Contributions to the muon g − 2 from a three-form field

We examine contributions to the muon dipole moment $g-2$ from a 3-form field $\Omega$, which naturally arises many fundamental theories, such as string theory and hyperunified theory. In particular, by calculating one-loop Feynman diagram, we have obtained leading-order $\Omega$-induced contribution $g-2$, is found be finite. Then investigate theoretical constraints perturbativity unitarity. Especially, unitarity bounds are yielded computing tree-level $\mu^+\mu^-$ scattering amplitudes of various initial final helicity configurations. As result, despite strong imposed on this model still substantial parameter space can accommodates data.