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A study of the effect of geomagnetic field on extensive air showers with small arrays

Bahmanabadi, M ; Sharif University of Technology | 2002

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  1. Type of Document: Article
  2. DOI: 10.1023/A:1022038816555
  3. Publisher: 2002
  4. Abstract:
  5. We have studied Extensive Air Showers (EAS) with two small arrays of 1 m2 scintillation detectors in Tehran, 1200 m above sea level. The distribution of air showers in zenith and azimuth angles has been studied and a cosn θ distribution with n = 7.2×0.2 was obtained for zenith angle distribution. An asymmetry has been observed in the azimuthal distribution of EAS of cosmic rays because of magnetic field of the Earth. Amplitudes of the first and the second harmonics of observed distribution depend on zenith angle as AI≈(0.02 + 0.35 sin2 θ)×0.02, and AII(0.03 + 0.42 sin4 θ)×0.03. Meanwhile, the uncertainties arising from the instrument, transit location of shower particles in the scintillator and fluctuations in the shower front have been calculated
  6. Keywords:
  7. Cosmic rays ; Extensive Air Shower ; Geomagnetic field
  8. Source: Experimental Astronomy ; Volume 13, Issue 1 , 2002 , Pages 39-57 ; 09226435 (ISSN)
  9. URL: https://inspirehep.net/literature/608624