Constraints on antisymmetric tensor fields from Bhabha scattering.

Area of Science:

• Theoretical Physics
• Particle Physics
• String Theory

Background:

• Antisymmetric tensor fields are a key prediction of string theory.
• These fields may couple to electromagnetic dipole moments, offering a potential discovery avenue for string theory.
• Electromagnetic dipole couplings are particularly sensitive to interactions with electrons.

Purpose of the Study:

• To investigate the potential for detecting antisymmetric tensor fields through their electromagnetic dipole couplings.
• To establish the strongest constraints on these couplings using experimental data.

Main Methods:

• Analysis of Møller and Bhabha scattering processes, which are sensitive to electromagnetic dipole couplings.
• Utilizing previous measurements of Bhabha scattering to derive constraints.

Main Results:

• Previous Bhabha scattering measurements impose constraints on the couplings.
• The constraints are expressed in terms of the antisymmetric tensor field mass and an effective mass scale for the dipole coupling.

Conclusions:

• Antisymmetric tensor fields represent a promising target for particle physics searches.
• Bhabha scattering experiments provide stringent limits on the electromagnetic dipole couplings associated with these fields, impacting string theory discovery potential.