Results 91 to 100 of about 27,828 (268)
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
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
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 +1 more source
, 1992 This paper considers the implications of the heavy quark and chiral symmetries for the semi-leptonic decay $B \rightarrow D^* X \ell \bar \nu_\ell$. The general kinematic analysis for decays of the form {\sl pseudoscalar meson $\rightarrow$ vector meson $
A. Pais +10 more
core +1 more source
New methods for B meson decay constants and form factors from lattice NRQCD [PDF]
, 2017 We determine the normalisation of scalar and pseudoscalar current operators made from non-relativistic $b$ quarks and Highly Improved Staggered light quarks in lattice Quantum Chromodynamics (QCD) through $\mathcal{O}(\alpha_s)$ and $\Lambda_{\text{QCD}}/
Davies, C. T. H. +2 more
core +2 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
Electromagnetic form factors of light vector mesons [PDF]
, 1998 The electromagnetic form factors G_E(q^2), G_M(q^2), and G_Q(q^2), charge radii, magnetic and quadrupole moments, and decay widths of the light vector mesons rho^+, K^{*+} and K^{*0} are calculated in a Lorentz-covariant, Dyson-Schwinger equation based ...
A. Bashir +27 more
core +2 more sources
Leptonic and semileptonic decays of pseudoscalar mesons [PDF]
Physics Letters B, 1999 12 pages LaTeX (elsart.sty) + 4 figures; added references, to appear in Phys.
M. A. IVANOV, SANTORELLI, PIETRO
openaire +3 more sources
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 +1 more source
On the mass relation of a meson nonet [PDF]
, 2002 It is pointed out that the omission of the effects of the transition between quarkonia or the assumption that the transition between quarkonia is flavor-independent would result in the inconsistent results for the pseudoscalar meson nonet.
DE-MIN LI +8 more
core +2 more sources