1,721,015 research outputs found
Fusion reactions in plasmas as probe of the high-momentum tail of particle distributions
No full textIn fusion reactions, the Coulomb barrier selects particles from the high-momentum part of the distribution. Therefore, small variations of the high-momentum tail of the velocity distribution can produce strong effects on fusion rates. In plasmas several potential mechanisms exist that can produce deviations from the standard Maxwell-Boltzmann distribution. Quantum broadening of the energy-momentum dispersion relation of the plasma quasi-particles modifies the high-momentum tail and could explain the fusion-rate enhancement observed in low-energy nuclear reaction experiments. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 200605.20.Dd Kinetic theory, 25.60.Pj Fusion reactions, 51.10.+y Kinetic and transport theory of gases, 52.70.Nc Particle measurements,
Deuterium burning in Jupiter interior
No full textWe show that moderate deviations from the Maxwell-Boltzmann energy distribution can increase deuterium reaction rates enough to contribute to the heating of Jupiter. These deviations are compatible with the violation of extensivity expected from temperature and density conditions inside Jupiter
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