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Exclusive Vector Meson Electro-production in the Pomeron Exchange Model

Author: LiuBaoRong
Tutor: TanZhenQiang；MaWeiXing
School: Guangxi University
Course: Theoretical Physics
Keywords: Vector Meson Production Diffraction process The Pomeron exchange of model
CLC: O572.3
Type: Master's thesis
Year: 2005
Downloads: 4
Quote: 0
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Abstract


Pomeron exchange theory , linear and non-linear Pomeron trajectory study the electrophysiological response of the vector meson , select a different center-of-mass energy calculation of the differential cross section of the J / ψ, Φ electrolyzed , predicted energy scale s 0 and wasted Q 2 of the differential cross section . For J / ψ electrolyzed , the calculation results with the experimental data very well , concluded : Pomeron exchange model to describe the J / ψ electrolyzed , virtuality Q 2 on the differential cross section linear Pomeron trajectory is nonlinear Pomeron trajectory a good approximation of the effects can be ignored , the energy scale s 0 | t | related to the differential cross section with momentum transfer , that is , in the case of smaller momentum transfer , the impact is relatively small , when the momentum transfer is relatively large ( | t | ≥ 1.25GeV 2 < / sup >) , almost no effect. At the same time , St. electrolyzed theoretical predictions : differential cross section of the virtual photon virtuality Q 2 and the energy scale s 0 change dependent moderate linear Pomeron the sub track is a good approximation of the nonlinear trajectory , particularly in the momentum transfer (| t | ≤ 0.2GeV 2 ) region .

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CLC: > Mathematical sciences and chemical > Physics > Nuclear physics,high energy physics > High-energy physics > Particle types
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