Published June 6, 2005 | Version v1
Report

The strong coupling constant at low Q2

Description

We extract an effective strong coupling constant using low-Q2 data and sum rules. Its behavior is established over the full Q2-range and is compared to calculations based on lattice QCD, Schwinger-Dyson equations and a quark model. Although the connection between all these quantities is not known yet, the results are surprisingly alike. Such a similitude may be related to quark-hadron duality

Availability note (English)

Available from OSTI as DE00850197; PURL: https://www.osti.gov/servlets/purl/850197-spXE7f/

Additional details

Publishing Information

Imprint Pagination
[vp.]
Report number
JLAB-PHY--05-412

Conference

Title
1. Workshop on Quark-Hadron Duality and the Transition to pQCD
Dates
6 Jun 2005
Place
Frascati (Italy)

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
37002641
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
COUPLING CONSTANTS; DUALITY; QUANTUM CHROMODYNAMICS; QUARK MODEL; SUM RULES
Descriptors DEC
COMPOSITE MODELS; EQUATIONS; FIELD THEORIES; MATHEMATICAL MODELS; PARTICLE MODELS; QUANTUM FIELD THEORY

Optional Information

Contract/Grant/Project number
AC--05-84ER40150
Funding organization
US Department of Energy (United States)
Secondary number(s)
DOE/ER--40150-3584