https://doi.org/10.1140/epja/i2005-10175-2
Original Article
First direct measurement of the total cross-section of 12C(α,γ)16O
1
Institut für Experimentalphysik III, Ruhr-Universität Bochum, Bochum, Germany
2
Dipartimento di Scienze Fisiche, Università Federico II, Napoli and INFN, Napoli, Italy
3
Dipartimento di Scienze Ambientali, Seconda Università di Napoli, Caserta and INFN, Napoli, Italy
4
Dipartimento di Scienze della Vita, Seconda Università di Napoli, Caserta and INFN, Napoli, Italy
* e-mail: strieder@ep3.rub.de
Received:
29
September
2005
Accepted:
21
November
2005
Published online:
29
November
2005
The total cross-section of 12C(α,γ)16O was measured for the first time by a direct and ungated detection of the 16O recoils. This measurement in inverse kinematics using the recoil mass separator ERNA in combination with a windowless He gas target allowed to collect data with high precision in the energy range E = 1.9 to 4.9 MeV. The data represent new information for the determination of the astrophysical S(E) factor.
PACS: 25.55.-e 3H-, 3He-, and 4He-induced reactions – / 26.20.+f Hydrostatic stellar nucleosynthesis –
© Società Italiana di Fisica and Springer-Verlag, 2005
