22-28 July 2010
Palais des Congrès de Paris
Europe/Paris timezone

Axial Anomaly and Transition Formfactors

23 Jul 2010, 14:55
8m
Salle 253 ()

Salle 253

Parallel Session Talk 04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy 04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Speaker

Oleg Teryaev (Joint Inst. for Nuclear Research (JINR))

Description

The earlier derived sum rule for the axial current formfactors with one real and one virtual photon is applied for the analysis of meson transition formfactors. The exactness of sum rule at all virtual photon momenta due to t'Hooft principle requires the existence of at least one axial meson which assumes the role of pion in the anomaly description at large momenta squared. The relation between pion and A1 meson formfactors is obtained and applied to the analysis of BABAR data. The possible manifestations of axial anomaly in heavy ions collisions are briefly discussed,

Primary author

Oleg Teryaev (Joint Inst. for Nuclear Research (JINR))

Co-authors

Presentation Materials