7 research outputs found
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Experiments in a neutral hyperon beam
The authors propose a survey experiment for a neutral hyperon beam, to measure production of {Lambda}{sup 0}, {bar {Lambda}}{sup 0}, {Xi}{sup 0}, {bar {Xi}}{sup 0}, K{sub 1}{sup 0} - K{sub 2}{sup 0} near zero mrad. by 200 GeV protons on complex nuclei. The detector will be sensitive to polarization of the hyperons. The same apparatus will then be used to search for {Xi}{sup 0} {yields} p{pi}{sup -} and to measure {Lambda}{sup 0} and {bar {Lambda}}{sup 0} total and diffractive elastic cross sections in hydrogen
phase shifts and CP Violation in Decay
In the study of CP violation signals in {\O}\to\pi\Xi nonleptonic decays,
the strong =3/2 and phase shifts for the final-state
interactions are needed. These phases are calculated using an effective
Lagrangian model, including , (1530), and the -term,
in the intermediate states. The -term is calculated in terms of the
scalar form factor of the baryon.Comment: 6 pages, 2 figure
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Measurement of the sigma^o Lifetime
The Coulomb production of {Sigma}{sup 0} hyperons on uranium and nickel nuclei has been measured in a beam of {Lambda} hyperons at the CERN Proton Synchrotron. The results for the {Sigma}{sup 0} lifetime, {tau}{Sigma}{sup 0} = (0.58 {+-} 0.13) x 10{sup -19} sec, and for the {Sigma}{sup 0}-{Lambda} magnetic transition moment, |{mu}{Sigma}{sub {Lambda}}| = (1.82{sub -0.18}{sup +0.25}) nuclear magnetons, are in agreement with SU(3) predictions