Published December 1, 2008 | Version v1
Report Metadata-only

Light-Meson Two-Photon Decays in Full QCD

Creators

Description

We present a study of two-photon decays of light mesons, focusing on the neutral pion decay. This important process highlights the effects of the axial anomaly in QCD but has been little studied on the lattice. By applying the Lehmann-Symanzik-Zimmermann (LSZ) reduction formula, we reconstruct the electromagnetic matrix elements from three-point vector-vector Green functions calculated on 2+1-flavor isotropic clover lattices.

Additional details

Identifiers

arXiv
arXiv:0810.5550;

Publishing Information

Imprint Pagination
vp.
Report number
JLAB-THY--08-906

Conference

Title
26. International Symposium on Lattice Field Theory
Acronym
Lattice 2008
Dates
14-18 Jul 2008
Place
Williamsburg VA (United States)

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
41097468
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
DECAY; FOCUSING; GREEN FUNCTION; LATTICE FIELD THEORY; MATRIX ELEMENTS; MESONS; PIONS; QUANTUM CHROMODYNAMICS
Descriptors DEC
BOSONS; CONSTRUCTIVE FIELD THEORY; ELEMENTARY PARTICLES; FIELD THEORIES; FUNCTIONS; HADRONS; MESONS; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY

Optional Information

Contract/Grant/Project number
AC05-060R23177
Funding organization
US Department of Energy (United States)
Secondary number(s)
ARXiv:--0810.5550; DOE/OR--23177-0528