This title appears in the Scientific Report :
2014
Please use the identifier:
http://dx.doi.org/10.1016/j.nima.2014.05.058 in citations.
New experimental upper limit of the electron-proton spin-flip cross section
New experimental upper limit of the electron-proton spin-flip cross section
In a previous publication, measurements of the depolarization of a stored proton beam by interaction with a co-propagating unpolarized electron beam at low relative energy have been presented and an upper limit of about 3 ×107 b for the electron–proton spin-flip cross-section was determined. A refin...
Saved in:
In a previous publication, measurements of the depolarization of a stored proton beam by interaction with a co-propagating unpolarized electron beam at low relative energy have been presented and an upper limit of about 3 ×107 b for the electron–proton spin-flip cross-section was determined. A refined analysis presented in this paper reduces the previous upper limit by a factor of three by the introduction of a new procedure that also makes use of non-identified particles. |