Large Logarithms in the Beam Normal Spin Asymmetry of Elastic Electron--Proton Scattering

Details Large Logarithms in the Beam Normal Spin Asymmetry of Elastic Electron--Proton Scattering Large Logarithms in the Beam Normal Spin Asymmetry of Elastic Electron--Proton Scattering

2004-06-10

arxiv.org/abs/hep-ph/0406127v2

Phys.Rev.D70:073002,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 6 figures; typos fixed, a reference added

Scientific paper

10.1103/PhysRevD.70.073002

We study a parity-conserving single-spin beam asymmetry of elastic electron-proton scattering induced by an absorptive part of the two-photon exchange amplitude. It is demonstrated that excitation of inelastic hadronic intermediate states by the consecutive exchange of two photons leads to logarithmic and double-logarithmic enhancement due to contributions of hard collinear quasi-real photons. The asymmetry at small electron scattering angles is expressed in terms of the total photoproduction cross section on the proton, and is predicted to reach the magnitude of 20-30 parts per million. At these conditions and fixed 4-momentum transfers, the asymmetry is rising logarithmically with increasing electron beam energy, following the high-energy diffractive behavior of total photoproduction cross section on the proton.

Affiliated with

Also associated with

No associations

Rating

Large Logarithms in the Beam Normal Spin Asymmetry of Elastic Electron--Proton Scattering 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 Large Logarithms in the Beam Normal Spin Asymmetry of Elastic Electron--Proton Scattering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Large Logarithms in the Beam Normal Spin Asymmetry of Elastic Electron--Proton Scattering will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-106293