Results 31 to 40 of about 52,246 (248)

Upper Limits on a Possible Gluon Mass [PDF]

open access: yes, 2010
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
core   +3 more sources

Poincaré invariance in low-energy EFTs for QCD

open access: yesEPJ Web of Conferences, 2017
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
doaj   +1 more source

The mass-gap in Quantum Chromodynamics

open access: yesEPJ Web of Conferences, 2016
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.
doaj   +1 more source

Quarkonia and quantum chromodynamics [PDF]

open access: yesPhysical Review D, 1981
The $\ensuremath{\psi}$ and $\ensuremath{\Upsilon}$ spectroscopies are analyzed in the framework of a recently proposed potential model which incorporates linear confinement and asymptotic freedom. Given the Regge slope ${\ensuremath{\alpha}}^{\ensuremath{'}}$ (${\ensuremath{\alpha}}^{\ensuremath{'}}$ taken to be 1 ${\mathrm{GeV}}^{\ensuremath{-}2 ...
Buchmüller, Wilfried, Tye, Henry
openaire   +3 more sources

Clothed Particles in Quantum Electrodynamics and Quantum Chromodynamics

open access: yesEPJ Web of Conferences, 2016
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 and the Hyperbolic Unitary Group SUh(3)

open access: yesAxioms, 2023
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

Quantum chromodynamics with advanced computing [PDF]

open access: yes, 2008
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

QCD: quantum chromodynamic diffraction [PDF]

open access: yesJournal of Physics G: Nuclear and Particle Physics, 1996
8 Latex pages, 4 figures, from talks given by the authors at the Workshop on Proton, Photon and Pomeron Structure, Durham, September ...
Krzysztof Golec-Biernat, J.P. Phillips
openaire   +4 more sources

Quantum Chromodynamics with Many Flavors [PDF]

open access: yes, 1998
We investigate the phase structure of lattice QCD for general number of flavors $N_F$. Based on numerical data combined with the results of the perturbation theory we propose the following picture: When $N_F \ge 17$, there is only one IR fixed point at ...
Iwasaki, Y.   +4 more
core   +3 more sources

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