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arXiv · hep-ex/0002029

A Search for Lightly Ionizing Particles with the MACRO Detector

MACRO Collaboration
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Abstract

A search for lightly ionizing particles has been performed with the MACRO detector. This search was sensitive to particles with charges between $\fractional{5}$$e$ and close to the charge of an electron, with $β$ between approximately 0.25 and 1.0. Unlike previous searches both single track events and tracks buried within high multiplicity muon showers were examined. In a period of approximately one year no candidates were observed. Assuming an isotropic flux, for the single track sample this corresponds to a 90% C.L. upper flux limit $Φ\leq 9.2 \times 10^{-15} cm^{-2} sec^{-1} sr^{-1}$ .

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MACRO Collaboration. 2000-04-06. A Search for Lightly Ionizing Particles with the MACRO Detector. https://doi.org/10.1103/physrevd.62.052003

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