Results 51 to 60 of about 65,037 (303)
Study of the pseudoscalar glueball in J/ψ radiative decays [PDF]
Physical Review D, 2019 We aim to explore the production rate of the pseudoscalar glueball in $J/\psi$ radiative decay by lattice QCD in quenched approximation. The calculation is performed on three anisotropic lattices with the spatial lattice spacing ranging from 0.222(2) fm ...
L. Gui +3 more
semanticscholar +1 more source
Nπ -state contamination in lattice calculations of the nucleon pseudoscalar form factor [PDF]
Physical Review D, 2019 The nucleon-pion-state contribution in the QCD 3-point function of the pseudoscalar density is calculated to leading order in chiral perturbation theory. It predicts a nucleon-pion-state contamination in lattice estimates for the pseudoscalar form factor
O. Bär
semanticscholar +1 more source
New meson mass relation and lowest pseudoscalar glueball mass [PDF]
Chin.Phys. 10 (2001) 611-612, 2000 A new meson mass relation for meson nonet is given after considering mixing with glueball. The mixing between pseudoscalar mesons and pseudoscalar glueball will decrease the mass of glueball by about 500 Mev. So, according to the predicted mass of the pure pseudoscalar glueball given by lattice calculation and effective Hamiltonian, the expected mass ...
arxiv +1 more source
The Schwinger Nonet Mass and Sakurai Mass-Mixing Angle Formulae Reexamined [PDF]
, 1998 We study the origins of the inaccuracies of Schwinger's nonet mass, and the Sakurai mass-mixing angle, formulae for the pseudoscalar meson nonet, and suggest new versions of them, modified by the inclusion of the pseudoscalar decay constants.
Dashen +11 more
core +3 more sources
Probing the light pseudoscalar window [PDF]
Physical Review D, 2003 22 pages, 4 ...
Christopher D. Carone +2 more
openaire +2 more sources
, 2015 We establish a new covariant phenomenological model, which describes an influence of pseudoscalar (axion) field on spins of test massive particles. The model includes general relativistic equations of particle motion and spin evolution in background ...
Balakin, Alexander B. +1 more
core +2 more sources
Decay constants of pseudoscalar and vector mesons with improved holographic wavefunction [PDF]
Chinese Physics C, High Energy Physics & Nuclear Physics, 2018 We calculate the decay constants of light and heavy-light pseudoscalar and vector mesons with improved soft-wall holographic wavefuntions, which take into account the effects of both quark masses and dynamical spins.
Qin 钦 Chang 常 +3 more
semanticscholar +1 more source
Two and three pseudoscalar production in e + e − annihilation and their contributions to (g − 2) μ
Journal of High Energy Physics, 2021 A coherent study of e + e − annihilation into two (π + π − , K + K − ) and three (π + π − π 0 , π + π − η) pseudoscalar meson production is carried out within the framework of resonance chiral theory in energy region E ≲ 2 GeV. The work of [L.Y.
Wen Qin, Ling-Yun Dai, Jorge Portolés
doaj +1 more source
New Limits on the Couplings of Light Pseudoscalars from Equivalence Experiments [PDF]
Phys.Rev.Lett. 82 (1999) 4753-4756, 1999 The exchange of light pseudoscalar quanta between fermions leads to long-range spin-dependent forces in order g^2, where g is the pseudoscalar-fermion coupling constant. We demonstrate that laboratory bounds on the Yukawa couplings of pseudoscalars to nucleons can be significantly improved using results from recent equivalence principle experiments ...
arxiv +1 more source
A light NMSSM pseudoscalar Higgs boson at the LHC redux [PDF]
, 2015 The Next-to-Minimal Supersymmetric Standard Model (NMSSM) contains a singlet-like pseudoscalar Higgs boson in addition to the doublet-like pseudoscalar of the Minimal Supersymmetric Standard Model.
Bomark, Nils-Erik +3 more
core +2 more sources