Modified CNO nuclear reaction rates in dense stellar plasma

Citation
G. Gervino et al., Modified CNO nuclear reaction rates in dense stellar plasma, NUCL PHYS A, 688(1-2), 2001, pp. 126C-129C
Citations number
11
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS A
ISSN journal
03759474 → ACNP
Volume
688
Issue
1-2
Year of publication
2001
Pages
126C - 129C
Database
ISI
SICI code
0375-9474(20010521)688:1-2<126C:MCNRRI>2.0.ZU;2-K
Abstract
It has been shown by Galitskii and Yakimets that in a dense plasma, like th e stellar core, the tunneling particles undergo simultaneous collisions wit h other particles and, due to quantum uncertainty effects, the particles di stribution function over momenta acquires a non-Maxwellian power-like tail even under thermodynamic equilibrium. We show that these many-body effects imply a strongly modification of the nuclear CNO reaction rates which are, however, strongly modulated by taking into account the correct non-extensiv e thermostatistical framework when memory effects and long range force are not negligible. These statistical features match the plasma characteristic of weak non-ideal stellar plasma like solar interior.