Results 191 to 200 of about 142,204 (303)
Quarkonia and heavy-light mesons in a covariant quark model
EPJ Web of Conferences, 2016 Preliminary calculations using the Covariant Spectator Theory (CST) employed a scalar linear confining interaction and an additional constant vector potential to compute the mesonic mass spectra.
Leitão Sofia +3 more
doaj +1 more source
Short-distance constraints for the longitudinal component of the hadronic light-by-light amplitude: an update. [PDF]
Eur Phys J C Part Fields, 2021 Colangelo G +4 more
europepmc +1 more source
Strange-Quark Vector Current Pseudoscalar-Meson Transition Form Factors [PDF]
Fizika B13 (2004) 295-304, 2004 Similarly to the electromagnetic pseudoscalar-meson transition form factors one can define also strange-quark vector current pseudoscalar-meson transition form factors, contributing only to a behaviour of the isoscalar parts of the previous ones. Their explicit form is found by constructing unitary and analytic models of the strange pseudoscalar-meson ...
arxiv
Pseudoscalar meson decay constants f_K, f_D and f_Ds, from Nf=2 twisted mass Lattice QCD
, 2008 We present the results of a lattice QCD calculation of the pseudoscalar meson decay constants f_K, f_D and f_Ds, performed with N_f=2 dynamical fermions.
B. Blossier +3 more
semanticscholar +1 more source
Exact formula of the spectrum of the pseudoscalar octet
Physics 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
Semileptonic decay of Ds+→π0ℓ+νℓ via neutral meson mixing
Physics Letters B, 2020 Based on the mechanism of neutral meson mixing, we predict the branching fraction of the semileptonic decay of Ds+→π0ℓ+νℓ (ℓ=e, μ) using recently measured branching fraction of Ds+→ηe+νe by BESIII experiment.
Hai-Bo Li, Mao-Zhi Yang
doaj
A Model of Pseudoscalar Mesons with the Z3= 0 [PDF]
, 1966 Kenji Hayashi, Takeshi Shirafuji
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Polarizability of pseudoscalar mesons from the lattice calculations
EPJ 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
Some relations on the scattering of pseudoscalar mesons off baryons implied by a relativistic SU(6) symmetry model [PDF]
, 1965 W. Rühl
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