12-20 July 2017
BEXCO
Asia/Seoul timezone
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Contribution

BEXCO - Room C(108)

[SH143] Charge Ratio of Low Energy Muons Derived from the Data on Variations of Muons during Thunderstorms

Speakers

  • Alexander LIDVANSKY

Primary authors

  • Alexander LIDVANSKY (Institute of Terrestrial Magnetism, Ionosphere and Radiowave Propagation RAN of N.V. Pushkov (IZMIRAN), Russia)

Co-authors

  • A.V. BELOV (Institute of Terrestrial Magnetism, Ionosphere and Radiowave Propagation RAN of N.V. Pushkov (IZMIRAN), Russia)
  • R.T. GUSHCHINA (Institute of Terrestrial Magnetism, Ionosphere and Radiowave Propagation RAN of N.V. Pushkov (IZMIRAN), Russia)
  • Eroshenko E.A. EROSHENKO (Institute of Terrestrial Magnetism, Ionosphere and Radiowave Propagation RAN of N.V. Pushkov (IZMIRAN), Russia)
  • M.S. PREOBRAZHENSKY (Institute of Terrestrial Magnetism, Ionosphere and Radiowave Propagation RAN of N.V. Pushkov (IZMIRAN), Russia)
  • V.G. YANKE (Institute of Terrestrial Magnetism, Ionosphere and Radiowave Propagation RAN of N.V. Pushkov (IZMIRAN), Russia)

Description

The effect of thunderstorm electric field on the muon intensity was observed for the first time in the experiment studying variations of cosmic rays at the Baksan Neutrino Observatory. It was demonstrated that the muon flux as a function of near-ground electric field could be represented by a second order polynomial in a rather wide range of field strengths (± 7 kV per meter). This curve is very stable and does not actually depend on strong field variations (including lightning activity). Theoretical analysis of this curve allowed us to derive several average parameters of the field distribution and particle flux in thunderstorm periods. The charge ratio of low energy (100 MeV) muons is one of such parameters.