Published October 1, 2004 | Version v1
Report

Lattice studies of baryons

Description

This talk describes progress at understanding the properties of the nucleon and its excitations from lattice QCD. I begin with a review of recent lattice results for the lowest-lying states of the excited baryon spectrum. The need to approach physical values of the light quark masses is emphasized, enabling the effects of the pion cloud to be revealed. I then outline the development of techniques that will enable the extraction of the masses of the higher resonances, and describe how such calculations provide insight into the structure of the hadrons. Finally, I discuss direct probes of the quark and gluon structure of baryons through the lattice measurement of the moments of quark distributions and of Generalized Parton Distributions

Availability note (English)

Available from PURL: https://www.osti.gov/servlets/purl/836067-qvrr0g/native/

Additional details

Publishing Information

Imprint Pagination
216.4 Kilobytes
Report number
JLAB-THY--05-289

Conference

Title
APS Topical Group on Hadron Physics
Dates
24 Oct 2004
Place
Batavia, IL (United States)

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
36026619
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
BARYON SPECTROSCOPY; GLUONS; LATTICE FIELD THEORY; NUCLEONS; PARTICLE STRUCTURE; PARTONS; PIONS; QUANTUM CHROMODYNAMICS; QUARKS; RESONANCE PARTICLES
Descriptors DEC
BARYONS; BOSONS; CONSTRUCTIVE FIELD THEORY; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; HADRONS; MESONS; POSTULATED PARTICLES; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; SPECTROSCOPY

Optional Information

Contract/Grant/Project number
AC05-84ER40150
Funding organization
USDOE Office of Energy Research (ER) (United States)
Secondary number(s)
DOE/ER--40150-3049