Data di Pubblicazione:
2020
Citazione:
New direct measurement of the Li-6(p, gamma)Be-7 cross-section at LUNA / R. Depalo. - In: IL NUOVO CIMENTO C. - ISSN 2037-4909. - 43:4-5(2020 Oct), pp. 108.1-108.7. [10.1393/ncc/i2020-20108-2]
Abstract:
Li-6+p fusion reactions take part in primordial nucleosynthesis and in the early stages of stellar evolution, prior to the main sequence. While the Li-6(p,alpha)He-3 cross-section is relatively well known, the Li-6(p,gamma)Be-7 reaction is much debated, especially since a recent observation of a broad resonance at center-of-mass energy of 195 keV. Such resonance would correspond to an excited state of Be-7 which has neither been observed before, nor supported by theoretical models. In order to verify the existence of such resonance, a new study of the Li-6(p,gamma)Be-7 and Li-6(p,alpha)He-3 reactions was performed by the LUNA Collaboration at Gran Sasso National Laboratories. The present work provides an overview of the LUNA experiment and a description of the setup and measurement strategy adopted for the Li-6+p experimental campaign.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
R. Depalo
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