Results 31 to 40 of about 1,258 (165)

The mass-gap in Quantum Chromodynamics

EPJ 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

Clothed Particles in Quantum Electrodynamics and Quantum Chromodynamics

EPJ 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

A Possible Resolution to Troubles of SU(2) Center Vortex Detection in Smooth Lattice Configurations

Universe, 2021
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

Quantum Chromodynamics and the Hyperbolic Unitary Group SUh(3)

Axioms, 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

Hadron spectroscopy from lattice quantum chromodynamics

EPJ Web of Conferences, 2016
Lattice calculations of hadron spectroscopy are discussed. A brief introduction to numerical simulations of QCD, with a focus on spectroscopy is given.
Ryan Sinéad M.
doaj   +1 more source

New Approach to Investigation of Nuclei

EPJ Web of Conferences, 2014
We demonstrate that the sum rules of quantum chromodynamics provide a consistent formalism for solving various problems of nuclear physics.
Drukarev E. G., Ryskin M. G., Sadovnikova V. A.   +2 more
doaj   +1 more source

Stefano and Marcello @ Work [PDF]

EPJ Web of Conferences
To honor the memory of Stefano Catani and Marcello Ciafaloni, I describe part of their scientific results in the field of Quantum ChromoDynamics during their long and fruitful careers.
Ridolfi Giovanni
doaj   +1 more source

Impact of Quantum Gravity on the UV Sensitivity of Extremal Black Holes

Fortschritte der Physik, Volume 74, Issue 4, April 2026.
ABSTRACT Recent work has revealed that extremal Kerr black holes may exhibit a sensitivity to higher‐derivative corrections to Einstein's equations, displaying singularities in the tidal forces at the horizon. However, in a purely gravitational context, this “ultraviolet sensitivity” translates into a strong dependence on the Wilson coefficients in the
Francesco Del Porro, Francesco Ferrarin, Alessia Platania   +2 more
wiley   +1 more source

The Block Preconditioned SOR Method for Solving Indefinite Complex Linear Systems

Numerical Linear Algebra with Applications, Volume 33, Issue 1, February 2026.
ABSTRACT In this paper we extend the theory of a block preconditioned SOR method studied by Hezari, Edalaptour, and Salkuyeh (2015) for the solution of indefinite complex linear systems. In particular, we consider the case where the key matrix S$$ S $$ has real eigenvalues which lie in (−∞,+∞)$$ \left(-\infty, +\infty \right) $$ and not only in [0,+∞)$$
M. A. Louka, N. M. Missirlis
wiley   +1 more source

Spin Phenomena in Quantum Chromodynamics

Natural Science Review
The theory of spin effects (with the particular emphasis on T-odd ones) in QCD and its development in JINR is reviewed, including some personal recollections on the joint work with A.V. Efremov.
O. V. Teryaev
doaj   +1 more source