A model of a transition neutral pion formfactor measured in annihilation and scattering channels

TL;DR

This paper proposes a novel explanation for the observed increase in the neutral pion transition form factor at high virtuality, using Sudakov suppression effects, and explores implications for scattering and annihilation experiments.

Contribution

It introduces a new model based on Sudakov suppression to explain the form factor growth, extending its application to various scattering and annihilation processes.

Findings

Sudakov suppression can account for the form factor growth

Application to lepton-proton scattering experiments

Provides an alternative to existing explanations

Abstract

We consider an alternative explanation of newly found growth of neutral pion transition form factor with virtuality of one of photon. It is based on Sudakov suppression of quark-photon vertex. Some applications to scattering and annihilation channels are considered including the relevant experiments with lepton-proton scattering.