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.
- Jesus, A. P.
- Junker, M.
- Lemut, A.
- Marta, M.
- Menegazzo, R.
- Prati, P.
- Roca, E.
- Rolfs, C.
- Rossi Alvarez, C.
- Schümann, F.
- Somorjai, E.
- Straniero, O.
- Strieder, F.
- Terrasi, F.
- Trautvetter, H. P.
- IMBRIANI, GIANLUCA
- ROMANO, MARIO
Publication date
January 2006
DOI ISSN
1434-6001 Citation count (estimate)
4Abstract
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%
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