Energy estimation of photon-induced extensive air showers*

* Talk given at the 8th International Moscow School of Physics

Abstract

The energies of ultra-high energy cosmic rays observed by AGASA experiment were estimated in assumption that the primary particle is hadronic. In present work we re-estimate the energies of highest energy events, assuming primary particle to be photon.

Keywords:

• Greisen-Zatsepin-Kuzmin (GZK) cut-off
• Akeno giant air shower array (AGASA)
• Landav-Pomerachuk-Migdal (LPM) effect
• Monte Carlo simulation
• Interaction in geomagnetic field

Acknowledgements

I would like to thank the Organizing Committee of 8th International Moscow School of Physics for organizing the remarkable school and for the great hospitality. I am indebted to V.A. Rubakov, D.S. Gorbunov, S.V. Troitsky, L.G. Dedenko and K. Shinozaki for useful discussions. This work was supported in part by INTAS 03-51-5112, GPRFNS-2184.2003.2 and CRDF RP1-2364-MO-02 grants.

Notes

* Talk given at the 8th International Moscow School of Physics

Additional information

Notes on contributors

G. I. Rubtsov

Talk given at the 8th International Moscow School of Physics