Electroweak form factors of large nuclei as BPS skyrmions

TL;DR

This paper uses the BPS Skyrme model with semi-classical quantization to accurately compute electromagnetic and neutral current form factors of heavy nuclei, offering a new analytic approach relevant for precision neutrino experiments.

Contribution

It introduces an analytic expression for neutral current form factors of nuclei within the BPS Skyrme model, providing an alternative to phenomenological methods.

Findings

Excellent agreement with experimental data at low to moderate momentum transfer.

Derived a general power series expression for neutral current form factors.

Offers a model-based approach for systematic control in neutrino physics.

Abstract

We employ the Bogomolnyi-Prasad-Sommerfield (BPS) Skyrme model within the framework of semi-classical quantization to compute both electromagnetic and neutral current form factors for heavy nuclei. Our results show excellent agreement with the experimental data for low- to moderate momentum transfer. Further, we present an analytic expression of the neutral current form factor for generic nuclei, expressed as a power series in the momentum transfer. Our method provides an alternative to existing phenomenological approaches, and is particularly relevant for precision neutrino experiments where control over model-dependent systematics is essential for probing physics beyond the Standard Model.