Results 101 to 110 of about 62,213 (219)

NONEQUILIBRIUM CHIRAL DYNAMICS AND EFFECTIVE LAGRANGIANS [PDF]

open access: yesNon-Perturbative QCD, 2002
Talk given at the Sixth Workshop on Non-Perturbative Quantum Chromodynamics, Paris, 5-9 June 2001 (to appear in the Proceedings).
openaire   +2 more sources

Pseudoscalar Field as a Possible Candidate for Phantom Field

open access: yesAdvances in High Energy Physics, Volume 2025, Issue 1, 2025.
We demonstrate the existence of a single pseudoscalar (PS) field in the mathematically backed and parity‐preserving modifications of the standard Stückelberg formalism (SSF) in the context of the Lagrangian formulation of the (i) two (1 + 1)‐dimensional (2D) massive Abelian 1‐form gauge theory, (ii) three (2 + 1)‐dimensional (3D) massive Abelian 2‐form
E. Harikumar, R. P. Malik, Burak Bilki
wiley   +1 more source

Interplay Between MW, ΩCDMh2, and (g − 2)μ in Flavor Symmetry–Based Supersymmetric Models

open access: yesAdvances in High Energy Physics, Volume 2025, Issue 1, 2025.
We study the phenomenological implications of the minimal supersymmetric standard model (MSSM) augmented by a nonabelian flavor symmetry labeled as sMSSM. Incorporating this flavor symmetry allows for a significant reduction in the original plethora of free parameters present in the MSSM, ultimately reducing them down to just seven in sMSSM.
Sajid Israr   +4 more
wiley   +1 more source

Extracting the chiral anomaly from e + e − → 3π

open access: yesJournal of High Energy Physics
The strength of the interaction of three pions and a photon, F 3π is predicted by the axial anomaly in terms of the pion decay constant, a relation that is frequently used to constrain low-energy radiative processes involving pions, but only tested ...
Martin Hoferichter   +2 more
doaj   +1 more source

Chiral effective Lagrangian and quark masses [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2003
The status of lattice determinations of quark masses is reviewed (with the exception of m_b). Attempts to extract the low-energy constants in the effective chiral Lagrangian are discussed, with special emphasis on those couplings which are required to test the hypothesis of a massless up-quark.
openaire   +2 more sources

Advances in Miniaturized Computational Spectrometers

open access: yesAdvanced Science, Volume 11, Issue 47, December 18, 2024.
This review presents a comprehensive overview of miniaturized computational spectrometers, focusing on spectral encoding strategies and reconstruction algorithms. The analysis includes recent advances, optimization strategies, performance metrics, and considerations for practical applications.
Qian Xue   +8 more
wiley   +1 more source

Chiralspin Symmetry and Its Implications for QCD

open access: yesUniverse, 2019
In a local gauge-invariant theory with massless Dirac fermions, a symmetry of the Lorentz-invariant fermion charge is larger than a symmetry of the Lagrangian as a whole.
Leonid Glozman
doaj   +1 more source

Effective quark Lagrangian in the instanton-gas model

open access: yes, 1997
A straightforward derivation of the effective quark Lagrangian is presented for the topologically neutral chiral broken phase of the dilute instanton gas. The resulting quark Lagrangian is a nonlocal NJL-type and contains 4q, 6q,...
Simonov, Yu. A.
core   +1 more source

Exotic meson decays in the environment with chiral imbalance

open access: yesEPJ Web of Conferences, 2017
An emergence of Local Parity Breaking (LPB) in central heavy-ion collisions (HIC) at high energies is discussed. LPB in the fireball can be produced by a difference between the number densities of right- and left-handed chiral fermions (Chiral Imbalance)
Andrianov A. A.   +4 more
doaj   +1 more source

On chiral excitations with exotic quantum numbers

open access: yesPhysics Letters B, 2019
We consider the flavour sextet of charmed meson resonances with JP=1+ quantum numbers that is predicted by the leading order chiral Lagrangian with up, down and strange quarks.
Xiao-Yu Guo, Yonggoo Heo, M.F.M. Lutz
doaj   +1 more source

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