Parity violation in elastic electron-proton scattering and the proton's strange magnetic form factor

We report a new measurement of the parity-violating asymmetry in elastic electron scattering from the proton at backward scattering angles. This asymmetry is sensitive to the strange magnetic form factor of the proton as well as electroweak axial radiative corrections. The new measurement of A = -4.92 +/- 0.61 +/- 0.73 ppm provides a significant constraint on these quantities. The implications for the strange magnetic form factor are discussed in the context of theoretical estimates for the axial corrections.


Published in:
PHYSICAL REVIEW LETTERS, 84, 6, 1106-1109
Year:
2000
Keywords:
Laboratories:




 Record created 2008-11-07, last modified 2018-03-17

n/a:
Download fulltext
PDF

Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)