Results 11 to 20 of about 15,573 (235)

DOMAIN-LIKE STRUCTURES IN THE QCD VACUUM, CONFINEMENT AND CHIRAL SYMMETRY BREAKING [PDF]

Lepton Scattering, Hadrons and QCD, 2001
8 pages, LaTeX.
Kalloniatis, A. C., Nedelko, S. N.
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Confinement and chiral symmetry breaking via domainlike structures in the QCD vacuum [PDF]

Physical Review D, 2001
RevTeX, 48 pages (32 pages + Appendices A-E), new references added [1,2,4,5] and minor formulae corrected for typographical ...
Kalloniatis, Alexander Constantine, Nedelko, Sergei N.   +1 more
openaire   +3 more sources

The large-N limit of the chiral condensate from twisted reduced models

Journal of High Energy Physics, 2023
We compute the large-N limit of the QCD chiral condensate on the lattice using twisted reduced models, and performing controlled continuum and chiral extrapolations.
Claudio Bonanno, Pietro Butti, Margarita García Peréz, Antonio González-Arroyo, Ken-Ichi Ishikawa, Masanori Okawa   +5 more
doaj   +1 more source

Topological susceptibility of N f = 2 + 1 QCD from staggered fermions spectral projectors at high temperatures

Journal of High Energy Physics, 2022
We compute the topological susceptibility of N f = 2 + 1 QCD with physical quark masses in the high-temperature phase, using numerical simulations of the theory discretized on a space-time lattice.
Andreas Athenodorou, Claudio Bonanno, Claudio Bonati, Giuseppe Clemente, Francesco D’Angelo, Massimo D’Elia, Lorenzo Maio, Guido Martinelli, Francesco Sanfilippo, Antonino Todaro   +9 more
doaj   +1 more source

Nonperturbative Casimir Effects: Vacuum Structure, Confinement, and Chiral Symmetry Breaking

Chiral Matter, 2023
The review of vacuum and matter restructuring in space-time with boundaries is presented. We consider phase properties of confining gauge theories and strongly interacting fermion systems. In particular, the chiral and deconfinement phase transitions properties in the presence of Casimir plates.
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Probing the singularities of the Landau-Gauge gluon and ghost propagators with rational approximants

Journal of High Energy Physics, 2023
We employ Padé approximants in the study of the analytic structure of the four-dimensional SU(2) Landau-gauge gluon and ghost propagators in the infrared regime.
D. Boito, A. Cucchieri, C. Y. London, T. Mendes   +3 more
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Thickness and Color Structure of Center Vortices in Gluonic SU(2) QCD

Particles, 2020
In search for an effective model of quark confinement we study the vacuum of SU(2) quantum chromodynamic with lattice simulations using Wilson action.
Rudolf Golubich, Manfried Faber
doaj   +1 more source

The strong CP problem solved by itself due to long-distance vacuum effects

Nuclear Physics B, 2023
The vacuum of quantum chromodynamics has an incredibly rich structure at the nonperturbative level, which is intimately connected with the topology of gauge fields, and put to a test by the strong CP problem.
Y. Nakamura, G. Schierholz
doaj   +1 more source

SU(N) fractional instantons and the Fibonacci sequence

Journal of High Energy Physics, 2022
We study, by means of numerical methods, new SU(N) self-dual instanton solutions on R × T 3 with fractional topological charge Q = 1/N. They are obtained on a box with twisted boundary conditions with a very particular choice of twist: both the number of
Jorge Dasilva Golán, Margarita García Pérez   +1 more
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Numerical determination of the width and shape of the effective string using Stochastic Normalizing Flows

Journal of High Energy Physics
Flow-based architectures have recently proved to be an efficient tool for numerical simulations of Effective String Theories regularized on the lattice that otherwise cannot be efficiently sampled by standard Monte Carlo methods.
Michele Caselle, Elia Cellini, Alessandro Nada   +2 more
doaj   +1 more source