Possibility of rare decay Ke2 measurement by the FINUDA detector Original Research Article

The FINUDA (FIsica NUcleare at DAfne) experiment will be operational at DAfNE, the new f Factory of the INFN Laboratory of Frascati, at the end of 2000. The main physics goals of the experiment are: fine spectroscopy of Λ- hypernuclei, study of non mesonic decay of hypernuclei and search for neutron rich hypernuclei. With the designed luminosity of 5·1032 FINUDA will collect a very abundant statistics of hypernuclear events and a high statistics of K+ decays into Kμ2 and Ke2 following the relative branching ratios. So, in principle, with the FINUDA Detector itʹs possible to measure the branching ratio View the MathML source with a statistics by at least a factor 3 more than the previous experiment carried out about 20 years ago.