Search for Neutral Heavy Leptons in a High-Energy Neutrino Beam

Journal Article · Mon Dec 13 04:00:00 EST 1999 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.83.4943· OSTI ID:20217838

Vaitaitis, A ^[1]; Drucker, R B ^[2]; Formaggio, J ^[1]; Koutsoliotas, S ^[1]; Adams, T ^[3]; Alton, A ^[3]; Avvakumov, S ^[4]; Barbaro, L de ^[5]; Barbaro, P de ^[4]; Bernstein, R H ^[6]

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1. Columbia University, New York, New York 10027 (United States)
2. University of Oregon, Eugene, Oregon 97403 (United States)
3. Kansas State University, Manhattan, Kansas 66506 (United States)
4. University of Rochester, Rochester, New York 14627 (United States)
5. Northwestern University, Evanston, Illinois 60208 (United States)
6. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)

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 ({mu}{mu}{nu} , {mu}e{nu} , {mu}{pi} , and {mu}{rho} ); 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. (c) 1999 The American Physical Society.

• OSTI ID: 20217838
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 24 Vol. 83; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRONS
EXPERIMENTAL DATA
HADRONIC PARTICLE DECAY
LEPTONS
MUONS
NEUTRINO OSCILLATION
NEUTRINOS
PIONS
STANDARD MODEL