The cross section of 3He(3He,2p)4He measured at solar energies

Autor:	J. M. Lambert, S. Zavatarelli, G. Gervino, P. Prati, C. Rolfs, H. P. Trautvetter, A. D'Alessandro, C. Gustavino, C. Arpesella, P. Corvisiero, Giovanni Fiorentini, M. Junker, W.S. Rodney, Uwe Greife, E. Bellotti, A. Fubini, Carlo Broggini
Rok vydání:	1999
Předmět:	Physics Nuclear physics Nuclear and High Energy Physics Range (particle radiation) Cross section (physics) Projectile Extrapolation Electron Nuclide Atomic physics Resonance (particle physics) Atomic and Molecular Physics and Optics
Zdroj:	Scopus-Elsevier
ISSN:	0920-5632
DOI:	10.1016/s0920-5632(98)00458-7
Popis:	We report on the status of the 3He(3He,2p)4He experiment at the underground accelerator facility LUNA (Gran Sasso). The lowest projectile energies for the measured cross section correspond already to energies below the center of the solar Gamow peak (E0=22 keV). The data provide no evidence for the existence of a hypothetical resonance in the energy range investigated. Although no extrapolation is needed anymore (except for energies at the low-energy tail of the Gamow peak), the data must be corrected for the effects of electron screening, clearly observed the first time for the 3He(3He,2p)4He reaction. The effects are however larger than expected and not understood, leading presently to the largest uncertainty on the quoted S(0) value for bare nuclides (=5.40 MeVb).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5dfa71edf5679c69a15b405cb5d96511 https://doi.org/10.1016/s0920-5632(98)00458-7 Zobrazit plný text záznamu Full Text from ScienceDirect