منابع مشابه
Strange form factors and Chiral Perturbation Theory
We review the contributions of Chiral Perturbation Theory to the theoretical understanding or not-quite-yet-understanding of the nucleon matrix elements of the strange vector current. PACS. 12.39.Fe Chiral Lagrangians – 14.20.Dh Protons and neutrons
متن کاملStrange Form Factors in Neutrino Scattering
The determination of the strange quark contribution to the nucleonic axial and vector weak currents has raised large and continuous interest in theoretical and experimental physics, especially after the measurements of the polarised structure function g 1 of the proton, which indicated a non–zero contribution of the strange quark to the proton spin. In recent years, intermediate energy physics ...
متن کاملElectroweak form factors of non-strange baryons
Abstract. We compute electroweak form factors of the nucleon and photon transition form factors of nonstrange baryon resonances up to the third resonance region in a model with instanton-induced interaction. The calculation is based on the Bethe-Salpeter equation for three light constituent quarks and is fully relativistic (U. Löring et al., Eur. Phys. J. A10, 309 (2001)). Static nucleon proper...
متن کاملDetermination of the strange nucleon form factors.
The strange contribution to the electric and magnetic form factors of the nucleon is determined at a range of discrete values of Q^{2} up to 1.4 GeV^{2}. This is done by combining a recent analysis of lattice QCD results for the electromagnetic form factors of the octet baryons with experimental determinations of those quantities. The most precise result is a small negative value for the stran...
متن کاملExtracting nucleon strange and anapole form factors from world data.
The complete world set of parity-violating electron scattering data up to Q2 approximately 0.3 GeV2 is analyzed. We extract the current experimental determination of the strange electric and magnetic form factors of the proton, as well as the weak axial form factors of the proton and neutron, at Q2=0.1 GeV2. Within experimental uncertainties, we find that the strange form factors are consistent...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1971
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp.46.1794