Experimental limits on heavy lepton production by neutrinos

Journal Article · Mon Jan 16 04:00:00 EST 1978 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.40.144· OSTI ID:5065409

Cnops, A M; Connolly, P L; Kahn, S A; Kirk, H G; Murtagh, M J; Palmer, R B; Samios, N P; Tanaka, M; Tso, T T; Baltay, C; Caroumbalis, D; French, H; Hibbs, M; Hylton, R; Kalelkar, M; Orance, W; Schmidt, E

We present upper limits on the production of heavy leptons (L+-) by neutrinos via the process ..nu../sub parallel/ + Ne..-->.. L+- + ..., L+- ..-->.. e +- + ..nu.. + ..nu..-bar. These limits imply that the L/sup -/ and L/sup +/, if they couple in full strength to ..nu../sub ..mu../ are heavier than 7.5 and 9 GeV, respectively. They also imply that the coupling strength ..nu../sub ..mu../ to the recently discovered 1.9-GeV heavy lepton tau is less than 0.025 of the normal ..nu mu.. - ..mu.. coupling.

• Research Organization: Brookhaven National Laboratory, Upton, New York 11973
• OSTI ID: 5065409
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 40:3; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
651425 -- Nuclear Properties & Reactions
A=20-38
Experimental-- Nuclear Reactions & Scattering-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BASIC INTERACTIONS
CHARGED-CURRENT INTERACTIONS
COUPLING
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
HEAVY LEPTONS
INTERACTIONS
LEPTON NUMBER
LEPTON REACTIONS
LEPTONIC DECAY
LEPTONS
LIMITING VALUES
MASS
MASSLESS PARTICLES
MUON NEUTRINOS
NEON 20 TARGET
NEUTRINO REACTIONS
NEUTRINOS
NUCLEAR REACTIONS
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
POSTULATED PARTICLES
REST MASS
TARGETS
WEAK INTERACTIONS
WEAK PARTICLE DECAY