Search for CP violation in charged-Xi and Lambda hyperon decays.
We have compared the p and p angular distributions in 117 x 10(6) Xi- -->Lambdapi- -->ppi-pi- and 41 x 10(6) Xi+ -->Lambda pi+ -->p pi+pi+ decays using a subset of the data from the HyperCP experiment (E871) at Fermilab. We find no evidence of CP violation, with the direct-CP-violating parameter AXiLambda identical with (alphaXialphaLambda-alpha Xialpha Lambda)/(alphaXialphaLambda+alphaXialphaLambda)=[0.0+/-5.1(stat)+/-4.4(syst)] x 10(-4).
Holmstrom
T
T
University of Virginia, Charlottesville, Virginia 22904, USA.
Leros
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Burnstein
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Chakravorty
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Chan
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Chen
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Choong
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Clark
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Dukes
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Durandet
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Felix
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Fu
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Gidal
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Gu
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Gustafson
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Huang
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James
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Jenkins
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Jones
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Kaplan
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Lederman
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Longo
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Lopez
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Luebke
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Nelson
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Park
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Rajaram
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Rubin
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Teng
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Volk
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White
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White
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Zyla
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