Polarizing a stored proton beam by spin flip?
2009 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 674, no 4-5, 269-275 p.Article in journal (Refereed) Published
We discuss polarizing a proton beam in a storage ring, either by selective removal or by spin flip of the stored ions. Prompted by recent, conflicting calculations, we have carried out a measurement of the spin-flip cross section in low-energy electron–proton scattering. The experiment uses the cooling electron beam at COSY as an electron target. The measured cross sections are too small for making spin flip a viable tool in polarizing a stored beam. This invalidates a recent proposal to use co-moving polarized positrons to polarize a stored antiproton beam.
Place, publisher, year, edition, pages
Elsevier B.V. , 2009. Vol. 674, no 4-5, 269-275 p.
Polarized beams, Storage rings, Electron–proton scattering, Antiprotons
Subatomic Physics Physical Sciences
Research subject Physics
IdentifiersURN: urn:nbn:se:su:diva-38604DOI: doi:10.1016/j.physletb.2009.03.037ISI: 000265622500005OAI: oai:DiVA.org:su-38604DiVA: diva2:311238