An underground search for anomalous penetrating particles such as massive magnetic monopoles

T. Mashimo, S. Orito, Kiyotomo Kawagoe, S. Nakamura, M. Nozaki

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

We have searched for anomalous cosmic-ray particles in a wide velocity range (3 × 10-4 < β < 1) by accurately measuring the time of flight and the dE/dx of downward and upward particle with six layers of scintillator hodoscopes placed 250 m underground. No anomalous candidate has been found other than the relativistic muons, setting an upper limit on the flux of 1.5 × 10-12 cm-12 s-2 sr-1 for magnetic monopoles in the velocity range 6 × 10-4 < β < 1. Similar upper limits on the flux are obtained also for slow massive integrally- or fractionally-charged particles and also for relativistic fractionally-charged leptons.

Original languageEnglish
Pages (from-to)327-332
Number of pages6
JournalPhysics Letters B
Volume128
Issue number5
DOIs
Publication statusPublished - Sep 1 1983
Externally publishedYes

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corpuscular radiation
magnetic monopoles
hodoscopes
scintillation counters
leptons
muons
cosmic rays
charged particles

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

An underground search for anomalous penetrating particles such as massive magnetic monopoles. / Mashimo, T.; Orito, S.; Kawagoe, Kiyotomo; Nakamura, S.; Nozaki, M.

In: Physics Letters B, Vol. 128, No. 5, 01.09.1983, p. 327-332.

Research output: Contribution to journalArticle

Mashimo, T. ; Orito, S. ; Kawagoe, Kiyotomo ; Nakamura, S. ; Nozaki, M. / An underground search for anomalous penetrating particles such as massive magnetic monopoles. In: Physics Letters B. 1983 ; Vol. 128, No. 5. pp. 327-332.
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