Published July 12, 2006 | Version v1
Report Metadata-only

Two Photon Decays of Charmonia from Lattice QCD

Creators

Description

We make the first calculation in lattice QCD of two-photon decays of mesons. Working in the charmonium sector, using the LSZ reduction to relate a photon to a sum of hadronic vector eigenstates, we compute form-factors in both the space-like and time-like domains for the transitions ηc → γ*γ* and χc0 → γ*γ*. At the on-shell point we find approximate agreement with experimental world-average values

Availability note (English)

Available from http://www1.jlab.org/Ul/Publications/documents/2photon_onecol.pdf; PURL: https://www.osti.gov/servlets/purl/886124-uXSnWx/

Additional details

Identifiers

URL
https://www.osti.gov/servlets/purl/886124-uXSnWx/;

Publishing Information

Imprint Pagination
[vp.]
Report number
JLAB-THY--06-512

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
37095548
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
CHARMONIUM; EIGENSTATES; FORM FACTORS; MESONS; PHOTONS; QUANTUM CHROMODYNAMICS; VECTORS
Descriptors DEC
BOSONS; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; FIELD THEORIES; HADRONS; MASSLESS PARTICLES; MESONS; PARTICLE PROPERTIES; QUANTUM FIELD THEORY; QUARKONIUM; TENSORS

Optional Information

Contract/Grant/Project number
AC05-84ER40150
Funding organization
USDOE - Office of Energy Research ER (United States)
Secondary number(s)
DOE/ER--40150-3967