Polarizing stored beams by interaction with polarized electrons

C. J. Horowitz, H. O. Meyer

Research output: Contribution to journalArticlepeer-review

32 Scopus citations


A polarized, internal electron target gradually polarizes a proton beam in a storage ring. Here we derive the spin-transfer cross section for e(p,p)e scattering. A recent measurement of the polarizing effect of a polarized atomic hydrogen target is explained when the effect of the atomic electrons is included. We also consider the interaction of a stored beam with a pure electron target which can be realized either by a comoving electron beam or by trapping of electrons in a potential well. In the future, this could provide a practical way to polarize antiprotons.

Original languageEnglish
Pages (from-to)3981-3984
Number of pages4
JournalPhysical Review Letters
Issue number25
StatePublished - 1994
Externally publishedYes


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