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Chiral limit of QCD

Abstract

This talk contains an analysis of quenched chiral perturbation theory and its consequences. The chiral behavior of a number of quantities such as the pion mass m{sub {pi}}{sup 2}, the Bernard-Golterman ratios R and {chi}, the masses of nucleons, and the kaon B-parameter are examined to see if the singular terms induced by the additional Goldstone boson, {eta}`, are visible in present data. The overall conclusion of this analysis is that even though there are some caveats attached to the indications of the extra terms induced by {eta}` loops, the standard expressions break down when extrapolating the quenched data with m{sub q}
Authors:
Gupta, R [1] 
  1. Los Alamos Nat. Lab., NM (United States). T-8 Group
Publication Date:
Apr 01, 1995
Product Type:
Journal Article
Report Number:
CONF-9409269-
Reference Number:
SCA: 662230; PA: AIX-26:064579; EDB-95:132611; SN: 95001458567
Resource Relation:
Journal Name: Nuclear Physics B, Proceedings Supplements; Journal Volume: 42; Conference: Lattice `94, Bielefeld (Germany), 25 Sep - 1 Oct 1994; Other Information: PBD: Apr 1995
Subject:
66 PHYSICS; QUANTUM CHROMODYNAMICS; CHIRALITY; ANTIKAONS NEUTRAL; ASYMPTOTIC SOLUTIONS; AXIAL-VECTOR CURRENTS; CHIRAL SYMMETRY; CONFIGURATION MIXING; COUPLING CONSTANTS; CURRENT DIVERGENCES; ETA PRIME-958 MESONS; EXTRAPOLATION; FLAVOR MODEL; GOLDSTONE BOSONS; LAGRANGIAN FIELD THEORY; LATTICE FIELD THEORY; LEPTONIC DECAY; MATRIX ELEMENTS; MIXING RATIO; PERTURBATION THEORY; PIONS; PROTONS; QUARKS; REST MASS; SINGULARITY
OSTI ID:
101299
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: NPBSE7; ISSN 0920-5632; TRN: NL95FF590064579
Submitting Site:
NLN
Size:
pp. 85-95
Announcement Date:
Oct 05, 1995

Citation Formats

Gupta, R. Chiral limit of QCD. Netherlands: N. p., 1995. Web. doi:10.1016/0920-5632(95)00190-K.
Gupta, R. Chiral limit of QCD. Netherlands. https://doi.org/10.1016/0920-5632(95)00190-K
Gupta, R. 1995. "Chiral limit of QCD." Netherlands. https://doi.org/10.1016/0920-5632(95)00190-K.
@misc{etde_101299,
title = {Chiral limit of QCD}
author = {Gupta, R}
abstractNote = {This talk contains an analysis of quenched chiral perturbation theory and its consequences. The chiral behavior of a number of quantities such as the pion mass m{sub {pi}}{sup 2}, the Bernard-Golterman ratios R and {chi}, the masses of nucleons, and the kaon B-parameter are examined to see if the singular terms induced by the additional Goldstone boson, {eta}`, are visible in present data. The overall conclusion of this analysis is that even though there are some caveats attached to the indications of the extra terms induced by {eta}` loops, the standard expressions break down when extrapolating the quenched data with m{sub q}
doi = {10.1016/0920-5632(95)00190-K}
journal = []
volume = {42}
journal type = {AC}
place = {Netherlands}
year = {1995}
month = {Apr}
}