Search for CP Violation in Charged-Xi and Lambda Hyperon Decays

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dc.creatorHyperCP Collaboration
dc.creatorHolmstrom, T.
dc.creatorLeros, N.
dc.creatorBurnstein, R. A.
dc.creatorChakravorty, A.
dc.creatorChan, A.
dc.creatorChen, Y. C.
dc.creatorChoong, W. S.
dc.creatorClark, K.
dc.creatorDukes, E. C.
dc.creatorDurandet, C.
dc.creatorFelix, J.
dc.creatorFu, Y.
dc.creatorGidal, G.
dc.creatorGu, P.
dc.creatorGustafson, H. R.
dc.creatorHo, C.
dc.creatorHuang, M.
dc.creatorJames, C.
dc.creatorJenkins, C. M.
dc.creatorJones, T.
dc.creatorKaplan, D. M.
dc.creatorLederman, L. M.
dc.creatorLongo, M. J.
dc.creatorLopez, F.
dc.creatorLu, L. C.
dc.creatorLuebke, W.
dc.creatorLuk, K. B.
dc.creatorNelson, K. S.
dc.creatorPark, H. K.
dc.creatorPerroud, J. P.
dc.creatorRajaram, D.
dc.creatorRubin, H. A.
dc.creatorTeng, P. K.
dc.creatorVolk, J.
dc.creatorWhite, C. G.
dc.creatorWhite, S. L.
dc.creatorZyla, P.
dc.date2004-12-13
dc.date.accessioned2026-07-07T11:30:20Z
dc.date.available2026-07-07T11:30:20Z
dc.descriptionWe 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 $A_{ΞΛ} = \frac{α_Ξα_Λ - \barα_Ξ\barα_Λ}{α_Ξα_Λ + \barα_Ξ\barα_Λ} = [0.0+/-5.1(stat)+/-4.4(syst)]{\times}10^{-4}$.
dc.description4 pages, 4 figures, to be published in Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/hep-ex/0412038
dc.identifierhttp://arxiv.org/abs/hep-ex/0412038
dc.identifierPhys.Rev.Lett.93:262001,2004
dc.identifierdoi:10.1103/PhysRevLett.93.262001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/196981
dc.subjectHigh Energy Physics - Experiment
dc.titleSearch for CP Violation in Charged-Xi and Lambda Hyperon Decays
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