Results 101 to 110 of about 2,429 (218)
An Algebraic Roadmap of Particle Theories
Annalen der Physik, Volume 537, Issue 4, April 2025.Algebraic models of particle physics are often met with recurring obstacles. An ideal algebraic model should ‘1e conform to the Coleman‐Mandula theorem, ‘2e evade familiar fermion doubling problems, ‘3e naturally explain the Standard Model's chirality, ‘4e exclude B‐L gauge symmetry at low energy, and ‘5e explain the existence of three generations ...
Nichol Furey
wiley +1 more source
Towards a lattice calculation of the coefficients of the QCD chiral Lagrangian [PDF]
, 1997 We discuss a general strategy to compute the coefficients of QCD chiral Lagrangian by using the lattice regularization of QCD with Wilson fermions. This procedure requires the introduction of an effective Lagrangian for lattice QCD as an intermediate ...
Rebbi C., LUBICZ, Vittorio, Levi AR
core
Spin Observables in Pion Photoproduction and Nucleon Compton Scattering from the Chiral Lagrangian and Dispersion Relations [PDF]
, 2016 A scheme based on the chiral Lagrangian, analyticity and unitarity is applied to spin observables in pion photoproduction and nucleon Compton scattering.
M. F. M. Lutz +8 more
core +1 more source
Chiral effective Lagrangian and quark masses [PDF]
Nuclear 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
Visible GeV ALP from TeV Vector‐Like Leptons
Fortschritte der Physik, Volume 73, Issue 3, March 2025.Abstract A model is presented where a GeV axion‐like‐particle (ALP) is predicted in a large portion of the parameter space due to the presence of explicit Peccei–Quinn (PQ) symmetry‐breaking terms in an exotic leptonic sector. The latter provides a solution to the muon g−2$g-2$ anomaly, within the framework of the Linear Seesaw neutrino mechanism.
Arturo de Giorgi +2 more
wiley +1 more source
Comment on “Primary Dimensions”
European Physical Journal C: Particles and FieldsWe show that the concept of primary dimensions, first introduced in [1] as an organizing principle for chiral Lagrangians, is inconsistent. Although this had been pointed out already in [2], the notion of primary dimensions has re-appeared in recent ...
G. Buchalla +3 more
doaj +1 more source
Micropolar Elastoplasticity Using a Fast Fourier Transform‐Based Solver
International Journal for Numerical Methods in Engineering, Volume 126, Issue 1, 15 January 2025.ABSTRACT This work presents a micromechanical spectral formulation for obtaining the full‐field and homogenized response of elastoplastic micropolar composites. A closed‐form radial‐return mapping is derived from thermodynamics‐based micropolar elastoplastic constitutive equations to determine the increment of plastic strain necessary to return the ...
Noah M. Francis +3 more
wiley +1 more source
Electroweak chiral Lagrangian for a hypercharge-universal topcolor model [PDF]
, 2009 Electroweak chiral Lagrangian for a hypercharge-universal topcolor model is investigated. We find that the assignments of universal hypercharge improve the results obtained previously from K.
Jiang, Shao-Zhou +2 more
core +1 more source
NONEQUILIBRIUM CHIRAL DYNAMICS AND EFFECTIVE LAGRANGIANS [PDF]
Non-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
Extracting the chiral anomaly from e + e − → 3π
Journal of High Energy PhysicsThe 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