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Title: Interaction of ultra relativistic $${e}^{-}{e}^{+}$$ fireball beam with plasma

Journal Article · · New Journal of Physics
 [1];  [2]; ORCiD logo [3];  [3]; ORCiD logo [3]
  1. Universidade de Lisboa, (Portugal). Instituto Superior Técnico. Instituto de Plasmas e Fusão Nuclear. GoLP; OSTI
  2. Max Planck Inst. fuer Physik und Astrophysik, Munich (Germany)
  3. Universidade de Lisboa, (Portugal). Instituto Superior Técnico. Instituto de Plasmas e Fusão Nuclear. GoLP

Ab initio simulations of the propagation in a plasma of a soon to be available relativistic electron–positron beam or fireball beam provide an effective mean for the study of microphysics relevant to astrophysical scenarios. We show that the current filamentation instability associated with some of these scenarios reaches saturation after only 10 cm of propagation in a typical laboratory plasma with a density~1017 cm-3 . The different regimes of the instability, from the purely transverse to the mixed mode filamentation, can be accessed by varying the background plasma density. The instability generates large local plasma gradients, intense transverse magnetic fields, and enhanced emission of radiation. We suggest that these effects may be observed experimentally for the first time.

Research Organization:
Univ. of Southern California, Los Angeles, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
FG02-92ER40745
OSTI ID:
1800774
Journal Information:
New Journal of Physics, Journal Name: New Journal of Physics Journal Issue: 1 Vol. 22; ISSN 1367-2630
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

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