Results 71 to 80 of about 25,991 (134)
Highlights of light meson spectroscopy at the BESIII experiment. [PDF]
Natl Sci Rev, 2021 Jin S, Shen X.
europepmc +1 more source
η′ Meson as a pseudoscalar gluonium
Physics Letters B, 1979 Abstract QCD sum rules induced by the current G μν a Ḡ μν a constructed from gluon field operators are derived. Saturating the sum rules by η′ rough estimates for the η′ mass and its residue are found. The difference between the η′ and typical quark states such as ϱ is noted.
Arkady Vainshtein +3 more
openaire +2 more sources
Off-shell Behavior of the $\pi\!-\!\eta$ Mixing Amplitude
, 1993 We extend a recent calculation of the momentum dependence of the $\rho-\omega$ mixing amplitude to the pseudoscalar sector. The $\pi\!-\!\eta$ mixing amplitude is calculated in a hadronic model where the mixing is driven by the neutron-proton mass ...
A. Coon +24 more
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The role of strangeness in chiral and U ( 1 ) A restoration. [PDF]
Eur Phys J C Part Fields, 2021 Gómez Nicola A +3 more
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The charm-quark contribution to light-by-light scattering in the muon ( g - 2 ) from lattice QCD. [PDF]
Eur Phys J C Part Fields, 2022 Chao EH +4 more
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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
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A viable Le-Lμ model with μ→e violation. [PDF]
Eur Phys J C Part Fields, 2023 Ardu M, Kirk F.
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Study of the standard model with weak decays of charmed hadrons at BESIII. [PDF]
Natl Sci Rev, 2021 Li HB, Lyu XR.
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The D ∗ Dπ and B ∗ Bπ couplings from light-cone sum rules. [PDF]
J High Energy Phys, 2021 Khodjamirian A +3 more
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