Search for magnetic monopoles at the CERN Intersecting Storage Rings

In a search for magnetic monopoles produced in high-energy pp collisions, a series of metallic collectors was exposed at an intersection region of the CERN Intersecting Storage Rings to an integrated luminosity Lt approximately=7.2*10/sup 37/ cm/sup -2/. The search was sensitive to poles with a mass m/sub g/<or approximately=30 GeV. For m/sub g/<20 GeV, the search yielded an upper-limit cross section of sigma <1.3*10/sup -37/ cm/sup 2/ (95% confidence level) for 0.2<or approximately=g<or approximately=1.2 Dirac magnetic charges; for 1.2<g<24 the limit is sigma <or approximately=4*10/sup -37/ cm/sup 2/. (14 refs).