منابع مشابه
Rho-meson mass in light nuclei
The quark-meson coupling (QMC) model is applied to a study of the mass of the ρ-meson in helium and carbon nuclei. The average mass of a ρ-meson formed in 3,4He and C is expected to be around 730, 690 and 720 MeV, respectively. PACS numbers: 24.85.+p, 24.10.Jv, 12.39.Ba [email protected] [email protected] [email protected] 1 As the nuclear environment ch...
متن کاملMagnetic moment of the ρ meson in light cone QCD
The magnetic moment μ of the ρ meson is studied in the light cone QCD sum rule, and it is found that μ = (2.2± 0.2). A comparison of our result on the magnetic moment of the ρ meson with the predictions of the other approaches, is presented. PACS numbers: 11.50.Hx, 13.40.Em e-mail: [email protected] e-mail: [email protected] e-mail: [email protected]
متن کاملVector meson dominance and the ρ meson
We discuss the properties of vector mesons, in particular the ρ 0 , in the context of the Hidden Local Symmetry (HLS) model. This provides a unified framework to study several aspects of the low energy QCD sector. Firstly, we show that in the HLS model the physical photon is massless, without requiring off field diagonalization. We then demonstrate the equivalence of HLS and the two existing re...
متن کاملNew Results in ρ 0 Meson Physics
We compare the predictions of a range of existing models based on the Vector Meson Dominance hypothesis with data on e+e− → π+π− and e+e− → μ+μ− Permanent address. Present address. cross-sections and the phase and near-threshold behavior of the timelike pion form factor, with the aim of determining which (if any) of these models is capable of providing an accurate representation of the full ran...
متن کاملDisintegration of Light Nuclei by ( i - Meson Capture
o-stars in photographic plates are classified into those originated from heavy and light nuclei. The branching ratio of disintegration modes, the a-j ratio, and the energy distribution of emitted particles are measured for light stars. Foilowing characteristic features of light stars are ascertained; 1) the large prong number, 2) the large a-p ratio, 3) the low kinetic energy of emitted particl...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 1997
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.56.566