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

• Published in: The journal of high energy physics Vol. 2023; no. 1; pp. 117 - 19
• Main Authors: Huang, Da, Tang, Yong, Wu, Yue-Liang
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 20.01.2023; Springer Nature B.V; SpringerOpen
• Subjects: Classical and Quantum Gravitation; Conventions; Dipole moments; Elementary Particles; Feynman diagrams; Field theory; Helicity; High energy physics; Muons; Other Weak Scale BSM Models; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Regular Article - Theoretical Physics; Relativity Theory; Spacetime; Specific BSM Phenomenology; String Theory; Symmetry; Theoretical physics; Theories of Flavour; Theories of Flavour; Other Weak Scale BSM Models; Specific BSM Phenomenology
• ISSN: 1029-8479; 1029-8479
• DOI: 10.1007/JHEP01(2023)117

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