Speaker
Description
Coherent Elastic neutrino Nucleus Scattering at spallation sources such as the ESS, offer new exciting possibilities to also study physics beyond the standard model in a small scale experiment. There is an ongoing effort att Lund and Uppsala universities to explore these possibilities in more detail. As an example, I will describe the possibility to search for the X17 - a hypothetical light Z´-boson that, for example can explain observations in Be8* -> Be8 decays first observed by the ATOMKI experiment. I will present how the X17 would modify the nuclear recoil spectrum and discuss the prospects for confirming its existence in an experiment at the ESS using a germanium detector.
Work done in collaboration with Joakim Cederkäll, Yasar Hicyilmaz, Else Lytken, Stefano Moretti
