https://doi.org/10.1051/epjconf/20159303004
Low-energy resonances in the 22Ne(p,γ)23Na reaction directly observed at LUNA
1 Dipartimento di Fisica, Università degli studi di Genova and INFN Genova, 1646 Genova, Italy
2 Dipartimento di Fisica e Astronomia, Università degli studi di Padova and INFN Padova, 35131 Padova, Italy
a e-mail: francesca.cavanna@ge.infn.it
b e-mail: rosanna.depalo@pd.infn.it
Published online: 28 May 2015
The 22Ne(p,γ)23Na reaction is involved in the hydrogen burning neon-sodium (NeNa) cycle. This cycle is active in asymptotic giant branch stars (AGB) as well as in novae.
In the Gamow window temperature range (30MK < T < 420 MK corresponding to proton center of mass energies 40 keV < E < 430 keV), the 22Ne(p,γ)23Na reaction rate is highly uncertain because of the contribution of a large number of resonances never measured directly.
A study of this reaction has been carried out at the Laboratory for Underground Nuclear Astrophysics (LUNA), in the Gran Sasso National Laboratory, using a windowless gas target and two high-purity germanium detectors. Several resonances have been observed for the first time in a direct experiment.
© Owned by the authors, published by EDP Sciences, 2015
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
