Results 21 to 30 of about 96,191 (298)

A simple mass-splitting mechanism in the Skyrme model

open access: yesPhysics Letters B, 2018
It is shown that the addition of a single chiral symmetry breaking term to the standard ω-meson variant of the nuclear Skyrme model can reproduce the proton–neutron mass difference.
J.M. Speight
doaj   +1 more source

Proper-time method for unequal masses

open access: yesPhysics Letters B, 2021
The result of removing of heavy non-equal mass particles from the theory can be described, at low energy, by the effective action, which is a series in inverse-square powers of the mass.
A.A. Osipov
doaj   +1 more source

Confinement and Chiral Symmetry Breaking from an ensemble of interacting Instanton-dyons(monopoles) in SU(2) QCD

open access: yesEPJ Web of Conferences, 2017
We show how the increase in the Instanton-dyon density can explain both Confinement and Chiral symmetry breaking. We simulate an ensemble of 64 interacting Instanton-dyons for 2 colors and 0 or 2 quark flavors.
Larsen Rasmus
doaj   +1 more source

Evolution of holographic Fermi arcs from a Mott insulator

open access: yesJournal of High Energy Physics, 2018
We study fermions in asymptotically anti-de Sitter black hole spacetimes which interact via novel chiral symmetry-preserving interactions. Computing the dual fermion two-point correlator, we show that these bulk interactions anisotropically gap Fermi ...
Garrett Vanacore   +2 more
doaj   +1 more source

Non-Hermitian BCS-BEC crossover of Dirac fermions

open access: yesJournal of High Energy Physics, 2021
We investigate chiral symmetry breaking in a model of Dirac fermions with a complexified coupling constant whose imaginary part represents dissipation.
Takuya Kanazawa
doaj   +1 more source

The Zero Temperature Chiral Phase Transition in SU(N) Gauge Theories [PDF]

open access: yes, 1996
We investigate the zero temperature chiral phase transition in an SU(N) gauge theory as the number of fermions $N_f$ is varied. We argue that there exists a critical number of fermions $N_f^c$, above which there is no chiral symmetry breaking or ...
B. Holdom   +28 more
core   +2 more sources

Confinement, Chiral Symmetry Breaking and it's Restoration using Dual QCD Formalism

open access: yesEPJ Web of Conferences, 2018
Utilizing the dual QCD model in term of magnetic symmetry structure of non- Abelian gauge theories, the dynamical chiral-symmetry breaking using Schwinger-Dyson equation has been investigated.
Punetha Garima, Chandola H.C.
doaj   +1 more source

Magnetic catalysis and the chiral condensate in holographic QCD

open access: yesJournal of High Energy Physics, 2020
We investigate the effect of a non-zero magnetic field on the chiral condensate using a holographic QCD approach. We extend the model proposed by Iatrakis, Kiritsis and Paredes in [1] that realises chiral symmetry breaking dynamically from 5d tachyon ...
Alfonso Ballon-Bayona   +2 more
doaj   +1 more source

Chiral symmetry restoration in excited hadrons, quantum fluctuations, and quasiclassics

open access: yes, 2005
In this paper, we discuss the transition to the semiclassical regime in excited hadrons, and consequently, the restoration of chiral symmetry for these states.
A. V. Nefediev   +14 more
core   +1 more source

On Lattice QCD with Many Flavors [PDF]

open access: yes, 1997
We discuss the confining and chiral-symmetry breaking properties of QCD with a large number of flavors $N_f$. In a Monte Carlo simulation of QCD with $N_f =16$ staggered fermions, we find clear evidence of a first order bulk phase transition which ...
A. Krasnitz   +27 more
core   +2 more sources

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