Density and temperature conditions in many stellar core imply the presence of nonideal plasma e®ects with memory and long-range interactions between particles. This aspect suggests the possibility that stellar core could not be in a global thermodynamical equilibrium but satisfies the conditions of a metastable state with a stationary (nonextensive) power law distribution function among ions. We show that such a nonextensive statistical effect can imply relevant modifications on the temperature dependence of CNO nuclear reaction rates and on resonant reaction rates in astrophysical plasma.

Modified nuclear reaction rates in dense stellar plasma / Gervino, G.; Lavagno, Andrea; Quarati, Piero. - (2009). (Intervento presentato al convegno TAUP2009 International conference on Topics in Astroparticle and Underground Physics tenutosi a Laboratori Nazionali del Gran Sasso nel 1-5 July 2009).

Modified nuclear reaction rates in dense stellar plasma

LAVAGNO, Andrea;QUARATI, Piero
2009

Abstract

Density and temperature conditions in many stellar core imply the presence of nonideal plasma e®ects with memory and long-range interactions between particles. This aspect suggests the possibility that stellar core could not be in a global thermodynamical equilibrium but satisfies the conditions of a metastable state with a stationary (nonextensive) power law distribution function among ions. We show that such a nonextensive statistical effect can imply relevant modifications on the temperature dependence of CNO nuclear reaction rates and on resonant reaction rates in astrophysical plasma.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2500632
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