Penetration Factor for Nuclear Fusion Reaction in Nonthermal Astrophysical Plasmas

Publications of the Astronomical Society of Japan

Ki, Dai-Han¹  Jung, Young-Dae² 

[1] Department of Applied Physics, Hanyang University, Ansan, Kyunggi-Do 426-791, South Korea;Department of Applied Physics, Hanyang University, Ansan, Kyunggi-Do 426-791, South Korea University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA

关键词: "nuclear data";    "nuclear processes";    plasmas;   

DOI  :  10.1093/pasj/63.1.209

学科分类：天文学(综合)

来源: Oxford University Press

【 摘 要 】

ThenonthermaleffectsonthenuclearfusionreactionprocessareinvestigatedinLorentzianastrophysicalplasmas.TheclosedexpressionoftheclassicalturningpointinLorentzianplasmasisobtainedbytheLambert$$W$$-function.UsingtheWKBanalysiswiththeeffectivescreeninglength,theclosedexpressionsofthefusionpenetrationfactorandthecrosssectionforthenuclearfusionreactioninLorentzianplasmasareobtainedasfunctionsofthespectralindex,relativekineticenergy,andplasmaparameters.ItisshownthatthenonthermalcharacteroftheLorentzianplasmaenhancesthefusionpenetrationfactor.Inaddition,thenonthermaleffectonthepenetrationfactorisfoundtobemoresignificantinplasmaswithhigherdensities.Itwouldbeexpectedthatthefusionreactionratesofthe$$p$$–$$p$$chainandtheCNOcycleinnonthermalplasmasarealwaysgreaterthanthoseinthermalMaxwellianplasmas.

【 授权许可】

Unknown