Abstract
The underground Soudan-1 nucleon decay experiment can measure the velocities of slowly moving particles if they can be detected by ionization at a level 0.5 times that of a relativistic muon. Magnetic monopoles predicted by grand unified theories should satisfy this condition if their velocities are greater than 10-3c. During a live time of 0.41 yr, no candidate has been observed, implying a 90%-confidence-level limit on the flux of such objects of <4.1×10-13 cm-2 sr-1 s-1 for velocities between 10-3c and 10-2c.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 655-658 |
| Number of pages | 4 |
| Journal | Physical review letters |
| Volume | 50 |
| Issue number | 9 |
| DOIs | |
| State | Published - 1983 |
| Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy