Pion transition form factor: interplay of hard and soft limits
| dc.creator | Dorokhov, A. E. | |
| dc.date | 2002-06-10 | |
| dc.date | 2002-06-15 | |
| dc.date.accessioned | 2026-07-07T03:47:14Z | |
| dc.date.available | 2026-07-07T03:47:14Z | |
| dc.description | The behaviour of the pion transition form factor for the process $γ^\starγ\to π^0$ and $γ^\starγ^\star\to π^0$ at space-like values of photon momenta is estimated within the nonlocal covariant quark-meson model. The nonlocal contributions are important to install the axial anomaly at zero photon virtualities and give the contributions to the twist-4 power correction to the form factor at large virtualities. The leading and next-to-leading order power asymptotics of the form factor and the relation between the light-cone pion distribution amplitudes and the dynamically generated quark mass function are found. | |
| dc.description | 4 pages, 2 figures, Latex; Talk given at XXXVII Recontres de Moriond on QCD and Hadron Interaction, Les Arcs, France, 16-23 Mar. 2002 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0206088 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0206088 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/41587 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Pion transition form factor: interplay of hard and soft limits | |
| dc.type | text |