Astronomy and Astrophysics – Astrophysics
Scientific paper
May 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aps..apr.j8008l&link_type=abstract
American Physical Society, April Meeting, 2004, May 1-4, 2004, Denver, Colorado April 2004, MEETING ID: APR04, abstract #J8.008
Astronomy and Astrophysics
Astrophysics
Scientific paper
Recent experiments around the world have convincingly established that an anonymously high electron screening effect on nuclear fusion rate occurs during accelerator-driven low energy (< 10 kV) ion bombardment of solid targets [1,2]. Results from the LUNA (Laboratory for Underground Nuclear Astrophysics) collaboration, and the Kasagi group at Tohoku University demonstrate that the screening effects become particularly important for E/Ue < 100 (where E = ion energy and Ue = electron-screening potential energy). The increase in fusion cross-section is much larger than that predicted by the ordinary theory of screening from band electrons alone. The discrepancy is profound for understanding reactions involved in nucleosynthesis of the elements and the interpretation of astrophysical data [1]. In this paper, we propose an alternate mechanism associated with the atomic core charge distribution in the solid-state target. REFERENCES [1] F. Strieder, et al., Naturwissenschaften 88 (2000) pp. 461-467. [2] H. Yuki, J. Kasagi, A.G. Lipson, et al., JETP Lett. 68 (1998) p.823.
Hora Heinz
Lipson Andrei
Luo Nie
Miley George
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