Nuclear problems in astrophysical q-plasmas and environments

Details Nuclear problems in astrophysical q-plasmas and environments Nuclear problems in astrophysical q-plasmas and environments

2009-06-18

arxiv.org/abs/0906.3430v1

Braz.J.Phys.39:380-387,2009

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

8 pages, 1 figure, presented on Next08 conference. Version accepted on Brazilian Journal of Physics

Scientific paper

Experimental measurements in terrestrial laboratory, space and astrophysical observations of variation and fluctuation of nuclear decay constants, measurements of large enhancements in fusion reaction rate of deuterons implanted in metals and electron capture by nuclei in solar core indicate that these processes depend on the environment where take place and possibly also on the fluctuation of some extensive parameters and eventually on stellar energy production. Electron screening is the first important environment effect. We need to develop a treatment beyond the Debye-Huckel screening approach, commonly adopted within global thermodynamic equilibrium. Advances in the description of these processes can be obtained by means of q-thermostatistics and/or superstatistics for metastable states. This implies to handle without ambiguities the case q<1.

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