Results 21 to 30 of about 182,622 (338)

Symmetries and in-medium effects: Chiral symmetry breaking and modification of meson properties in a strongly interacting medium

open access: yesEPJ Web of Conferences, 2014
Chiral symmetry is a fundamental symmetry of Quantum Chromodynamics (QCD) in the limit of vanishing quark masses. In the hadronic sector chiral symmetry is broken; otherwise chiral partners - hadronic states with the same spin but opposite parity ...
Metag Volker
doaj   +1 more source

Toroidal electric dipole enabled chiral surface lattice resonances in stereo propeller metasurfaces

open access: yesAPL Photonics, 2023
Surface lattice resonances (SLRs) are the coherent collective interactions between periodically arranged nanoparticles, which are generally considered to be formed by the resonant electric dipole, magnetic dipole, or electric quadrupole moments of a ...
Qinglan Ling   +6 more
doaj   +1 more source

Chiral gauged fermions on a lattice [PDF]

open access: yes, 2000
The chiral fermion model with local multifermion interactions proposed in Nucl. Phys. B486 (1997) 282 and Phys. Rev. D61 (2000) 054502 processes an exact SU_L(2) chiral gauge symmetry and SU_L(2) by U_R(1) chiral flavour symmetry on a lattice and a ...
't Hooft   +51 more
core   +2 more sources

Symmetry-breaking in Chiral Polymerisation [PDF]

open access: yesOrigins of Life and Evolution of Biospheres, 2005
We propose a model for chiral polymerisation and investigate its symmetric and asymmetric solutions. The model has a source species which decays into left- and right-handed types of monomer, each of which can polymerise to form homochiral chains; these chains are susceptible to `poisoning' by the opposite handed monomer. Homochiral polymers are assumed
Wattis, Jonathan A.D., Coveney, Peter V.
openaire   +5 more sources

Naturally Light Scalars [PDF]

open access: yes, 1995
I argue that in certain chiral gauge theories composite scalars associated with chiral symmetry breaking can be light (i.e. lighter than naive scaling from QCD would suggest) without any fine-tuning.
Terning, John
core   +2 more sources

STRANGENESS AND CHIRAL SYMMETRY BREAKING [PDF]

open access: yesModern Physics Letters A, 2011
The implications of chiral symmetry breaking and SU(3) symmetry breaking have been studied in the chiral constituent quark model (χCQM). The role of hidden strangeness component has been investigated for the scalar matrix elements of the nucleon with an emphasis on the meson–nucleon sigma terms.
Dahiya, Harleen, Sharma, Neetika
openaire   +3 more sources

QCD chiral symmetry restoration with a large number of quarks in a model with a confining propagator and dynamically massive gluons

open access: yesPhysics Letters B, 2015
Considering a QCD chiral symmetry breaking model where the gap equation contains an effective confining propagator and a dressed gluon propagator with a dynamically generated mass, we verify that the chiral symmetry is restored for a large number of ...
R.M. Capdevilla, A. Doff, A.A. Natale
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

Symmetries of hadrons after unbreaking the chiral symmetry

open access: yes, 2012
We study hadron correlators upon artificial restoration of the spontaneously broken chiral symmetry. In a dynamical lattice simulation we remove the lowest lying eigenmodes of the Dirac operator from the valence quark propagators and study evolution of ...
C. B. Lang   +6 more
core   +1 more source

Vector Manifestation of Chiral Symmetry [PDF]

open access: yesPhysical Review Letters, 2001
Physical Review ...
Harada, Masayasu, Yamawaki, Koichi
openaire   +3 more sources

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