LNGS: D. BEMMERER - 22NE(P,GAMMA)23NA REACTION STUDIED AT LUNA: RESULTS FROM THE GERMANIUM DETECTOR BASED PART OF THE EXPERIMENT
LABORATORI NAZIONALI DEL GRAN SASSO
The 22Ne(p,gamma)23Na reaction takes part in the neon-sodium cycle of hydrogen burning. This cycle is active in asymptotic giant branch stars as well as in novae and contributes to the nucleosynthesis of neon and sodium isotopes. In order to reduce the uncertainties in the predicted nucleosynthesis yields, new experimental efforts to measure the 22Ne(p,γ)23Na cross section directly at the astrophysically relevant energies are needed. The seminar talk will report on the recently concluded first phase of the 22Ne(p,γ)23Na experiment at LUNA. Using a windowless, isotopically enriched 22Ne gas target and two high-purity germanium detectors, selected, previously unobserved low-energy resonances were studied. The preliminary results will be summarized, and an outlook on the second phase of the experiment with a 4pi summing detector will be given. ------------------------------------------ Daniel Bemmerer Helmholtz-Zentrum Dresden-Rossendorf Germany

DATA: 01-07-2015

Sito Collegato : http://agenda.infn.it/event/cfa_bemmerer

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