Electromagnetic form factors of the Delta with D-waves

Details Electromagnetic form factors of the Delta with D-waves Electromagnetic form factors of the Delta with D-waves

2010-02-22

arxiv.org/abs/1002.4170v2

Phys. Rev. D 81, 113011 (2010)

Physics

High Energy Physics

High Energy Physics - Phenomenology

Accepted for publication in PRD. Version with typographic and orthographic corrections. 30 pages, 11 figures

Scientific paper

10.1103/PhysRevD.81.113011

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.

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