Quark mass ratios from chiral symmetry at infinite momentum

1979 ◽  
Vol 52 (1) ◽  
pp. 132-140
Author(s):  
S. K. Bose
Keyword(s):  
Chiral Symmetry ◽  
Quark Mass ◽  
Mass Ratios

scholarly journals Alternative Scheme of Spontaneous Chiral Symmetry Breaking

1986 ◽  
Vol 39 (3) ◽  
pp. 347 ◽  
Author(s):  
GA Christos
Keyword(s):  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Quark Mass ◽  
Chiral Symmetry Breaking ◽  
Alternative Scheme ◽  
Goldstone Bosons ◽  
Spontaneous Chiral Symmetry Breaking ◽  
Mass Ratios ◽  
Usual Scheme

We develop an alternative scheme of spontaneous chiral symmetry breaking which is characterized by four-quark condensates instead of (7jq),*O. In this scheme the Nambu-Goldstone bosons acquire a mass squared - m~uark' in comparison with mquark in the usual scheme. The quark mass ratios and the parameters of the scheme are determined by an application to the pseudoscalar nonet spectrum (including 'lT0_'Yj_'Yj' mixing). The decays Iji -+('lT0 , 'Yj, 'Yj}y and Iji' -+ 1ji('lT0 , 'Yj) are also considered. The results do not promote the alternative scheme.

scholarly journals QUARK MASS RATIOS AND MASS SPLIT OF π0-π±INChPTWITH THE DIFFERENCE OF QUARK CONDENSATES CONSIDERED

2008 ◽  
Vol 23 (22) ◽  
pp. 3493-3507
Author(s):  
XIAOYA LI ◽  
BIN WANG ◽  
XIAOZHAO CHEN ◽  
XIAOFU LÜ
Keyword(s):  
Chiral Symmetry ◽  
Pseudoscalar Meson ◽  
Quark Mass ◽  
Quark Condensate ◽  
Breaking Effect ◽  
Goldstone Bosons ◽  
Effective Lagrangian ◽  
Pseudoscalar Mesons ◽  
Mass Ratios ◽  
The Difference

The chiral effective Lagrangian for pseudoscalar meson nonet including eight Goldstone bosons and a SU (3) singlet η0is constructed with the breaking effect of chiral symmetry in both quark condensate and quark mass differences taken into account. The [Formula: see text] mixing is discussed. By solving the mass equations of pseudoscalar mesons, the quark mass ratios are obtained and the quark condensate ratios are constrained in ranges. The mass split of π0-π±is discussed.

LIGHT QUARK MASS RATIOS (mu:md:ms) FROM MESON AND BARYON MASS SPLITTINGS

2013 ◽  
Vol 28 (25) ◽  
pp. 1360015 ◽  
Author(s):  
PETER MINKOWSKI
Keyword(s):  
Quark Mass ◽  
Sum Rules ◽  
Light Quark ◽  
Nucl Phys ◽  
Qcd Sum Rules ◽  
Baryon Mass ◽  
Mass Ratios ◽  
Light Quark Mass

The basis of the material discussed is our work in collaboration with Arnulfo Zepeda from 1979 [Nucl. Phys. B164, 25 (1980)]. The ingredients and consequences of this work will be presented, and compared with results obtained from QCD sum rules and lattice simulations of QCD in accordance with chiral expansions. An up-to-date conclusion will not be possible in this paper, but some comments towards such goal will be given in a concluding section.

scholarly journals Finite temperature Landau gauge lattice quark propagator

2019 ◽  
Vol 79 (9) ◽  
Author(s):  
Orlando Oliveira ◽  
Paulo J. Silva
Keyword(s):  
Wave Function ◽  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Finite Temperature ◽  
Quark Mass ◽  
Chiral Symmetry Breaking ◽  
Form Factors ◽  
Landau Gauge ◽  
Quark Propagator ◽  
Quark Wave Function

Abstract The quark propagator at finite temperature is investigated using quenched gauge configurations. The propagator form factors are investigated for temperatures above and below the gluon deconfinement temperature $$T_c$$Tc and for the various Matsubara frequencies. Significant differences between the functional behaviour below and above $$T_c$$Tc are observed both for the quark wave function and the running quark mass. The results for the running quark mass indicate a link between gluon dynamics, the mechanism for chiral symmetry breaking and the deconfinement mechanism. For temperatures above $$T_c$$Tc and for low momenta, our results support also a description of quarks as free quasiparticles.

Determination of quark mass ratios from Kl3 decay

1979 ◽  
Vol 86 (2) ◽  
pp. 171-174 ◽  
Author(s):  
C.A. Dominguez
Keyword(s):  
Quark Mass ◽  
Mass Ratios

scholarly journals QCD isospin breaking in meson masses, decay constants and quark mass ratios

2001 ◽  
Vol 602 (1-2) ◽  
pp. 87-108 ◽  
Author(s):  
G. Amoros ◽  
J. Bijnens ◽  
P. Talavera
Keyword(s):  
Quark Mass ◽  
Isospin Breaking ◽  
Decay Constants ◽  
Mass Ratios

Current-quark mass ratios fromη→3π

1984 ◽  
Vol 30 (3) ◽  
pp. 674-676 ◽  
Author(s):  
Ll. Ametller ◽  
C. Ayala ◽  
A. Bramon
Keyword(s):  
Quark Mass ◽  
Current Quark Mass ◽  
Mass Ratios ◽  
Current Quark

scholarly journals HEAVISIDE TRANSFORM WITH RESPECT TO THE MASS IN QCD

1996 ◽  
Vol 11 (12) ◽  
pp. 1001-1009 ◽  
Author(s):  
HIROFUMI YAMADA
Keyword(s):  
Symmetry Breaking ◽  
Momentum Transfer ◽  
Chiral Symmetry ◽  
Quark Mass ◽  
Chiral Symmetry Breaking ◽  
Quark Condensate ◽  
Large Momentum Transfer ◽  
Large Momentum ◽  
Dominant Effect

We propose the use of Heaviside transform with respect to the quark mass to investigate dynamical aspects of QCD. We show that at large momentum transfer the transformed propagator of massive quarks behaves softly and thus the dominant effect of explicit chiral symmetry breaking disappears through Heaviside transform. This suggests that it is more convenient to do massless approximation in the transformed quantity than in the original one. As an example of explicit approximation, we estimate the massless value of the quark condensate.

scholarly journals Quark Mass Ratios and Kl3 Decay Parameters

1980 ◽  
Vol 63 (6) ◽  
pp. 2152-2154
Author(s):  
T. Kaneko
Keyword(s):  
Quark Mass ◽  
Mass Ratios ◽  
Decay Parameters
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