Limits on leptonic right-handed currents in E/sub 6/ theories

Journal Article · Tue Dec 01 04:00:00 EST 1987 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.36.3387· OSTI ID:5510865

Singh, S; Sharma, N K

With a view to obtaining limits on right-handed charged-current weak interactions produced by mixing between the usual leptons and the extra leptons that occur in the 27 representation of E/sub 6/, we reexamine various parameters which are sensitive to the admixture of right-handed currents (RHC's) in (a) muon decay, (b) nuclear ..beta.. decay, (c) inverse muon decay, and (d) leptonic decays of tau. The limits on the RHC's admixture parameter chemically bondsintheta/sub R//sup l/sinphi/sub R//sup l/chemically bond, where theta/sub R//sup l/ (phi/sub R//sup l/) are the mixing angles for right-handed charged (neutral) leptons, are obtained by making use of the presently available experimental data on the processes (a)--(d). For the e and ..mu.. families, the best limits (90% C.L.) are found to be chemically bondsintheta/sub R//sup e/sinphi/sub R//sup e/chemically bondless than or equal to0.047 and chemically bondsintheta/sub R//sup ..mu../sinphi/sub R//sup ..mu../chemically bondless than or equal to0.035, respectively. For the tau family, we obtain the limit (90% C.L.) chemically bondsintheta/sub R//sup tau/sinphi/sub R//sup tau/chemically bondless than or equal to0.38. AE

• Research Organization: Department of Physics, University of Rajasthan, Jaipur 302 004, India
• OSTI ID: 5510865
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 36:11; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645203* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BASIC INTERACTIONS
BETA DECAY
CHARGED-CURRENT INTERACTIONS
DECAY
EIGENSTATES
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
FUNCTIONS
INTERACTIONS
LAGRANGIAN FUNCTION
LEPTON-LEPTON INTERACTIONS
LEPTONIC DECAY
LEPTONS
LIE GROUPS
MASS
MUONS
PARTICLE DECAY
PARTICLE INTERACTIONS
QUANTUM NUMBERS
SU GROUPS
SU-2 GROUPS
SYMMETRY GROUPS
U GROUPS
U-1 GROUPS
WEAK INTERACTIONS
WEAK PARTICLE DECAY