φ-meson photoproduction off the protons by using linearly polarized photons in the mid-to higher-t regimes at threshold energies
Observables from vector meson photo production by linearly-polarized photons can be expressed in term of bllinear combinations of helicity amplitudes parameterized by the Spin Density Matrix Elements (SDMEs). These SDMEs give straightforward relations for understanding the nature of the parity exchange at threshold energies, as well as for extracting signatures of the Okubo-Zweig-Iizuka violation. This paper will show preliminary measurements of SDMEs for (γ)p→φp in the photon energy range of 1.7 to 1.9 GeV (momentum transfer squared t range of-1.2 to-0.25 GeV~2) and 1.9 to 2.1 GeV (t range of-1.4 to-0.25 GeV~2) from the g8b experimental data collected in the summer of 2005 in the Hall B of Jefferson Lab.
photoproduction of φ-mesons linearly-polarized photons polarization observables
Julian Salamanca Philip L.Cole
Idaho State University,Department of Physics,Pocatello,ID 83209-8106,USA;Thomas Jefferson National Laboratory.Newport News,VA 23606,USA
国际会议
The 12th International Workshop on the Physics Ezcited Nucleon(2009核子共振态物理国际研讨会)
北京
英文
1349-1353
2009-04-19（万方平台首次上网日期，不代表论文的发表时间）