Nuclear matter andνproperties fromπinduced reactions and decays

Abstract

Abstract. Measurement of the in-medium modifications of the ∆ resonance, signatures of the excitation of nuclear collective states and the first experimental evidence for a thermal emission of photons have been obtained from the analysis of new π ± 4 He data at T π =106 MeV at PAINUC with the PAINUC experiment at JINR. Experimental limits on the direct measurement of the muon neutrino mass is also being studied: the pion mass resolution, at present 350 eV, heavily constrains the accessible m ν sector above 419 keV/c 2 .