A Scheme for Measuring the Neutrino Rest Mass from the P-Decay of Stored Tritium Atoms Using a Solenoid Retardation Spectrometer

Abstract should resolve the significant part of the spectrum ( 2) as well A new type ofelectron spectrometer is under construction at Mainz Univer-sity that allows a measurement of the p-spectrum of tritium with high resolution and transmission in order to detemrne the neutnno rest mass. I t consxsts of a source that contains atomlc tritium. t rappd In a high magnetic field. and a <olenoid retarding spxtrorneler. The question of a finite neutrino mass has penetrated in recent years almost any field of physics. It concerns the fundamental concepts of elementary particle physics as well as those of astrophysics. Much more spread, even, is the experimental interest in measuring the neutrino mass. The great number of differenr attempts may be grouped into two classes: (I) direct mass measurement from weak decay spec-as the final state effects. In experiments, using traditional magnetic spectrometers, the two latter problems are couple