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Results from the Soudan 2 detector

Conference ·
OSTI ID:6936479
The Soudan 2 underground detector is a large fine-grained tracking calorimeter comprised of long drift tubes read out by proportional wires. It is surrounded by a proportional tube shield. Preliminary nucleon decay results with 0.5 fiducial kT-yr exposure give 90% CL lower limits of [tau]/B > 4.5 [times] 10[sup 30]yr for the mode p [yields] K[sup +][nu]. A search for GUT magnetic monopoles making highly ionizing tracks yielded a 90% CL upper flux limit of 8.7 [times] 10[sup [minus]15] cm[sup [minus]2]s[sup [minus]1]sr[sup [minus]1] for monopole velocities of [beta] > 2 [times] 10[sup [minus]3] in data taken over almost three years.
Research Organization:
Argonne National Lab., IL (United States)
Sponsoring Organization:
DOE; USDOE, Washington, DC (United States)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
6936479
Report Number(s):
ANL-HEP-CP-92-85; CONF-920837--8; ON: DE93002777
Country of Publication:
United States
Language:
English