The European Physical Journal A

, Volume 32, Issue 4, pp 393–397 | Cite as

Strange nucleon form factors: Solitonic approach to GM s , GE s , \( \tilde{{G}}_{{A}}^{{p}}\) and \( \tilde{{G}}_{{A}}^{{n}}\) and comparison with world data

PAVI 2006

Abstract.

We summarize the results of the chiral quark-soliton model (χ QSM) concerning basically all form factors necessary to interpret the present data of the parity-violating electron scattering experiments SAMPLE, HAPPEX, A4 and G0. The results particularly focus on the recently measured asymmetries and the detailed data for various combinations of G M s , G E s , \( \tilde{{G}}_{{A}}^{{p}}\) and \( \tilde{{G}}_{{A}}^{{n}}\) at Q 2 = 0.1 GeV^2. The calculations yield positive strange magnetic and electric form factors and a negative axial vector one, all being rather small. The results are very close to the combined experimental world data from parity-violating electron scattering and elastic νp and ¯ scattering.

PACS.

12.40.-y Other models for strong interactions 14.20.Dh Protons and neutrons 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2007

Authors and Affiliations

  1. 1.Institut für Theoretische Physik IIRuhr-Universität BochumBochumGermany
  2. 2.Department of Physics and Nuclear Physics and Radiation Technology Institute (NuRI)Pusan National UniversityBusanRepublic of Korea
  3. 3.Departamento de Fısica and Centro de Fısica ComputacionalUniversidade de CoimbraCoimbraPortugal
  4. 4.Faculdade de Engenharia da Universidade do PortoPortoPortugal

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