Results 81 to 90 of about 28,157 (248)
Relativistic corrections to the pair Bc-meson production in e+e− annihilation
Nuclear Physics B, 2016 Relativistic corrections to the pair Bc-meson production in e+e−-annihilation are calculated. We investigate a production of pair pseudoscalar, vector and pseudoscalar+vector Bc-mesons in the leading order perturbative quantum chromodynamics and ...
A.A. Karyasov +2 more
doaj +1 more source
Pseudoscalar meson transition form factors [PDF]
Progress in Particle and Nuclear Physics, 2012 Abstract The existing data on pseudoscalar meson transition form factors are described by the sophisticated Unitary & Analytic model and are well elaborated for pseudoscalar mesons and 1 / 2 + octet baryons. Knowing the transition form factors, σ t o t ( e + e − → P γ ) are specified and the ...
S. Dubnicka, A.Z. Dubnickova, A. Liptaj
openaire +1 more source
Annalen der Physik, Volume 536, Issue 1, January 2024.A primer on axion physics, emphasizing an intuitive understanding of why the axion solves the strong CP problem. Abstract The canonical axion potential is reviewed, with an emphasis on the field theory underlying radial and angular modes of complex scalar fields.
Felix Yu
wiley +1 more source
Physics Letters B, 2017 The Covariant Spectator Theory (CST) is used to calculate the mass spectrum and vertex functions of heavy–light and heavy mesons in Minkowski space. The covariant kernel contains Lorentz scalar, pseudoscalar, and vector contributions.
Sofia Leitão +3 more
doaj +1 more source
Mixing of eta-eta' Mesons in J/psi Decays into a Vector and a Pseudoscalar Meson
, 1997 The octet-singlet mixing angle $\theta_P$ in the pseudoscalar meson nonet is deduced from the rich set of accurate data on $J/\psi$ decays into a vector and a pseudoscalar meson.
Bramon, A. +2 more
core +1 more source
The eta and eta' mesons from lattice QCD [PDF]
, 2001 Lattice QCD allows a first-principles study of QCD with the freedom to vary the number and masses of the quarks. I present results on the flavour singlet correlations (this illuminates OZI violating effects) for mesons.
Michael, C.
core +2 more sources
q‐Deformed Glueball Spectrum in AdS/QCD Correspondence
Advances in High Energy Physics, Volume 2024, Issue 1, 2024.This work presents the application of the q‐algebra in the glueball spectrum. This algebra is implemented through Jackson’s derivatives in a Schrödinger‐like equation resulting from the gravity fluctuations around the braneworld scenario in five dimensions.
Fabiano F. Santos +2 more
wiley +1 more source
Exploring solutions to the muon g-2 anomaly in a 3-3-1 model under flavor constraints
European Physical Journal C: Particles and FieldsThe magnetic moment of the muon can receive significant two-loop contributions from a light pseudoscalar. Notably, the spectrum of scalars of 3-3-1 models includes one pseudoscalar.
A. Doff +2 more
doaj +1 more source
Low lying axial-vector mesons as dynamically generated resonances [PDF]
, 2005 We make a theoretical study of the s-wave interaction of the nonet of vector mesons with the octet of pseudoscalar mesons starting from a chiral invariant Lagrangian and implementing unitarity in coupled channels.
E. Oset, J. Singh, L. Roca, Y. Tomozawa
core +3 more sources
Next-to-leading order corrections to deeply virtual production of pseudoscalar mesons
Physics Letters B, 2017 We complete the perturbative next-to-leading order corrections to the hard scattering amplitudes of deeply virtual meson leptoproduction processes at leading twist-two level by presenting the results for the production of flavor singlet pseudoscalar ...
G. Duplančić +2 more
doaj +1 more source