tau radiative decay and pion structure form factors

Journal Article · Sat Mar 01 04:00:00 EST 1980 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.21.1330· OSTI ID:5660680

Kim, J H; Resnick, L

The decay mode of the tau lepton tau/sup -/ ..-->.. ..nu../sub tau/..pi../sup -/..gamma.. is calculated in terms of the axial-vector and vector structure-dependent form factors of the pion, which also describe the radiative ..pi.. decay ..pi../sup -/ ..-->.. l/sup -/nu-bar/sub l/..gamma... The isospin-rotated vector form factor is related (as usual) to the decay ..pi../sup 0/ ..-->.. 2..gamma.., as well as to e/sup +/e/sup -/ ..-->.. ..pi../sup 0/..gamma... These reactions thus serve to probe the isospin structure of the vector form factor, as well as the momentum-transfer dependence of both form factors. The numbers expected in the tau radiative decay are calculated using vector-meson-dominance estimates for the form factors.

• Research Organization: Carleton University, Ottawa, Canada
• OSTI ID: 5660680
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 21:5; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALGEBRAIC CURRENTS
ANNIHILATION
AXIAL-VECTOR CURRENTS
BASIC INTERACTIONS
BOSONS
BOUND STATE
BRANCHING RATIO
BREMSSTRAHLUNG
CABIBBO ANGLE
COMPOSITE MODELS
CURRENTS
DECAY
ELECTROMAGNETIC INTERACTIONS
ELECTROMAGNETIC RADIATION
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
FORM FACTORS
FUNCTIONS
HADRONS
HEAVY LEPTONS
INTERACTIONS
ISOSPIN
LEPTON-LEPTON INTERACTIONS
LEPTONS
MATHEMATICAL MODELS
MESONS
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUARK MODEL
RADIATIONS
SEMILEPTONIC DECAY
TAU PARTICLES
VECTOR CURRENTS
WAVE FUNCTIONS
WEAK PARTICLE DECAY