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Mesons and recently discovered particles
NUCLEAR
INSTRUMENTS
1
(1957)
232;
NORTH-HOLLAND
PUBLISHING
CO. - A M S T E R D A M
CONFERENCES
EXTRA-ATMOSPHERIC
COSMIC R A D I A T I O N
On March 29, 1957 a conference of a group of cosmic ray physicists interested in the application of emulsion techniques and a number of engineers and government scientists interested in the scientific application of rockets was held in Baltimore under RIAS sponsorship. The main business of the conference was the consideration of the possibility of studying by the use of nuclear emulsions cosmic ray primaries outside the atmosphere, and in particular, of detecting the presence of any hitherto unobserved component of a low penetrating power. Mr. R. Patterson and Mr. W. J. Benckert, engineers of the Advanced Design Department of the Martin Company of Baltimore, presented a preliminary design of a vehicle which would allow an oriented stack of 50 pounds of emulsions to be exposed for 40 minutes with a total shielding of less than 0.1 gm/cm 2 while outside the atmosphere. This vehicle, which is to be launched in a vertical shot, would be capable of preserving the emulsion during re-entry into the earth's atmosphere and the eventual fall to earth. During the subsequent discussion,
RESEARCH
it became evident that such a vehicle could also be used to great advantage for a number of other experiments without interfering with the emulsion studies. In view of the great scientific potentialities of such a cosmic ray experiment, the physicists formed a committee to consider it in more detail and to arrange a program of cooperative research of all interested scientists at such time as the vehicle is launched. The membership of the committee is: G. Groetzinger (chairman), M. F. Kaplon, S. A. Korff, E. P. Ney, W. J. Otting, A. Pevsner, M. Pomerantz, B. Rossi, M. Schein, M. M. Shapiro, S. Sflverman, and H. Yagoda. In a subsequent meeting the committee chose to designate itself as "National Committee for Extra-Atmospheric Cosmic Ray Research" and to consider also the possibility of other new extra-atmospheric cosmic ray experiments. At this meeting, J. A. Simpson joined the committee and W. A. Benckert was designated a consultant.
MESONS AND RECENTLY DISCOVERED
PARTICLES
From September 22 :nd to 28th 1957 a Conference will be held at the University of Padova and the Foundazione Cirri in Venice on "Mesons and Recently Discovered Particles". Both theoretical and experimental work will be presented. The Conference will be sponsored by the International Union of Pure and Applied Physics and the Societa Italiana di Fisica, in co-operation with the Consiglio Nazionale delle Ricerche. A tentative list of the chief topics to be discussed during the Conference is as follows: A. PIoNs (1) Experimental (2) Theoretical B. STRANGE PARTICLES, K-MESONS AND HYPERONS
(1) Properties and Production (2) Interactions (3) Models and Theories of Nuclear Interactions C. PROPERTIES AND INTERACTIONSOF ANTINUCLEONS
232
INSTRUMENTS
1
(1957)
232;
NORTH-HOLLAND
PUBLISHING
CO. - A M S T E R D A M
CONFERENCES
EXTRA-ATMOSPHERIC
COSMIC R A D I A T I O N
On March 29, 1957 a conference of a group of cosmic ray physicists interested in the application of emulsion techniques and a number of engineers and government scientists interested in the scientific application of rockets was held in Baltimore under RIAS sponsorship. The main business of the conference was the consideration of the possibility of studying by the use of nuclear emulsions cosmic ray primaries outside the atmosphere, and in particular, of detecting the presence of any hitherto unobserved component of a low penetrating power. Mr. R. Patterson and Mr. W. J. Benckert, engineers of the Advanced Design Department of the Martin Company of Baltimore, presented a preliminary design of a vehicle which would allow an oriented stack of 50 pounds of emulsions to be exposed for 40 minutes with a total shielding of less than 0.1 gm/cm 2 while outside the atmosphere. This vehicle, which is to be launched in a vertical shot, would be capable of preserving the emulsion during re-entry into the earth's atmosphere and the eventual fall to earth. During the subsequent discussion,
RESEARCH
it became evident that such a vehicle could also be used to great advantage for a number of other experiments without interfering with the emulsion studies. In view of the great scientific potentialities of such a cosmic ray experiment, the physicists formed a committee to consider it in more detail and to arrange a program of cooperative research of all interested scientists at such time as the vehicle is launched. The membership of the committee is: G. Groetzinger (chairman), M. F. Kaplon, S. A. Korff, E. P. Ney, W. J. Otting, A. Pevsner, M. Pomerantz, B. Rossi, M. Schein, M. M. Shapiro, S. Sflverman, and H. Yagoda. In a subsequent meeting the committee chose to designate itself as "National Committee for Extra-Atmospheric Cosmic Ray Research" and to consider also the possibility of other new extra-atmospheric cosmic ray experiments. At this meeting, J. A. Simpson joined the committee and W. A. Benckert was designated a consultant.
MESONS AND RECENTLY DISCOVERED
PARTICLES
From September 22 :nd to 28th 1957 a Conference will be held at the University of Padova and the Foundazione Cirri in Venice on "Mesons and Recently Discovered Particles". Both theoretical and experimental work will be presented. The Conference will be sponsored by the International Union of Pure and Applied Physics and the Societa Italiana di Fisica, in co-operation with the Consiglio Nazionale delle Ricerche. A tentative list of the chief topics to be discussed during the Conference is as follows: A. PIoNs (1) Experimental (2) Theoretical B. STRANGE PARTICLES, K-MESONS AND HYPERONS
(1) Properties and Production (2) Interactions (3) Models and Theories of Nuclear Interactions C. PROPERTIES AND INTERACTIONSOF ANTINUCLEONS
232