Published 1988 | Version v1
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π0→2γ decay width and chiral symmetry dynamical breaking in QCD

Creators

Description

It is shown that in frames of chiral symmetry breaking in QCD the π0→2γ decay width much depends on quark propagator form in nonasymptotic region of Euclidean four-momenta. π0-meson decay width is calculated on the basis of triangular quark diagram taking into account nonlocal character of π0-meson field Yukawa vertex

Additional details

Additional titles

Original title (Russian)
Ширина распада Ï€

Publishing Information

Imprint Title
Quantum radiophysics
Journal Issue
no. 12
Series
Kratkie soobshcheniya po fizike.
Journal Page Range
p. 40-42.
Report number
INIS-SU--103/A

INIS

Country of Publication
USSR
Country of Input or Organization
USSR
INIS RN
20058712
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
CHIRAL SYMMETRY; DECAY AMPLITUDES; PARTICLE WIDTHS; PHOTONS; PIONS NEUTRAL; PROPAGATOR; QUARKS; RADIATIVE DECAY; SU-2 GROUPS; SYMMETRY BREAKING; WARD IDENTITY
Descriptors DEC
AMPLITUDES; BOSONS; DECAY; ELEMENTARY PARTICLES; FERMIONS; HADRONS; LIE GROUPS; MASSLESS PARTICLES; MESONS; PARTICLE DECAY; PARTICLE PROPERTIES; PIONS; POSTULATED PARTICLES; PSEUDOSCALAR MESONS; SU GROUPS; SYMMETRY; SYMMETRY GROUPS; TRANSITION AMPLITUDES

Optional Information

Notes
7 refs.; 1 fig. Imprint:Kvantovaya radiofizika.;Sbornik.