Results 21 to 30 of about 53,681 (243)
Chirally extended quantum chromodynamics
We propose an extended Quantum Chromodynamics (XQCD) Lagrangian in which the fermions are coupled to elementary scalar fields through a Yukawa coupling which preserves chiral invariance. Our principle motivation is to find a new lattice formulation for QCD which avoids the source of critical slowing down usually encountered as the bare quark mass is ...
Brower, Richard C. +2 more
openaire +2 more sources
This article is part of the "Review of Particle Physics" by the Particle Data Group and reviews the current status of quantum chromodynamics and the strong coupling constant $\alpha_s$. The latest updates as of August 2023 are included.
Huston, Joey +2 more
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Upper Limits on a Possible Gluon Mass [PDF]
We analyze upper limits on a possible gluon mass, $m_g$. We first discuss various ways to modify quantum chromodynamics to include $m_g \ne 0$, including a bare mass, a Higgs mechanism, and dynamical breaking of color SU(3)$_c$.
Nussinov, Shmuel, Shrock, Robert
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A Possible Resolution to Troubles of SU(2) Center Vortex Detection in Smooth Lattice Configurations
The center vortex model of quantum-chromodynamics can explain confinement and chiral symmetry breaking. We present a possible resolution for problems of the vortex detection in smooth configurations and discuss improvements for the detection of center ...
Rudolf Golubich, Manfried Faber
doaj +1 more source
Poincaré invariance in low-energy EFTs for QCD
We present the calculations on deriving constraints between the Wilson coefficients in non-relativistic quantum chromodynamics and potential non-relativistic quantum chromodynamics by exploiting the symmetry of its fundamental theory, Poincaré invariance
Hwang Sungmin
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The mass-gap in Quantum Chromodynamics
It is shown that the fundamental Lagrangian of Quantum Chromodynamis should be modified by the adding gluon masses to produce the mass-gap in accordance with the Källen-Lehmann spectral representation. On mass-shell renormalizability and unitarity of the
Larin S.A.
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Quantum Chromodynamics and the Hyperbolic Unitary Group SUh(3)
The paper shows that it is possible to construct quantum chromodynamics as a rigorous theory on the basis of employment of hyperbolic unitary group SUh(3), which is a symmetry group for the three-dimensional complex space of the hyperbolic type.
Nikolay Popov, Ivan Matveev
doaj +1 more source
Clothed Particles in Quantum Electrodynamics and Quantum Chromodynamics
The notion of clothing in quantum field theory (QFT), put forward by Greenberg and Schweber and developed by M. Shirokov, is applied in quantum electrodynamics (QED) and quantum chromodynamics (QCD).
Shebeko Alexander
doaj +1 more source
Quantum chromodynamics with advanced computing [PDF]
We survey results in lattice quantum chromodynamics from groups in the USQCD Collaboration. The main focus is on physics, but many aspects of the discussion are aimed at an audience of computational physicists.Comment: 17 pp.
+30 more
core +4 more sources
Multiparticle production and quantum chromodynamics [PDF]
The theory of strong interactions, quantum chromodynamics (QCD), is quite successful in the prediction and description of main features of multiparticle production processes at high energies.
Dremin, I. M.
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