Results 151 to 160 of about 61,183 (280)

Internal symmetry implications of the Veneziano model in pseudoscalar-pseudoscalar scattering

Nuclear Physics B, 1969
Abstract The leading order Veneziano model amplitudes for ( J P ) 0 − × 0 − → 0 − × 0 − scattering ∗∗ constrained by the absence of “exotic” resonances, is shown to predict the coupling constant relation of SU(3) coupled with the quark-model/SU(6) ideal singlet-octet mixing in the 1 − , 2 + , nonets.
openaire   +2 more sources

QUARK STRUCTURE OF PSEUDOSCALAR MESONS [PDF]

International Journal of Modern Physics A, 2000
I review to which extent the properties of pseudoscalar mesons can be understood in terms of the underlying quark (and eventually gluon) structure. Special emphasis is put on the progress in our understanding of η–η′ mixing. Process-independent mixing parameters are defined, and relations between different bases and conventions are studied.
openaire   +2 more sources

Renormalization of the pseudoscalar operator at four loops in QCD

Journal of High Energy Physics
We present the renormalization constant of the pseudoscalar operator defined with a non-anticommuting γ 5 in dimensional regularization up to four-loop order in perturbative Quantum Chromodynamics (QCD).
Long Chen, Michał Czakon, Marco Niggetiedt   +2 more
doaj   +1 more source

Radiative decays of vector and pseudoscalar nonets

EPJ Web of Conferences, 2012
Using a counting scheme which treats the light pseudoscalar and the light vector-meson nonet on equal footing, the decays of the narrow light vector mesons into a pseudoscalar meson and a dilepton and of the η′ meson into an ɷ meson and a dielectron are ...
Lutz M.F.M., Leupold S., Terschlüsen C.
doaj   +1 more source

Nuclear Forces from Pseudoscalar Meson Theory [PDF]

, 1953
M. Ruderman
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Pseudoscalar Higgs plus jet production at Next-to-Next-to-Leading Order in QCD

Journal of High Energy Physics
We present a calculation of pseudoscalar Higgs production in association with a jet at Next-to-Next-to Leading Order (NNLO) accuracy in QCD. We work in an effective field theory in which m t → ∞ resulting in effective operators which couple the ...
Youngjin Kim, Ciaran Williams
doaj   +1 more source

On the Effects of Excited States of Nucleons upon Static Nuclear Potential in Symmetrical Pseudoscalar Meson Theory, I: Derivation of Nuclear Potential and Qualitative Conclusions [PDF]

, 1953
T. Matsumoto, Tetsuo Hamada, Mitsuru Sugawara   +2 more
openalex   +1 more source

On the precision of a data-driven estimate of the pseudoscalar-pole contribution to hadronic light-by-light scattering in the muon g−2

EPJ Web of Conferences, 2016
The evaluation of the numerically dominant pseudoscalar-pole contribution to hadronic light-bylight scattering in the muon g − 2 involves the pseudoscalar-photon transition form factor FPγ*γ*(−Q12−Q22) with P = π0, η, η′ and, in general, two off-shell ...
Nyffeler Andreas
doaj   +1 more source

Synthetic complex Weyl superconductors, chiral Josephson effect and synthetic half-vortices. [PDF]

Sci Rep, 2023
Faraei Z, Jafari SA.
europepmc   +1 more source

On the Effects of Excited States of Nucleons upon Static Nuclear Potential in Symmetrical Pseudoscalar Meson Theory, II [PDF]

, 1954
T. Matsumoto, Masao Sugawara
openalex   +1 more source