Low-Energy resonances in the 22Ne(p,γ)23Na reaction directly observed at LUNA

8th European Summer School on Experimental Nuclear Astrophysics (Santa Tecla School)

物理学;天文学

Depalo, Rosanna^1

Dipartimento di Fisica e Astronomia, INFN Padova, via Marzolo 8, Padova

35131, Italy^1

关键词: AGB stars;    Classical novae;    Gas targets;    HPGe detectors;    Low-energy;    Nuclear astro-physics;    Sodium cycle;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/703/1/012017/pdf
DOI  :  10.1088/1742-6596/703/1/012017

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

The neon-sodium cycle of hydrogen burning influences the synthesis of the elements between20Ne and27Al in AGB stars and classical novae explosions. The22Ne(p,γ)23Na reaction rate is very uncertain because of a large number of unobserved resonances lying in the Gamow window. A new direct study of the22Ne(p,γ)23Na reaction has been performed at the Laboratory for Underground Nuclear Astrophysics (LUNA) using a windowless gas target and two HPGe detectors. Several resonances have been observed for the first time in a direct experiment.