R., Broggini, C., Casanova, M.L., Confortola, F., Corvisiero, P., Cruz, J., Elekes, Z., Formicola, A., Fülop, Z.s., Gervino, G., Gustavino, C., Guglielmetti, A., Gyürky, G.y., Imbriani, G., Jesus, A.P., Junker, M., Lemut, A., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. A, HADRONS AND NUCLEI. - ISSN 1434-6001. - STAMPA. - 27:(2006), pp. 177-180. [10.1140/epja/i2006-08-026-5]

Towards a high-precision measurement of the 3He(α,γ)7Be cross section at LUNA

IMBRIANI, GIANLUCA;ROMANO, MARIO;
2006

Abstract

The (3)He((4)He, gamma)(7)Be reaction is the key process for the production of (7)Be and (8)B neutrinos in the Sun. We have designed a new experimental setup to study this reaction with high accuracy at low energies using two different experimental techniques. The first method consists in measuring the prompt capture gamma-ray transitions with an ultra-low background germanium detector heavily shielded and placed at close distance from a (3)He windowless gas target. With another fully shielded large-volume germanium detector we will also measure the beta-decay of the (7)Be residual nuclei. The aim of the experiment is to reduce the error on the astrophysical factor S(3,4) to 4%.
2006
Towards a high-precision measurement of the 3He(α,γ)7Be cross section at LUNA / Costantini, H., Bemmerer, D., Bezzon, P., Bonetti, R., Broggini, C., Casanova, M.L., Confortola, F., Corvisiero, P., Cruz, J., Elekes, Z., Formicola, A., Fülop, Z.s., Gervino, G., Gustavino, C., Guglielmetti, A., Gyürky, G.y., Imbriani, G., Jesus, A.P., Junker, M., Lemut, A., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. A, HADRONS AND NUCLEI. - ISSN 1434-6001. - STAMPA. - 27:(2006), pp. 177-180. [10.1140/epja/i2006-08-026-5]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/338893
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