skip to main content

DOE PAGESDOE PAGES

Title: First measurement of proton's charge form factor at very low Q 2 with initial state radiation

Here we report on a new experimental method based on initial-state radiation (ISR) in e–pscattering, which exploits the radiative tail of the elastic peak to study the properties of electromagnetic processes and to extract the proton charge form factor (G$$p\atop{E}$$) at extremely small Q 2. The ISR technique was implemented in an experiment at the three-spectrometer facility of the Mainz Microtron (MAMI). This led to a precise validation of radiative corrections far away from elastic line and provided first measurements of G$$p\atop{E}$$ for 0.001 ≤Q 2≤0.004 (GeV/c) 2.
Authors:
 [1] ;  [2] ;  [2] ;  [2] ;  [3] ;  [4] ;  [2] ;  [5] ;  [2] ;  [6] ;  [3] ;  [2] ;  [2] ;  [2] ;  [2] ;  [6] ;  [7] ;  [5] ;  [8] ;  [2] more »;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [9] ;  [3] ;  [2] ;  [2] ;  [2] ;  [2] « less
  1. Johannes Gutenberg-Univ., Mainz (Germany). Inst. fur Kernphysik; Jozef Stefan Inst., Ljubljana (Slovenia)
  2. Johannes Gutenberg-Univ., Mainz (Germany). Inst. fur Kernphysik
  3. Jozef Stefan Inst., Ljubljana (Slovenia)
  4. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  5. Univ. of Zagreb, Zagreb (Croatia). Dept. of Physics
  6. Universite Clermont Auvergne (UCA), Clermont-Ferrand, (France)
  7. Technische Univ. of Munich (Germany). Dept. of Physics
  8. College of William and Mary, Williamsburg, VA (United States)
  9. Univ. of Ljubljana, Ljubljana (Slovenia). Faculty of Mathematics and Physics; Jozef Stefan Inst., Ljubljana (Slovenia)
Publication Date:
Grant/Contract Number:
FG02-96ER41003
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 771; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
College of William and Mary, Williamsburg, VA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Initial state radiation; Proton; Form factor; Radiative corrections
OSTI Identifier:
1356864
Alternate Identifier(s):
OSTI ID: 1425606