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

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...

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Bibliographic Details
Published in:The journal of high energy physics 2023-01, Vol.2023 (1), p.117-19, Article 117
Main Authors: Huang, Da, Tang, Yong, Wu, Yue-Liang
Format: Article
Language:English
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
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Summary: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.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP01(2023)117