Observation of an Anomalous Number of Dimuon Events in a High Energy Neutrino Beam
- 6 July 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 87 (4) , 041801
- https://doi.org/10.1103/physrevlett.87.041801
Abstract
A search for long-lived neutral particles ( ’s) with masses above that decay into at least one muon has been performed using an instrumented decay channel at the NuTeV experiment at Fermilab. Data were examined for particles decaying into the final states , , and . Three events were observed over an expected standard model background of events; no events were observed in the other modes.
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