Speaker
Patrick Foldenauer
Description
We explore the full constraining power of experimental bounds derived for hidden photons by applying them to gauge bosons of a weakly coupled $U(1)_{B-L}$, $U(1)_{L_\mu-L_\tau}$, $U(1)_{L_\mu-L_e}$ and $U(1)_{L_\tau-L_e}$. The associated gauge bosons of these anomaly-free groups are well-motivated mediators to a dark sector. In contrast to a hidden photon that acquires universal couplings to charged SM particles through kinetic mixing with the photon, several SM particles are uncharged under these gauge groups. Also taking into account loop-induced kinetic mixing the hidden photon bounds are drastically altered for the different gauge groups. We also discuss cosmological constraints and the sensitivity of future experiments.
Primary author
Patrick Foldenauer
Co-authors
Martin Bauer
(Heidelberg University)
Joerg Jaeckel
(ITP Heidelberg)
