Three-particle semileptonic decays of the tau lepton and locality of the leptonic weak current

Journal Article · Sat Sep 01 00:00:00 EDT 1979 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:5207896

Rekalo, M P

The tau-lepton decays with the detection of one of the produced hadrons (together with the neutrino ..nu../sub tau/) are studied in a general form. The locality of the interaction of the lepton pair makes it possible to predict the dependence of the decay probability of polarized and unpolarized tau leptons on the energy of the detected pion. The conservation of the hadronic vector weak current, which determines the decays tau/sup -/..--> nu../sub tau/+..pi../sup -/+..pi../sup 0/ and tau/sup -/..--> nu../sub tau/+..pi../sup -/+..omega.., leads to additional predictions about the energy dependence of the decay probability. In the case of the decay tau/sup -/..--> nu../sub tau/+..pi../sup -/+rho/sup 0/ the locality makes it possible to predict the values of three (of the seven) coefficients determining the energy dependences of the unpolarized tau-lepton decay probability and the angular-distribution asymmetries resulting from the longitudinal components of the tau-lepton polarization vector.

• Research Organization: Khar'khov Physico-Technical Institute, Academy of Sciences of the Ukrainian SSR
• OSTI ID: 5207896
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Vol. 30:3
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
TAU PARTICLES
SEMILEPTONIC DECAY
POLARIZATION
WEAK CHARGED CURRENTS
WEAK NEUTRAL CURRENTS
ALGEBRAIC CURRENTS
CHARGED CURRENTS
CURRENTS
DECAY
ELEMENTARY PARTICLES
FERMIONS
HEAVY LEPTONS
LEPTONS
NEUTRAL CURRENTS
PARTICLE DECAY
POSTULATED PARTICLES
WEAK PARTICLE DECAY
645203* - High Energy Physics- Particle Interactions & Properties-Theoretical- Weak Interactions & Properties