Münster 2011 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 11: Hadronenstruktur und -spektroskopie III

HK 11.1: Group Report

Monday, March 21, 2011, 16:30–17:00, C-2

Chiral perturbation theory in the single-baryon sector — Tim Ledwig, •Vladimir Pascalutsa, and Marc Vanderhaeghen — Institut für Kernphysik, Johannes Gutenberg Universität, Mainz D-55099, Germany

A brief account of baryon chiral perturbation theory (BChPT) will be given with emphasis on the issues of consistent power-counting and convergence. Several recent calculations in the single baryon sector will be presented and confronted with lattice QCD results and/or experimental data. Special attention is paid to a new BChPT calculation of Compton scattering off protons which questions the current PDG values of proton polarizabilities.