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Dresden 2013 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 2: Hadronenstruktur und -spektroskopie

HK 2.4: Talk

Monday, March 4, 2013, 12:00–12:15, HSZ-105

Pseudoscalar transition form factors at low and high energies — •Pere Masjuan — Institut für Kernphysik, Johannes Gutenberg Universtität Mainz

Pseudoscalar transition form factors are analyzed at low energies using the mathematical theory of Padé approximants. The theory provides a good and systematic description of the low-energy region in a model-independent way. At high energies, the form factor is described by the Pseudoscalar Distribution Amplitude. Considering different models for that Distribution Amplitude, both low- and high-energy regimes are match at some scale Q*. Using this description for the form factor, the impact on the hadronic light-by-light scattering contribution on the anomalous magnetic moment is also discussed.

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