Production of a Theta Degree Particle Without an AssociatedHyperon in a Pi-P Collision Page: 4 of 14
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PRODUCTION OF A 00 PARTICLE WITHOUT
AN ASSOCIATED HYPERON IN A T~-p COLLISION
William B. Fowler, George Maenchen, Wilson M. Powell,
George Saphir, * and Robert W. Wright
Radiation Laboratory and Department of Physics
University of California, Berkeley, California
February 29, 1956
An event is described that is interpreted as evidence for the simul-
taneous production of a 00 and a To according to the scheme of Gell-Mann and
Pais. This interpretation assumes the production of a normal 0" and a K0
with no associated hyperon, where the 00 is observed and the K0 is inferred
from the rule of associated production of heavy unstable particles. The event
was obtained by exposing a high-pressure diffusion cloud chamber to a 4. 5-
Bev/c Tr -meson beam from the Bevatron. The event is most reasonably in-
Tr + p -- Tr + p + 00 + (neutral)
Energy and momentum conservation are satisfied by an undetected neutral
particle having a mass of 502+ 2 Mev. This is consistent with the associated
production of a 00 and a e according to the scheme of Gell-Mann and Pais.
Details are given and alternative interpretations are discussed.
*Also at the University of San Francisco
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Fowler, William B.; Maenchen, George; Wilson, Powell M.; Saphir,George & Wright, Robert W. Production of a Theta Degree Particle Without an AssociatedHyperon in a Pi-P Collision, report, February 29, 1956; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc890831/m1/4/: accessed November 13, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.