Novel constraints on neutrino physics beyond the standard model from the CONUS experiment

A bstract The measurements of coherent elastic neutrino-nucleus scattering (CE ν NS) experiments have opened up the possibility to constrain neutrino physics beyond standard model elementary particle physics. Furthermore, by considering neutrino-electron in keV-energy region, it is possible set additional limits on new processes. Here, we present constraints that are derived from Conus germanium data (BSM) processes like tensor and vector non-standard interactions (NSIs) neutrino-quark sector, as well light scalar mediators. Thanks realized low background levels C onus experiment at ionization energies below 1 keV, able world’s best NSIs CE NS scale corresponding lie above 360 GeV. For NSIs, strongly depend assumed quenching factor within detector material, since small factors largely suppress potential signals for both, expected process NSIs. competitive mediators obtained channel reactor-site which allow probe coupling constants 5 ∙ 10 − mediator masses, assuming currently favored regime. consideration scatterings allows even stronger masses ∼ MeV mediators, respectively.