%0 Journal Article
%T Search for CP Violation in Charged-Xi and Lambda Hyperon Decays
%A HyperCP Collaboration
%A T. Holmstrom
%A N. Leros
%A R. A. Burnstein
%A A. Chakravorty
%A A. Chan
%A Y. C. Chen
%A W. S. Choong
%A K. Clark
%A E. C. Dukes
%A C. Durandet
%A J. Felix
%A Y. Fu
%A G. Gidal
%A P. Gu
%A H. R. Gustafson
%A C. Ho
%A M. Huang
%A C. James
%A C. M. Jenkins
%A T. Jones
%A D. M. Kaplan
%A L. M. Lederman
%A M. J. Longo
%A F. Lopez
%A L. C. Lu
%A W. Luebke
%A K. B. Luk
%A K. S. Nelson
%A H. K. Park
%A J. P. Perroud
%A D. Rajaram
%A H. A. Rubin
%A P. K. Teng
%A J. Volk
%A C. G. White
%A S. L. White
%A P. Zyla
%J Statistics
%D 2004
%I arXiv
%R 10.1103/PhysRevLett.93.262001
%X We have compared the proton and antiproton angular distributions in 117 million Xi-minus -> Lambda + pi-minus -> proton + pi-minus + pi-minus and 41 million anti-Xi-minus -> anti-Lamba + pi-plus -> antiproton + pi-plus + pi-plus 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 $A_{\Xi\Lambda} = \frac{\alpha_{\Xi}\alpha_{\Lambda} - \bar{\alpha}_{\Xi}\bar{\alpha}_{\Lambda}}{\alpha_{\Xi}\alpha_{\Lambda} + \bar{\alpha}_{\Xi}\bar{\alpha}_{\Lambda}} = [0.0+/-5.1(stat)+/-4.4(syst)]{\times}10^{-4}$.
%U http://arxiv.org/abs/hep-ex/0412038v1