Regular Article - Theoretical Physics
Constraints on antisymmetric tensor fields from Bhabha scattering
Department of Physics and Engineering Physics, University of Saskatchewan, 116 Science Place, S7N 5E2, Saskatoon, SK, Canada
2 Department of Physics, Indian Institute of Technology Bombay, Powai, 400076, Mumbai, India
Accepted: 6 December 2021
Published online: 18 December 2021
Antisymmetric tensor fields are a compelling prediction of string theory. This makes them an interesting target for particle physics because antisymmetric tensors may couple to electromagnetic dipole moments, thus opening a possible discovery opportunity for string theory. The strongest constraints on electromagnetic dipole couplings would arise from couplings to electrons, where these couplings would contribute to Møller and Bhabha scattering. Previous measurements of Bhabha scattering constrain the couplings to , where is the mass of the antisymmetric tensor field and is an effective mass scale appearing in the electromagnetic dipole coupling.
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