Pion Electromagnetic Form Factor at Lower and Higher Momentum Transfer

TL;DR

This paper calculates the pion electromagnetic form factor across various momentum transfers using a light-front constituent quark model, comparing results with other models and experimental data to explore quark model differences.

Contribution

It applies the light-front constituent quark model to compute the pion form factor at different energies and compares with existing models and data.

Findings

The form factor calculations agree with experimental data at various energies.

Differences among quark models are highlighted through comparison.

The light-front approach provides consistent results across momentum transfers.

Abstract

The pion electromagnetic form factor is calculated at lower and higher momentum transfer in order to explore constituent quark models and the differences among those models. In particular, the light-front constituent quark model is utilized here to calculate the pion electromagnetic form factor at lower and higher energies. The matrix elements of the electromagnetic current, are calculated with both "plus" and "minus" components of the electromagnetic current in the light-front. Further, the electromagnetic form factor is compared with other models in the literature and experimental data.