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Measurements of the elastic electromagnetic form factor ratio μ_pG_(Ep)/G_(Mp) via polarization transfer

Gayou, O. and Gao, J. and Jones, C. (2001) Measurements of the elastic electromagnetic form factor ratio μ_pG_(Ep)/G_(Mp) via polarization transfer. Physical Review C, 64 (3). Art. No. 038202. ISSN 0556-2813. https://resolver.caltech.edu/CaltechAUTHORS:20140206-103338224

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Abstract

We present measurements of the ratio of the proton elastic electromagnetic form factors, μ_pG_(Ep)/G_(Mp). The Jefferson Lab Hall A Focal Plane Polarimeter was used to determine the longitudinal and transverse components of the recoil proton polarization in ep elastic scattering; the ratio of these polarization components is proportional to the ratio of the two form factors. These data reproduce the observation of Jones et al. [Phys. Rev. Lett. 84, 1398 (2000)], that the form factor ratio decreases significantly from unity above Q^2=1 GeV^2.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevC.64.038202DOIArticle
http://prc.aps.org/abstract/PRC/v64/i3/e038202PublisherArticle
http://link.aps.org/doi/10.1103/PhysRevC.64.038202PublisherArticle
Additional Information:© 2001 The American Physical Society. Received 29 May 2001; published 21 August 2001. The collaboration thanks the Hall A technical staff and the Jefferson Lab Accelerator Division for their outstanding support during this experiment. This work was supported by the U.S. Department of Energy, the U.S. National Science Foundation, the Natural Sciences and Engineering Research Council of Canada, the French Commissariat à l’Energie Atomique and Center National de la Recherche Scientifique, the Italian National Institute for Nuclear Physics, and the Swedish Natural Science Research Council. The Southeastern Universities Research Association (SURA) operates the Thomas Jefferson National Accelerator Facility for the U.S. Department of Energy under Contract No. DE-AC05- 84ER40150.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)UNSPECIFIED
NSFUNSPECIFIED
Natural Sciences and Engineering Research Council of CanadaUNSPECIFIED
French Commissariat a l’Energie AtomiqueUNSPECIFIED
Center National de la Recherche ScientifiqueUNSPECIFIED
Italian National Institute for Nuclear PhysicsUNSPECIFIED
Swedish Natural Science Research CouncilUNSPECIFIED
Department of Energy (DOE)DE-AC05-84ER40150
Issue or Number:3
Classification Code: PACS: 14.20.Dh, 13.40.Gp, 25.30.Bf, 24.70.+s
Record Number:CaltechAUTHORS:20140206-103338224
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140206-103338224
Official Citation:Measurements of the elastic electromagnetic form factor ratio μpGEp/GMp via polarization transfer O. Gayou et al. (The Jefferson Lab Hall A Collaboration) Published 21 August 2001 (4 pages) 038202
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:43696
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:06 Feb 2014 18:55
Last Modified:03 Oct 2019 06:10

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