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SUMMARY:Generalized compound diffusion model of solar cosmic rays accelera
 ted in corotating interaction region
DTSTART;VALUE=DATE-TIME:20161011T130000Z
DTEND;VALUE=DATE-TIME:20161011T131500Z
DTSTAMP;VALUE=DATE-TIME:20260713T092120Z
UID:indico-contribution-693@cern.ch
DESCRIPTION:Speakers: Alexander Byzykchi (Ulyanovsk State University)\nWe 
 solve the inverse problem of parameter determination for the generalized c
 ompound diffusion model from the simulation results [Pucci F. et al. Month
 ly Notices of the Royal Astron. Soc. (2016) 459\, 3\, 3395] for particle t
 ransport in the turbulent magnetic field (TMF). We find  the distribution 
 density p(x) of the parallel free path along a regular TMF component and t
 he parameters of the field line wandering (FLW). Density p(x) has the form
  of a tempered power law function with an exponent close to 0.5 and the tr
 uncation parameter\, depending on the Larmor radius\, turbulence level\, i
 ntermittency and width of the inertial interval. Parallel motion is associ
 ated with a stochastic process of tempered superdiffusion showing the tran
 sition from the Levy stable process to Gaussian one. Perpendicular diffusi
 on is determined by the character of  FLW\, which is modeled by the fracti
 onal Brownian motion with Hurst exponent H> 1/2. The resulting random proc
 ess is a generalization of the compound diffusion model for particle trans
 port in a quasi-regular magnetic field. We use this model to assess the SC
 R fluxes accelerated in corotating interaction regions of solar wind and t
 o study anomalous diffusion observed in several experiments.\n\nhttps://in
 dico.particle.mephi.ru/event/4/contributions/693/
LOCATION:Milan Hotel Verdi
URL:https://indico.particle.mephi.ru/event/4/contributions/693/
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