Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-01-20
Phys.Rev. D67 (2003) 094008
Physics
High Energy Physics
High Energy Physics - Phenomenology
24 pages, latex file with three eps figures. BI-TP 2002/21
Scientific paper
10.1103/PhysRevD.67.094008
We examine the total cross section of virtual photons on protons, $\sigma_{\gamma^* p}(W^2,Q^2)$, at low $x \cong Q^2/W^2 \ll 1$ and its connection with ``elastic'' diffractive production $\gamma^*_{T,L}p \to X^{J=1}_{T,L} p$ in the two-gluon exchange dynamics for the virtual forward Compton scattering amplitude. Solely based on the generic structure of two-gluon exchange, we establish that the cross section is described by the (imaginary part of the) amplitude for forward scattering of $q \bar q$ vector states, $(q \bar q)^{J=1}_{T,L} p \to (q \bar q)^ {J=1}_{T,L} p$. The generalized vector dominance/color dipole picture (GVD/CDP) is accordingly established to only rest on the two-gluon-exchange generic structure. This is explicitly seen by the sum rules that allow one to directly relate the total cross section to the cross section for elastic diffractive forward production, $\gamma^*_{T,L} p\to (q \bar q)^{J=1}_{T,L} p$, of vector states.
Kuroda Masaaki
Schildknecht Dieter
No associations
LandOfFree
Deep inelastic scattering and "elastic" diffraction does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Deep inelastic scattering and "elastic" diffraction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Deep inelastic scattering and "elastic" diffraction will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-306961