G{sub E{sub p}}/G{sub M{sub p}} ratio by polarization transfer in e --> p --> ep -->
Journal Article
·
· Physical Review Letters
OSTI ID:828185
The ratio of the proton's elastic electromagnetic form factors, G{sub E{sub p}}/G{sub M{sub p}} was obtained by measuring P{sub i} and P{sub l}, the transverse and the longitudinal recoil proton polarization, respectively. For elastic ep to ep, G{sub E{sub p}}/G{sub M{sub p}} is proportional to P{sub t}/P{sub l}. Simultaneous measurement of P{sub t} and P{sub l} in a polarimeter provides good control of the systematic uncertainty. The results for the ratio G{sub E{sub p}}/G{sub M{sub p}} show a systematic decrease as Q{sup 2} increases from 0.5 to 3.5 GeV{sup 2}, indicating for the first time a definite difference in the spatial distribution of charge and magnetization currents in the proton.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 828185
- Report Number(s):
- JLAB-PHY-00-71; DOE/ER/40150-2846; nucl-ex/9910005; PRLTAO; TRN: US0404490
- Journal Information:
- Physical Review Letters, Vol. 84, Issue 7; Other Information: PBD: 14 Feb 2000; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
Similar Records
G{sub E{sub p}}/G{sub M{sub p}} Ratio by Polarization Transfer in e(vector sign)p {yields} ep(vector sign)
Ratio by Polarization Transfer in
Measurements of the elastic electromagnetic form factor ratio via polarization transfer
Journal Article
·
Mon Feb 14 00:00:00 EST 2000
· Physical Review Letters
·
OSTI ID:828185
+7 more
Ratio by Polarization Transfer in
Journal Article
·
Tue Feb 01 00:00:00 EST 2000
· Physical Review Letters
·
OSTI ID:828185
+105 more
Measurements of the elastic electromagnetic form factor ratio via polarization transfer
Journal Article
·
Wed Aug 01 00:00:00 EDT 2001
· Physical Review. C, Nuclear Physics
·
OSTI ID:828185
+75 more