Phys. Rev. Lett. 87, 041801 (2001) [4 pages]Observation of an Anomalous Number of Dimuon Events in a High Energy Neutrino BeamReceived 19 April 2001; published 6 July 2001 A search for long-lived neutral particles ( N0’s) with masses above 2.2GeV/c2 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 μμ, μe, and μπ. Three μμ events were observed over an expected standard model background of 0.069±0.010 events; no events were observed in the other modes. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.87.041801
DOI:
10.1103/PhysRevLett.87.041801
PACS:
14.80.-j, 12.60.Jv, 13.15.+g, 13.85.Rm
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.