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Updated: Aug 1, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Search for CP violation in charged-Xi and Lambda hyperon decays
T Holmstrom1, N Leros, R A Burnstein
1University of Virginia, Charlottesville, Virginia 22904, USA.
Abstract:
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).
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