Neddermeyer

Baumer M, Libuda), SandellA, Freund H-J, GrawG, Bertrams T, Neddermeyer H (1995) Ber Bunsenges Phys Chem 99 1381... 

Neddermeyer, P. A. and Rogers, L. B., Column efficiency and electrolyte effects of inorganic salts in aqueous gel chromatography, Anal. Chem., 41, 94, 1969. 

Neddermeyer H. Scanning Tunneling Microscopy, Kluwer Academic Publisher, Dordrecht, Boston, MA, 1993. 

Wengelink, H., and Neddermeyer, H. (1990). Oxygen-induced sharpening process of W(lll) tips for scanning tunneling microscope use. J. Vac. Sci. TechnoL A 8, 438-440. 

Neddermeyer, H. (1971) Electronic Density of States Proceedings of 3rd 3MR Symposium. 

The picture, however, had changed rapidly after the end of the Second World War. The experiment of Conversi, Pancini, and Piccioni59 had shown that this particle had an interaction with nuclei much weaker than that expected for the Yukawa mediator. At the beginning of October of the same year 1947, Lattes, Occhialini, and Powell60 in Bristol had discovered in cosmic rays a new particle, that they called ir-meson. It is unstable and decays, with a mean life of 10-8 sec, into a neutrino and the particle of Anderson and Neddermeyer that was called p-meson or muon. 

Mesons were discovered in 1936, by the American physicists Carl Anderson and Seth Neddermeyer at the California Institute of Technology. They are produced by interaction of cosmic ra s with matter. They are either positive or negative in charge neutral mesons may also exist. Mesons are known with masses about 216 and 285 times that of the electron (called fi mesons and tt mesons, respectively), and there is evidence also for the existence of still heavier mesons (with mass about 900 times that of the electron). Mesons have very short lives they probably undergo decomposition into a positron or electron and two neutrinos. 

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