Results 21 to 30 of about 15,677 (253)
Naturalness, Chiral Symmetry, and Spontaneous Chiral Symmetry Breaking [PDF]
A properly called “naturalness” is imposed on gauge theories. It is an order-of-magnitude restriction that must hold at all energy scales μ. To construct models with complete naturalness for elementary particles one needs more types of confining gauge theories besides quantum chromodynamics.
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Chiral Structure of Baryon and Scalar Tetraquark Currents
We investigate chiral properties of local fields of baryons consisting of three quarks with flavor SU(3) symmetry. We construct explicitly independent local threequark fields belonging to definite Lorentz and flavor representations.
Chen Hua-Xing +2 more
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CHIRAL SYMMETRY ON THE LATTICE [PDF]
As a non-perturbative and gauge invariant regularization the lattice provides a tool for deeper understanding of the celebrated Yang-Mills theory, QCD and chiral gauge theories. For illustration, I discuss some analytic developments on the lattice related to chiral symmetry, chiral fermions and improvement programs.
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Chiral symmetry is a fundamental symmetry of Quantum Chromodynamics (QCD) in the limit of vanishing quark masses. In the hadronic sector chiral symmetry is broken; otherwise chiral partners - hadronic states with the same spin but opposite parity ...
Metag Volker
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Quark masses and chiral symmetry [PDF]
compressed postscript file, 20 pages with 10 figures.
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Considering a QCD chiral symmetry breaking model where the gap equation contains an effective confining propagator and a dressed gluon propagator with a dynamically generated mass, we verify that the chiral symmetry is restored for a large number of ...
R.M. Capdevilla, A. Doff, A.A. Natale
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ASPECTS OF CHIRAL SYMMETRY [PDF]
We give a pedagogical review of implications of chiral symmetry in QCD. First, we briefly discuss classical textbook subjects such as the axial anomaly, spontaneous breaking of the flavor-nonsinglet chiral symmetry, formation of light pseudo-Goldstone particles, and their effective interactions. Then we proceed to other issues.
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Chiral Thermodynamics in Tailored Chiral Optical Environments
The stochastic motion of Brownian particles out of equilibrium yields rich thermodynamic landscapes studied on a great variety of systems through many different research fields.
Gabriel Schnoering +3 more
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Chiral symmetry breaking in QCD [PDF]
By applying bifurcation theory to a truncated Dyson-Schwinger equation for the quark propagator in massless QCD, we show that dynamical symmetry breaking occurs at a certain critical value of the coupling constant. Essential ingredients are (a) an effective dynamical mass for the gluon, and (b) a running coupling constant.
ATKINSON, D, JOHNSON, PW, KOOPMANS, M
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η' meson under partial restoration of chiral symmetry in nuclear medium*
We shed light upon the η' mass in nuclear matter in the context of partial restoration of chiral symmetry, pointing out that the UA(1) anomaly effects causes the η'-η mass difference necessarily through the chiral symmetry breaking.
Sakai Shuntaro +3 more
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