Hadron structure at small momentum transfer

Abstract

Giving three examples, the form factors of the nucleon, the polarisability of the charged pion and the interference of the $S_{11}(1535)$ with the $D_{13}(1520)$ excitation of the nucleon in the $\eta p$-decay channel, it is argued that the hadron structure at low momentum transfer is highly significant for studying QCD.

7 pages, 9 figures. Contribution to the International School of Nuclear Physics, 29th Ccourse, "Quarks in Hadrons and Nuclei", Erice, Sicily, 16 - 24 September 2007

References in corpus (12)

• SU(3) Chiral Dynamics with Coupled Channels: Eta and Kaon Photoproduction
• Dispersion analysis of the nucleon form factors including meson continua
• A Coherent Interpretation of the Form Factors of the Nucleon in Terms of a Pion Cloud and Constituent Quarks
• An isobar model for eta photo- and electroproduction on the nucleon
• Revisiting γγ->π^+π^- at low energies
• Measurement of the pi^+ meson polarizabilities via the gamma p->gamma pi^+ n reaction
• Analysis of resonance multipoles from polarization observables in eta photoproduction
• Hadron structure at low Q^2
• Determination of ${\pi }^{+}-$ meson polarizabilities from the $\gamma \gamma ->{\pi }^{+}{\pi }^{-}$ process
• The Pion Cloud of the Nucleon: Facts and popular Fantasies
• Recoil polarization and beam-recoil double polarization measurement of ηelectroproduction on the proton in the region of the S_{11}(1535) resonance
• Pion polarisabilities and bremsstrahlung

Cited by in corpus (2)

• Dipole polarizabilities of charged pions
• Dipole Polarizabilities of ${\pi }^{\pm }$-Mesons