Parity-violating aysmmetries in elastic $\vec{e}p$ scattering in the chiral quark-soliton model: Comparison with A4, G0, HAPPEX and SAMPLE

Abstract

We investigate parity-violating electroweak asymmetries in the elastic scattering of polarized electrons off protons within the framework of the chiral quark-soliton model ($\chi$QSM). We use as input the former results of the electromagnetic and strange form factors and newly calculated SU(3) axial-vector form factors, all evaluated with the same set of four parameters adjusted several years ago to general mesonic and baryonic properties. Based on this scheme, which yields positive electric and magnetic strange form factors with a ${\mu }_s=(0.08-0.13){\mu }_N$, we determine the parity-violating asymmetries of elastic polarized electron-proton scattering. The results are in a good agreement with the data of the A4, HAPPEX, and SAMPLE experiments and reproduce the full $Q^2$-range of the G0-data. We also predict the parity-violating asymmetries for the backward G0 experiment.

arXiv comment11 pages, 11 figures

References in corpus (35)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• Hard Exclusive Reactions and the Structure of Hadrons
• Exotic Anti-Decuplet of Baryons: Prediction from Chiral Solitons
• Baryons as non-topological chiral solitons
• Intermediate-Energy Semileptonic Probes of the Hadronic Neutral Current
• Strange Quark Contributions to Parity-Violating Asymmetries in the Forward G0 Electron-Proton Scattering Experiment
• Nucleon Parton Distributions at Low Normalization Point in the Large N_c Limit
• Measurement of Strange Quark Contributions to the Nucleon's Form Factors at Q^2=0.230 (GeV/c)^2
• Baryons as Chiral Solitons in the Nambu--Jona-Lasinio Model
• The Strange Quark Contribution to the Proton's Magnetic Moment
• Parity-violating electroweak asymmetry in $\vec{e}p$ scattering
• Evidence for Strange Quark Contributions to the Nucleon's Form Factors at $Q^2$ = 0.108 (GeV/c)${}^2$
• Off-forward quark distributions of the nucleon in the large N_c limit
• Measurement of the Proton's Neutral Weak Magnetic Form Factor
• Parity-Violating Electron Scattering from 4He and the Strange Electric Form Factor of the Nucleon
• Precise determination of the strangeness magnetic moment of the nucleon
• Constraints on the Nucleon Strange Form Factors at Q^2 ~ 0.1 GeV^2
• The Nucleon Anapole Moment and Parity-Violating ep Scattering
• Parity Violation in Elastic Electron-Proton Scattering and the Proton's Strange Magnetic Form Factor
• The SAMPLE Experiment and Weak Nucleon Structure
• New Measurement of Parity Violation in Elastic Electron-Proton Scattering and Implications for Strange Form Factors
• Strangeness in the nucleon: neutrino-nucleon and polarized electron-nucleon scattering
• Strange Electric Form Factor of the Proton
• Parity-Violating Electron Scattering and Neucleon Structure
• The nucleon's strange electromagnetic and scalar matrix elements
• Nucleon Structure and Parity-Violating Electron Scattering
• Strange form factors in the context of SAMPLE, HAPPEX, and A4 experiments
• Symmetry conserving approach to the quantization of the non-topological SU(3) soliton
• Axial-vector form factors of the nucleon within the chiral quark-soliton model and their strange components
• Strange and singlet form factors of the nucleon: Predictions for G0, A4, and HAPPEX-II experiments
• Pion mass dependence of the nucleon mass in the chiral quark soliton model
• Systematic uncertainties in the precise determination of the strangeness magnetic moment of the nucleon
• Parity-Violation With Electrons: Theoretical Perspectives

Cited by in corpus (16)

• Measurement of Strange Quark Contributions to the Vector Form Factors of the Proton at Q**2=0.22 (GeV/c)**2
• Nucleon strangeness form factors from N_f=2+1 clover fermion lattice QCD
• The pion mass dependence of the nucleon form-factors of the energy momentum tensor in the chiral quark-soliton model
• Strange Quark Contribution to the Vector and Axial Form Factors of the Nucleon: Combined Analysis of G0, HAPPEx, and Brookhaven E734 Data
• Nucleon strange electromagnetic form factors
• Tensor charges and form factors of SU(3) baryons in the self-consistent SU(3) chiral quark-soliton model
• Electromagnetic properties of the Delta(1232) and decuplet baryons in the self-consistent SU(3) chiral quark-soliton model
• Two-component model for the axial form factor of the nucleon
• Electromagnetic form factors of the baryon decuplet with flavor SU(3) symmetry breaking
• Ambiguities of neutrino(antineutrino) scattering on the nucleon due to the uncertainties of relevant strangeness form factors
• Axial-vector transitions and strong decays of the baryon antidecuplet in the self-consistent SU(3) chiral quark-soliton model
• Strange nucleon form factors: Solitonic approach to $G_M^s$, $G_E^s$, ${\tilde{G}}_A^p$ and ${\tilde{G}}_A^n$ and comparison with world data
• Vector transition form factors of the $N{K}^{\ast }\to {\Theta }^{+}$ and $N{\bar{K}}^{\ast }\to {\Sigma }_{\overline{10}}^{\ast -}$ in the SU(3) chiral quark-soliton model
• Axial-vector transition form factors of the baryon octet to the baryon decuplet with flavor SU(3) symmetry breaking
• Flavour structure of the nucleon electromagnetic form factors and transverse charge densities in the chiral quark-soliton model
• Structure of the $\Omega$ baryon and the kaon cloud