A number of extremely high energy cosmic ray events have been observed by various collaborations. The existence of such events, above the Greisen-Zatsepin-Kuzmin (GZK) cut-off has to be explained by a top-down scenario involving exotic physics. Yet the results reported depend heavily on Monte Carlo procedures. The LHCf experiment will provide important data to calibrate the codes used in air shower simulations.
|ジャーナル||Acta Physica Polonica B|
|号||3 PART 2|
|出版ステータス||Published - 2007 3月|
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