Published February 7, 2000
| Version Published
Journal Article
Open
Parity Violation in Elastic Electron-Proton Scattering and the Proton's Strange Magnetic Form Factor
Creators
- Spayde, D. T.
- Averett, T.
- Barkhuff, D.
- Beck, D. H.
- Beise, E. J.
- Benson, C.
- Breuer, H.
- Carr, R.
- Covrig, S.
- DelCorso, J.
- Dodson, G.
- Dow, K.
- Eppstein, C.
- Farkhondeh, M.
-
Filippone, B. W.
- Frazier, P.
- Hasty, R.
-
Ito, T. M.
- Jones, C. E.
- Korsch, W.
- Kowalski, S.
- Lee, P.
- Maneva, E.
- McCarty, K.
- McKeown, R. D.
- Mikell, J.
- Mueller, B.
- Naik, P.
- Pitt, M.
- Ritter, J.
- Savu, V.
-
Sullivan, M.
- Tieulent, R.
- Tsentalovich, E.
- Wells, S. P.
- Yang, B.
- Zwart, T.
- SAMPLE Collaboration
Abstract
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.
Additional Information
© 2000 The American Physical Society. Received 15 September 1999. The skillful efforts of the staff of the MIT/Bates facility to provide high quality beam and improve the experiment are gratefully acknowledged. This work was supported by NSF Grants No. PHY-9420470 (Caltech), No. PHY-9420787 (Illinois), No. PHY-9457906/PHY-9971819 (Maryland), No. PHY-9733772 (VPI), and DOE Cooperative Agreement No. DE-FC02-94ER40818 (MITBates) and Contract No. W-31-109-ENG-38 (ANL).Attached Files
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Additional details
Identifiers
- Eprint ID
- 5727
- Resolver ID
- CaltechAUTHORS:SPAprl00
Funding
- NSF
- PHY-9420470
- NSF
- PHY-9420787
- NSF
- PHY-9457906
- NSF
- PHY-9971819
- NSF
- PHY-9733772
- Department of Energy (DOE)
- DE-FC02-94ER40818
- Department of Energy (DOE)
- W-31-109-ENG-38
Dates
- Created
-
2006-10-30Created from EPrint's datestamp field
- Updated
-
2021-11-08Created from EPrint's last_modified field