Non-extensive resonant reaction rates in astrophysical plasmas
arXiv:nucl-th/0312105 · doi:10.1140/epja/i2004-10006-0
Abstract
We study two different physical scenarios of thermonuclear reactions in stellar plasmas proceeding through a narrow resonance at low energy or through the low energy wing of a wide resonance at high energy. Correspondingly, we derive two approximate analytical formulae in order to calculate thermonuclear resonant reaction rates inside very coupled and non ideal astrophysical plasmas in which non-extensive effects are likely to arise. Our results are presented as simple first order corrective factors that generalize the well known classical rates obtained in the framework of Maxwell-Boltzmann statistical mechanics. As a possible application of our results, we calculate the dependence of the total corrective factor with respect to the energy at which the resonance is located, in an extremely dense and non ideal carbon plasma.
arXiv comment5 pages, 1 figure
References in corpus (5)
- Solar reaction rates, non-extensivity and quantum uncertainty
- Anomalous diffusion modifies solar neutrino fluxes
- Enhancement of Resonant Thermonuclear Reaction Rates in Extremely Dense Stellar Plasmas
- Potential resonant screening effects on stellar C12+C12 reaction rates
- The Properties of Matter in White Dwarfs and Neutron Stars
Cited by in corpus (9)
- Nonextensive statistical effects in protoneutron stars
- A nonextensive approach for the instability of current-driven ion-acoustic waves in space plasma
- Nonextensive statistical effects in the quark-gluon plasma formation at relativistic heavy-ion collisions energies
- Modified Debye-Huckel Electron Shielding and Penetration Factor
- Nonextensive statistical effects in the hadron to quark-gluon phase transition
- Nonextensive statistical effects and strangeness production in hot and dense nuclear matter
- Nonextensive Nuclear Liquid-Gas Phase Transition
- Collisional cross sections and momentum distributions in astrophysical plasmas: dynamics and statistical mechanics link
- Crab pulsar spectrum: a non-extensive approach