Published November 29, 1993 | Version v1
Journal article Metadata-only

Radiative corrections to πl2 decays

Creators

  • 1. Department of Physics, Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)
  • 2. Department of Physics, New York University, New York, New York 10003 (United States)

Description

Radiative corrections to πl2 (l=e or μ) decays are examined. Higher order electroweak leading logarithms short-distance QCD corrections, and structure dependent effects are incorporated. The results are employed to (1) test e-μ universality in Γ(π→e bar νe(γ))/Γ(π→μ bar νμ(γ)), (2) extract an fπ which is used to check the Goldberger-Treiman relation and PCAC-anomaly prediction for Γ(π0→γγ), and (3) determine the tau partial decay rate Γ(τ→πντ(γ))

Additional details

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
71
Journal Issue
22
Journal Page Range
p. 3629-3632.
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
25041640
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ELECTRON-MUON UNIVERSALITY; GOLDBERGER-TREIMAN RELATION; LEPTONIC DECAY; PCAC THEORY; PIONS; QUANTUM CHROMODYNAMICS; RADIATIVE CORRECTIONS
Descriptors DEC
BASIC INTERACTIONS; BOSONS; CORRECTIONS; DECAY; ELECTRON-MUON-TAU UNIVERSALITY; ELEMENTARY PARTICLES; FIELD THEORIES; HADRONS; INTERACTIONS; MESONS; PARTICLE DECAY; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; WEAK INTERACTIONS; WEAK PARTICLE DECAY