A search for particles of 550 me

• DOI: 10.1007/bf02740915
• Publication Date: 2007-12-18T09:51:03Z
• Authors: M. Conversi; E. Fiorini; S. Ratti; C. Rubbia; C. Succi; G. Torelli

In the experiment reported, mass determinations are essentially based on measurements of energy loss and range. The apparatus for detecting the particles is described. No 550 mass particles were observed in a time interval during which six could have been expected on the basis of their reported abundance.