Search for nucleon decay with final states [formula presented] and [formula presented] using Soudan 2

D. Wall, W. W.M. Allison, G. J. Alner, D. S. Ayres, W. L. Barrett, C. Bode, P. M. Border, J. H. Cobb, R. Cotton, H. Courant, J. Chung, D. M. Demuth, T. H. Fields, H. R. Gallagher, M. C. Goodman, R. Gran, T. Joffe-Minor, T. Kafka, S. M.S. Kasahara, W. LeesonP. J. Litchfield, W. A. Mann, M. L. Marshak, R. H. Milburn, W. H. Miller, L. Mualem, A. Napier, W. P. Oliver, G. F. Pearce, E. A. Peterson, D. A. Petyt, L. E. Price, K. Ruddick, M. Sanchez, J. Schneps, A. Stassinakis, J. L. Thron, S. P. Wakely, N. West

Research output: Contribution to journalArticlepeer-review


We have searched for nucleon decay into five two-body final states using a 4.4 kiloton-year fiducial exposure of the Soudan 2 iron tracking calorimeter. For proton decay into the fully visible final states (Formula presented) and (Formula presented) we observe zero and one event, respectively, that satisfy our search criteria for nucleon decay. The lifetime lower limits (Formula presented) thus implied are (Formula presented) and (Formula presented) at 90% confidence level. For neutron decay into (Formula presented) we obtain the lifetime lower limit (Formula presented) Limits are also reported for neutron decay into (Formula presented) and for proton decay into (Formula presented).

Original languageEnglish (US)
Pages (from-to)11
Number of pages1
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number9
StatePublished - 2000

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