✦ LIBER ✦

The role of electron-screening deformations in solar nuclear fusion reactions and the solar neutrino puzzle

✍ Scribed by Theodore E. Liolios

Publisher: Elsevier Science
Year: 2001
Tongue: English
Weight: 179 KB
Volume: 683
Category: Article
ISSN: 0375-9474
DOI: 10.1016/s0375-9474(00)00448-6

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✦ Synopsis

Thermonuclear fusion reaction rates in the solar plasma are enhanced by the presence of the electron cloud that screens fusing nuclei. The present work studies the influence of electronscreening deformations on solar reaction rates in the framework of the Debye-Hückel model. These electron-ion cloud deformations, assumed here to be static and axially symmetric, are shown to be able to considerably influence the solar neutrino fluxes of the pp and the CNO chains, with reasonable changes in the macroscopic parameters of the standard solar model (SSM). Various known deformation sources are discussed but none of them is found strong enough to have a significant impact on the SSM neutrino fluxes.

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This work was funded by the MOLYCELL European project (OFES 03.0681-1). We thank Ilkay Cesar and Robin Humphry-Baker for valuable discussions and Michel Schaer and Libero Zuppiroli from the Laboratory of Optoelectronics of Molecular Materials at EPFL where some of the measurements were performed.

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