scholarly journals STRANGENESS AND CHIRAL SYMMETRY BREAKING

2011 ◽  
Vol 26 (04) ◽  
pp. 279-288 ◽  
Author(s):  
HARLEEN DAHIYA ◽  
NEETIKA SHARMA
Keyword(s):  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Significant Contribution ◽  
Constituent Quark ◽  
Chiral Symmetry Breaking ◽  
Quantitative Description ◽  
Constituent Quark Model ◽  
Matrix Elements ◽  
Qualitative And Quantitative

The implications of chiral symmetry breaking and SU(3) symmetry breaking have been studied in the chiral constituent quark model (χCQM). The role of hidden strangeness component has been investigated for the scalar matrix elements of the nucleon with an emphasis on the meson–nucleon sigma terms. The χCQM is able to give a qualitative and quantitative description of the "quark sea" generation through chiral symmetry breaking. The significant contribution of the strangeness is consistent with the recent available experimental observations.

NONPERTURBATIVE QCD, THE CONSTITUENT QUARK MODEL AND CONFINEMENT

1988 ◽  
Vol 03 (01) ◽  
pp. 203-223 ◽  
Author(s):  
B.H.J. MCKELLAR ◽  
M.D. SCADRON ◽  
R.C. WARNER
Keyword(s):  
Quark Model ◽  
Chiral Symmetry ◽  
Constituent Quark ◽  
Chiral Symmetry Breaking ◽  
Constituent Quark Model ◽  
The Other ◽  
Hadron Structure ◽  
Potential Models ◽  
Dynamical Breaking ◽  
Quark Models

There are currently two major QCD-inspired quark models for hadrons. Nonrelativistic potential models and ultrarelativistic bag models have both had their successes. In this paper we present the case for an alternative quark picture, emphasizing the nonperturbative dynamical breaking of chiral symmetry in QCD. The relativistic constituent quark model which emerges recovers the main results of the other approaches, and also holds better prospects for the calculation of relativistic phenomena, and for the eventual understanding of the interrelations between chiral-symmetry breaking, hadron structure and confinement.

Vacuum Structure, Chiral Symmetry Breaking and Radiative Decays of Vector Mesons

1997 ◽  
Vol 06 (01) ◽  
pp. 121-134
Author(s):  
A. R. Panda ◽  
K. C. Roy
Keyword(s):  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Radiative Decay ◽  
Constituent Quark ◽  
Chiral Symmetry Breaking ◽  
Vector Mesons ◽  
Model Calculations ◽  
Vacuum Structure ◽  
Quark Field ◽  
Decay Widths

The radiative decay widths of vector mesons were considered in a model involving chiral symmetry breaking through a nontrivial vacuum structure where the pion and kaon being treating consistently yield the constituent quark wave functions, approximately the same as that obtained from the gap equations and thus in a way determine the constituent quark field operators. Like its earlier success to some low energy hadronic phenomena, here also the model calculations of radiative decay widths of mesons are in reasonable agreements with other theoretical estimations as well as experimental measurements.

Role of latent heat in chiral symmetry breaking transition in the crystallization of 1,1?-binaphthyl

Chirality ◽  
2003 ◽  
Vol 15 (3) ◽  
pp. 238-241 ◽  
Author(s):  
Kouichi Asakura ◽  
Masato Hayashi ◽  
Shuichi Osanai
Keyword(s):  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Latent Heat ◽  
Chiral Symmetry Breaking

Chiral Symmetry Breaking in Crystallization: The Role of Convection

2000 ◽  
Vol 84 (19) ◽  
pp. 4405-4408 ◽  
Author(s):  
T. Buhse ◽  
D. Durand ◽  
D. Kondepudi ◽  
J. Laudadio ◽  
S. Spilker
Keyword(s):  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Chiral Symmetry Breaking

scholarly journals Inflation and dark matter after spontaneous Planck scale generation by hidden chiral symmetry breaking

2022 ◽  
Vol 2022 (01) ◽  
pp. 005
Author(s):  
Mayumi Aoki ◽  
Jisuke Kubo ◽  
Jinbo Yang
Keyword(s):  
Dark Matter ◽  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Chiral Symmetry Breaking ◽  
Planck Scale ◽  
Energy Scale ◽  
Dynamical Chiral Symmetry Breaking ◽  
Hidden Sector ◽  
Visible Sector

Abstract Dynamical chiral symmetry breaking in a QCD-like hidden sector is used to generate the Planck mass and the electroweak scale including the heavy right-handed neutrino mass. A real scalar field transmits the energy scale of the hidden sector to the visible sectors, playing besides a role of inflaton in the early Universe while realizing a Higgs-inflation-like model. Our dark matter candidates are hidden pions that raise due to dynamical chiral symmetry breaking. They are produced from the decay of inflaton. Unfortunately, it will be impossible to directly detect them, because they are super heavy (109 ∼ 12 GeV), and moreover the interaction with the visible sector is extremely suppressed.

CHIRAL SYMMETRY BREAKING AND FORMULAS OF QUARK CONVERSION FOR LOW-ENERGY HADRONIC MATRIX ELEMENTS

1993 ◽  
Vol 08 (05) ◽  
pp. 853-872 ◽  
Author(s):  
ANDREI N. IVANOV
Keyword(s):  
Chiral Symmetry ◽  
Constituent Quark ◽  
Chiral Symmetry Breaking ◽  
Low Energy ◽  
Collective Excitations ◽  
Spontaneous Breaking ◽  
Matrix Elements ◽  
Energy Approximation ◽  
Meson States ◽  
Current Quark

By using the extended Nambu-Jona-Lasinio model for the low-energy approximation of QCD we derive the formulas, being due to spontaneous breaking of chiral symmetry and bosonization, and allowing to express matrix elements of any operator with current-quark fields in the definition in terms of matrix elements of this operator determined via constituent-quark fields interacting with low-lying meson states appearing as [Formula: see text]-collective excitations, which have the self-interactions too.

Sign in / Sign up

Export Citation Format

Share Document