Electromagnetic form factors of the nucleon: New fit and analysis of uncertainties

Journal Article · Mon Jun 15 00:00:00 EDT 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.79.065204· OSTI ID:21289945

Alberico, W M; Giunti, C ^[1]; Bilenky, S M ^[2]; Graczyk, K M ^[1]

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1. Dipartimento di Fisica Teorica, Universita di Torino and INFN, Sezione di Torino, I-10125 Torino (Italy)
2. BLTP, JINR, RU-141980 Dubna (Russian Federation)

Electromagnetic form factors of proton and neutron, obtained from a new fit of data, are presented. The proton form factors are obtained from a simultaneous fit to the ratio {mu}{sub p}G{sub Ep}/G{sub Mp} determined from polarization transfer measurements and to ep elastic cross section data. Phenomenological two-photon exchange corrections are taken into account. The present fit for protons was performed in the kinematical region Q{sup 2} is an element of (0,6) GeV{sup 2}. For both protons and neutrons we use the latest available data. For all form factors, the uncertainties and correlations of form factor parameters are investigated with the {chi}{sup 2} method.

• OSTI ID: 21289945
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 79, Issue 6; Other Information: DOI: 10.1103/PhysRevC.79.065204; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CORRECTIONS
CORRELATIONS
CROSS SECTIONS
ELASTIC SCATTERING
ELECTROMAGNETIC FORM FACTORS
NEUTRONS
PHOTONS
POLARIZATION
PROTONS