Search for Magnetic Monopoles at the Tevatron Collider

A search for heavily ionizing particles produced in p collisions at √s = 1.8 TeV was performed at the Fermilab Tevatron collider using plastic track detectors. No highly ionizing particles were observed. The experiment places a limit on the production of magnetic monopoles with mass m < 850 GeV at σ < 2·10-34 cm2 (95% confidence level). The level of radiation present in the collider tunnel is discussed.