Electromagnetic form factors of the Delta with D-waves

TL;DR

This paper calculates the electromagnetic form factors of the Delta baryon using a covariant spectator quark model that includes S and D wave states, providing predictions consistent with experimental and lattice QCD data.

Contribution

It introduces a covariant spectator quark model with D-waves for the Delta baryon, offering comprehensive predictions of all four multipole form factors.

Findings

Predicted all four Delta multipole form factors.

Results agree with experimental data.

Results agree with recent lattice QCD data.

Abstract

The electromagnetic form factors of the Delta baryon are evaluated within the framework of a covariant spectator quark model, where S and D-states are included in the $\Delta$ wave function. We predict all the four Delta multipole form factors: the electric charge GE0, the magnetic dipole GM1, the electric quadrupole GE2 and the magnetic octupole GM3. We compare our predictions with other theoretical calculations. Our results are compatible with the available experimental data and recent lattice QCD data.