Phys. Rev. D 40, 2163–2171 (1989)Experimental study of muon bundles observed in the Fréjus detectorReceived 5 May 1989; published in the issue dated 1 October 1989 The present study is based on a sample of 407 775 single muons and 12 559 muon bundles with zenith angles smaller than 60°, observed in the 12.3m×6m×6m Fréjus proton-decay detector, at a depth of 4850 hg/cm2. The variation of the vertical muon intensity with depth is given. Using a maximum-likelihood method, the muon lateral distribution of underground bundles is investigated as a function of muon multiplicity and zenith angle. The same method yields the true multiplicity distribution at the site depth, corrected for all detection effects. © 1989 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.40.2163
DOI:
10.1103/PhysRevD.40.2163
PACS:
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