Form factors and other measures of strangeness in the nucleon

Abstract

We discuss the phenomenology of strange-quark dynamics in the nucleon, based on experimental and theoretical results for electroweak form factors and for parton densities. In particular, we construct a model for the generalized parton distribution that relates the asymmetry s(x)-sbar(x) between the longitudinal momentum distributions of strange quarks and antiquarks with the form factor F1^s(t), which describes the distribution of strangeness in transverse position space.

(22 pages, 19 figures, minor corrections, matches journal version)

References in corpus (16)

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• Update of Parton Distributions at NNLO
• Precision Measurements of the Nucleon Strange Form Factors at Q^2 ~0.1 GeV^2
• Extracting nucleon strange and anapole form factors from world data
• Longitudinal Polarized Parton Densities Updated
• Strange Electric Form Factor of the Proton
• Testing the Standard Model by precision measurement of the weak charges of quarks
• The Polarised Valence Quark Distribution from semi-inclusive DIS
• The Strange Parton Distribution of the Nucleon: Global Analysis and Applications
• Fixed target Drell-Yan data and NNLO QCD fits of parton distribution functions
• Determination of polarized parton distribution functions with recent data on polarization asymmetries
• The Two-Photon-Exchange and γZ-Exchange Corrections to parity-Violating Elastic Electron-Proton Scattering
• Some numerical studies of the evolution of generalized parton distributions
• Effect of two-boson exchange on parity-violating e-p scattering
• Strange form factors and Chiral Perturbation Theory
• On the s-sbar asymmetry of the nucleon sea

Cited by in corpus (16)

• Transversity in hard exclusive electroproduction of pseudoscalar mesons
• Flavor decomposition of the elastic nucleon electromagnetic form factors
• Nucleon form factors, generalized parton distributions and quark angular momentum
• Constraining quark angular momentum through semi-inclusive measurements
• The Role of Nucleon Strangeness in Supernova Explosions
• Constraining nucleon strangeness
• Nucleon axial form factor from generalized parton distributions
• Realizing vector meson dominance with transverse charge densities
• Determination of generalized parton distributions through a simultaneous analysis of axial form factor and wide-angle Compton scattering data
• Perturbative and nonperturbative contributions to the strange quark asymmetry in the nucleon
• Nucleon strange $s\bar{s}$ asymmetry to the $\Lambda /\bar{\Lambda }$ fragmentation
• Spin-polarized high-energy scattering of charged leptons on nucleons
• Nucleon strangeness polarization from $\Lambda /\bar{\Lambda }$ hyperon production in polarized proton-proton collision at RHIC
• phi-meson production in proton-antiproton annihilation
• Role of pentaquark components in $\varphi$ meson production proton-antiproton annihilation reactions
• Quark-antiquark asymmetry of helicity distributions in the nucleon sea