Results 171 to 180 of about 58,381 (265)

Exact formula of the spectrum of the pseudoscalar octet

open access: yesPhysics Letters B, 2015
Non-perturbative proof is presented of a generalized version of Goldstone theorem, where the Lagrangian conserves an approximate SU(3) chiral symmetry, that both quark masses and electromagnetism make contributions to the masses of spinless particles of ...
R. Ling, B.L. Li, J.L. Ping
doaj  

Short-distance constraints for the longitudinal component of the hadronic light-by-light amplitude: an update. [PDF]

open access: yesEur Phys J C Part Fields, 2021
Colangelo G   +4 more
europepmc   +1 more source

Polarizability of pseudoscalar mesons from the lattice calculations

open access: yesEPJ Web of Conferences, 2016
We explore the energy dependence of neutral and charge pions of the background constant abelian magnetic field in SU(3) lattice gauge theory without dynamical quarks. The energy of neutral pseudoscalar meson diminishes with the field, while the energy of
Luschevskaya E.V.   +2 more
doaj   +1 more source

Derivation of Meson Masses in SU(3) and SU(4) Extended Linear Sigma Model at Finite Temperature

open access: yesParticles
The present study focused on the mesonic potential contributions to the Lagrangian of the extended linear sigma model (eLSM) for scalar and pseudoscalar meson fields across various quark flavors.
Abdel Nasser Tawfik   +5 more
doaj   +1 more source

A viable Le-Lμ model with μ→e violation. [PDF]

open access: yesEur Phys J C Part Fields, 2023
Ardu M, Kirk F.
europepmc   +1 more source

Measurement of branching fractions for D meson decaying into ϕ meson and a pseudoscalar meson

open access: yesPhysics Letters B, 2019
The four decay modes D0→ϕπ0, D0→ϕη, D+→ϕπ+, and D+→ϕK+ are studied by using a data sample taken at the centre-of-mass energy s=3.773 GeV with the BESIII detector, corresponding to an integrated luminosity of 2.93 fb−1.
M. Ablikim   +487 more
doaj  

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