APS » PROLA » Phys. Rev. Lett. » Volume 83 » Issue 24

Phys. Rev. Lett. 83, 4943 - 4946 (1999)

Search for Neutral Heavy Leptons in a High-Energy Neutrino Beam
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A. Vaitaitis et al.
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Received 4 August 1999

A search for neutral heavy leptons (NHLs) has been performed using an instrumented decay channel at the NuTeV (E-815) experiment at Fermilab. The data were examined for NHLs decaying into muonic final states ( μμν, μeν, μπ, and μρ); no evidence has been found for NHLs in the 0.25–2.0 GeV mass range. This analysis places limits on the mixing of NHLs with standard light neutrinos at a level up to an order of magnitude more restrictive than previous search limits in this mass range.


©1999 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v83/p4943
DOI: 10.1103/PhysRevLett.83.4943
PACS: 13.15.+g, 13.35.Hb, 14.60.Pq, 14.80.-j

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