Hadronic decays of mesonsCharmed mesonsBottom mesonsWe propose a four-quark structure for some of the excited states of heavy mesons containing a single charm or bottom quark. The four-quark wave functions are constructed based on a diquark-antidiquark form under the constraint that they form ...
Two quark propagators with different analytic structure are employed in Bethe-Salpeter type equations for the pion and scalar diquark form factors. One of the quark propagators has been calculated with the inclusion of a trivial (bare) quark-gluon vertex and, as a consequence, contains a compl...
Phenomenological delineation of the quark-gluon structure from nucleon electromagnetic form factors We investigate a synthesis of topological chiral models with the vector meson dominance idea, with applications to nucleon and pion electromagnetic form fa... GE Brown,M Rho,W Weise - 《Nuclear Physics ...
We investigate the quark structure of D and B mesons in the framework of a constituent quark model. To this end, we assume a scalar confining and a one gluon exchange (OGE) potential. The parameters of the model are adopted to reproduce the meson mass spectrum. From a fit to ARGUS and...
A plateau-like structure is found in the symmetry energy of nuclear matter due to the multi-meson couplings, and it's crucial for understanding the neutron skin thickness of 208 P b ^{208}m Pb and the tidal deformation of neutron star from GW170817. At high density regions, the vector ...
vector meson dominanceWe study the structure of constituent quarks by dressing bare quarks with the Goldstone bosons and its implications for quark distribution functions of hadrons f1(x), g1(x) and h1(x). In particular we discuss effects of the dressing on the nucleon spin structure, and ...
anomalous chromomagnetic moments Isgur Wise function first order form factors second order form factors B decay into D+ lepton+neutrino/ A1320H B meson leptonic/semileptonic decays A1440M a and B mesons A1235H Phenomenological composite models of particle structure and reactions (partons, bags, ...
Short-range quark-quark correlations are introduced into the quark-meson coupling (QMC) model phenomenologically. We study the effect of the correlations on the structure of the nucleon in dense nuclear matter. With the addition of correlations, the saturation curve for symmetric nuclear matter is...
Based on the assumption of two-quark structure of the scalar meson $K_0^*(1430)$, we calculate the CP-averaged branching ratios for $B o K_0^*(1430) \\etap... Xin Liu,Zhi-qing Zhang,Zhen-Jun Xiao - arXiv: High Energy Physics - Phenomenology 被引量: 0发表: 2009年 加载更...
structure had also its dark side: with the exception of BEBC physicists around Perkins, the majority of the neutrino community ignored the theoretical advances of QCD which predicted that the quark–parton model was an approximation only and that `scaling' was violated with a specific dependence ...