Results 101 to 110 of about 62,328 (197)
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
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
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
Advances in Mathematical Physics, Volume 2025, Issue 1, 2025.In this work, the reduced spin Hirota–Maxwell–Bloch (rsHMB) equation is examined analytically. This model is useful for characterizing the propagation of femtosecond pulses in an erbium‐doped fiber. The optical soliton solutions of the introduced rsHMB problem are constructed using the Jacobi elliptic function (JEF) expansion technique.
Asma Taskeen +5 more
wiley +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
Corrections to Chiral Dynamics of Heavy Hadrons: (I) 1/M Correction
, 1993 In earlier publications we have analyzed the strong and radiative decays of heavy hadrons in a formalism which incorporates both heavy-quark and chiral symmetries.
A. F. Falk +40 more
core +1 more source
Chiralspin Symmetry and Its Implications for QCD
Universe, 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
On the large-$N_c$ behavior of the $L_7$ coupling in $\chi$PT
, 1994 It is shown that the usual large-$N_c$ counting of the coupling constant $L_{7}$ of the ${\cal O}(p^4)$ low-energy chiral $SU(3)$ Lagrangian \cite{GL85} is in conflict with general properties of QCD in the large-$N_c$ limit. The solution of this conflict
't Hooft +17 more
core +1 more source
On chiral excitations with exotic quantum numbers
Physics 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