GEp/GMp Ratio by Polarization Transfer in \vec{e}p→e\vec{p}
(2000) In Physical Review Letters 84(7). p.1398-1402- Abstract
- The ratio of the proton's elastic electromagnetic form factors, GEp/GMp, was obtained by measuring Pt and Pℓ, the transverse and the longitudinal recoil proton polarization, respectively. For elastic →ep→e→p, GEp/GMp is proportional to Pt/Pℓ. Simultaneous measurement of Pt and Pℓ in a polarimeter provides good control of the systematic uncertainty. The results for the ratio GEp/GMp show a systematic decrease as Q2 increases from 0.5 to 3.5GeV2, indicating for the first time a definite difference in the spatial distribution of charge and magnetization currents in the proton.
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https://lup.lub.lu.se/record/8530246a-ceba-412e-bed1-6efe457c896a
- author
- Jones, M. K. ; Fissum, Kevin LU and Zhou, Z. L.
- author collaboration
- organization
- publishing date
- 2000
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Letters
- volume
- 84
- issue
- 7
- pages
- 1398 - 1402
- publisher
- American Physical Society
- external identifiers
-
- scopus:18744436199
- ISSN
- 1079-7114
- DOI
- 10.1103/PhysRevLett.84.1398
- project
- Investigations of and with Polarized Electromagnetic Beams
- language
- English
- LU publication?
- yes
- id
- 8530246a-ceba-412e-bed1-6efe457c896a
- date added to LUP
- 2019-06-25 11:02:35
- date last changed
- 2022-04-26 02:22:44
@article{8530246a-ceba-412e-bed1-6efe457c896a, abstract = {{The ratio of the proton's elastic electromagnetic form factors, GEp/GMp, was obtained by measuring Pt and Pℓ, the transverse and the longitudinal recoil proton polarization, respectively. For elastic →ep→e→p, GEp/GMp is proportional to Pt/Pℓ. Simultaneous measurement of Pt and Pℓ in a polarimeter provides good control of the systematic uncertainty. The results for the ratio GEp/GMp show a systematic decrease as Q2 increases from 0.5 to 3.5GeV2, indicating for the first time a definite difference in the spatial distribution of charge and magnetization currents in the proton.}}, author = {{Jones, M. K. and Fissum, Kevin and Zhou, Z. L.}}, issn = {{1079-7114}}, language = {{eng}}, number = {{7}}, pages = {{1398--1402}}, publisher = {{American Physical Society}}, series = {{Physical Review Letters}}, title = {{GEp/GMp Ratio by Polarization Transfer in \vec{e}p→e\vec{p}}}, url = {{http://dx.doi.org/10.1103/PhysRevLett.84.1398}}, doi = {{10.1103/PhysRevLett.84.1398}}, volume = {{84}}, year = {{2000}}, }