skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Measurements of the nucleon form factors at large momentum transfers

Technical Report ·
DOI:https://doi.org/10.2172/10122483· OSTI ID:10122483
; ; ; ; ; ; ; ;  [1]; ;  [2]; ;  [3];  [4];  [5]; ;  [6];  [7];  [8]; more »; ; ;  [9]; ;  [10]; ;  [11] « less
  1. American Univ., Washington, DC (United States)
  2. Lawrence Livermore National Lab., CA (United States)
  3. Tel Aviv Univ. (Israel)
  4. Maryland Univ., College Park, MD (United States)
  5. National Bureau of Standards, Gaithersburg, MD (United States)
  6. Stanford Univ., CA (United States)
  7. Continuous Electron Beam Accelerator Facility, Newport News, VA (United States)
  8. Pennsylvania Univ., Philadelphia, PA (United States)
  9. Massachusetts Univ., Amherst, MA (United States)
  10. Washington Univ., Seattle, WA (United States)
  11. Rochester Univ., NY (United States)
+ Show Author Affiliations

New measurements of the electric G{sub E}(Q{sup 2}) and magnetic G{sub M}(Q{sup 2}) form factors of the nucleons are reported. The proton data cover the Q{sup 2} range from 1.75 to 8.83 (GeV/c){sup 2} and the neutron data from 1.75 to 4.00 (GeV/c){sup 2}, more than doubling the range of previous data. Scaled by the dipole fit, G{sub D}(Q{sup 2}), the results for G{sub Mp}(Q{sup 2})/{mu}{sub p}G{sub D}(Q{sup 2}) decrease smoothly from 1.05 to 0.92, while G{sub Ep}(Q{sup 2})/G{sub D}(Q{sup 2}) is consistent with unity. The preliminary results for Gm.(Q2)1 GD(Q2) consistent with unity, while F{sub En}{sup 2} is consistent with zero at all values of Q{sup 2}. Comparisons are made to QCD Sum Rule, diquark, constituent quark, and VMD models, none of which agree with all of the new data.

Research Organization:
Stanford Linear Accelerator Center, Menlo Park, CA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
DOE Contract Number:
AC03-76SF00515; W-7405-ENG-48; FG02-88ER40415; AC02-76ER13065; FG06-90ER40537
OSTI ID:
10122483
Report Number(s):
SLAC-PUB-5867; UR-1277; CONF-920708-6; ON: DE93006931; CNN: Grant PHY-87-15050; Grant PHY-89-18491; Grant PHY-88-19259; Grant PHY-86-58127
Resource Relation:
Conference: 2. international nuclear physics conference,Wiesbaden (Germany),26 Jul - 1 Aug 1992; Other Information: PBD: Dec 1992
Country of Publication:
United States
Language:
English

Similar Records

Measurements of the nucleon form factors at large momentum transfers
Conference · Tue Dec 01 00:00:00 EST 1992 · OSTI ID:10122483
+12 more
Measurements of the electric and magnetic form factors of the proton from Q sup 2 =1. 75 to 8. 83 (GeV/ c ) sup 2
Journal Article · Mon Jun 29 00:00:00 EDT 1992 · Physical Review Letters; (United States) · OSTI ID:10122483
+24 more
A Precise Measurement of the Proton Elastic Form Factors for 1.75 <= Q**2 <= 8.83 (GeV/c)**2
Technical Report · Wed Jun 02 00:00:00 EDT 2004 · OSTI ID:10122483

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
NUCLEONS
ELECTROMAGNETIC FORM FACTORS
MOMENTUM TRANSFER
MEASURING METHODS
QUANTUM CHROMODYNAMICS
SUM RULES
EXPERIMENTAL DATA
662410
PROPERTIES OF BARYONS AND BARYON RESONANCES