Polarization effects in non-relativistic $ep$ scattering

Abstract

The cross section which addresses the spin-flip transitions of a proton (antiproton) interacting with a polarized non-relativistic electron or positron is calculated analytically. In the case of attraction, this cross section is greatly enhanced for sufficiently small relative velocities as compared to the result obtained in the Born approximation. However, it is still very small, so that the beam polarization time turns out to be enormously large for the parameters of $e^{\pm }$ beams available now. This practically rules out a use of such beams to polarize stored antiprotons or protons.

9 pages; version accepted for publication in Nucl.Instr.Methods B where cross sections without averaging over directions of relative velocities are added

References in corpus (3)

• Polarizing mechanisms for stored $p$ and $\bar{p}$ beams interacting with a polarized target
• Spin effects in $p\bar{p}$ interaction and their possible use to polarize antiproton beams
• A surprising method for polarising antiprotons

Cited by in corpus (12)

• Polarizing a stored proton beam by spin flip?
• Toward polarized antiprotons: Machine development for spin-filtering experiments
• Spin-dependent part of $p\bar{p}$ interaction cross section and Nijmegen potential
• Forward antiproton-deuteron elastic scattering and total spin-dependent antiproton-deuteron cross sections at intermediate energies
• Model independent analysis of polarization effects in elastic proton-electron scattering
• Coulomb effects in polarization transfer in elastic antiproton and proton electron scattering at low energies
• The Beauty of Spin
• Coulomb effects in the spin-dependent contribution to the intra-beam scattering rate
• Spin-dependent part of $\bar{p}d$ interaction cross section and Nijmegen potential
• Influence of Coulomb distortion on polarization observables in elastic electromagnetic lepton hadron scattering at low energies
• Kinetics of polarization in non-relativistic scattering
• A theoretical study of spin filtering and its application to polarizing antiprotons