6533b7dafe1ef96bd126ed50
RESEARCH PRODUCT
Model analysis of the world data on the pion transition form factor
Santiago NogueraVicente Ventosubject
PhysicsParticle physicsMatching (statistics)Nuclear and High Energy PhysicsScale (ratio)010308 nuclear & particles physicsFormalism (philosophy)Transition (fiction)HadronForm factor (quantum field theory)FOS: Physical sciences01 natural sciencesTerm (time)High Energy Physics - PhenomenologyTheoretical physicsHigh Energy Physics - Phenomenology (hep-ph)Pion0103 physical sciencesFísica nuclear010306 general physicsdescription
We discuss the impact of recent Belle data on our description of the pion transition form factor based on the assumption that a perturbative formalism and a nonperturbative one can be matched in a physically acceptable manner at a certain hadronic scale $Q_{0}$. We discuss the implications of the different parameters of the model in comparing with world data and conclude that within experimental errors our description remains valid. Thus we can assert that the low $Q^2$ nonperturbative description together with an additional $1/Q^2$ term at the matching scale have a strong influence on the $Q^2$ behavior up to very high values of $Q^2$ .
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-01-01 | The European Physical Journal A |