Constraints on Hidden Photon Models from Electron g-2 and Hydrogen Spectroscopy

TL;DR

This paper refines constraints on hidden photon models using electron g-2 and hydrogen spectroscopy, significantly tightening previous bounds and improving the understanding of dark photon contributions.

Contribution

It provides a more stringent analysis of experimental constraints on hidden photon models by carefully considering dark photon effects in electron g-2 and hydrogen spectroscopy.

Findings

New constraints are over ten times more restrictive than previous results.

Careful parameter setting ensures self-consistent analysis of dark photon effects.

Enhanced bounds help narrow the viable parameter space for hidden photon models.

Abstract

The hidden photon model is one of the simplest models which can explain the anomaly of the muon anomalous magnetic moment (g-2). The experimental constraints are studied in detail, which come from the electron g-2 and the hydrogen transition frequencies. The input parameters are set carefully in order to take dark photon contributions into account and to prevent the analysis from being self-inconsistent. It is shown that the new analysis provides a constraint severer by more than one order of magnitude than the previous result.