‎"CHAMBERLAIN, OWEN (+) EMILIO SEGRE ET AL.‎
‎Observation of antiprotons. - [THE NOBEL PRIZE IN PHYSICS 1959]‎

‎(New York), American physical Society, 1955. Lex8vo. In the original printed blue wrappers. In ""The Physical Review"", Volume 100, No. 3, November 1, 1955. Previous owner's stamp (Danish physicist C. Møller) to front wrapper. A very nice and clean copy externally as well as internally. Pp. 947-50. [Entire issue: 763-979].‎

Reference : 50118

‎First printing of Chamberlain, Segré, Wiegand and Ypsilantis landmark paper in which they first presented their discovery of antiprotons. Chambelain was together with Segré in 1959 awarded the Nobel prize in physics ""for their discovery of the antiproton"".The detection of the antiproton was first achieved in the fall of 1955 by the Berkeley physicists Owen Chamberlain [et al]. Their scintillators and Cerenkov counters showed about 60 antiproton condidates, but the ultimate proof of the particle, its annihilation with an ordinary proton, was not immediatedly confirmed. (Kragh, Quantum Generations). Since 1955, the antiparticles of many other subatomic particles have been created in particle accelerator experiments. In recent years, complete atoms ofantimatter have been assembled out of antiprotons and positrons, collected in electromagnetic traps.‎