Constraining Quark-Hadron Duality at Large-Nc

Preprint

2 June 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/0106022

Abstract

Quark-meson duality for two-point functions of vector and axial-vector QCD currents is investigated in the large-Nc approximation. We find that the joint constraints of duality and chiral symmetry imply degeneracy of excited vector and axial-vector mesons in the large-Nc limit. We compare model-independent constraints with expectations based on the Veneziano-Lovelace-Shapiro string model. Several models of duality are constructed, and phenomenological implications are discussed.

Keywords

CONSTRAINING QUARK
HADRON DUALITY
AXIAL VECTOR
QUARK HADRON
STRING MODEL
LARGE NC
MESON
QCD

All Related Versions

Version 1, 2001-06-02, ArXiv
Published version: Physical Review D, 64 (11), 116010.

This publication has 0 references indexed in Scilit: