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28 March 2024
 
  » arxiv » hep-ex/0502043

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Measurement of the Alpha Asymmetry Parameter for the Omega- to Lambda K- Decay
HyperCP Collaboration: Y. C. Chen ; R. A. Burnstein ; A. Chakravorty ; A. Chan ; W. S. Choong ; K. Clark ; E. C. Dukes ; C. Durandet ; J. Felix ; G. Gidal ; P. Gu ; H. R. Gustafson ; C. Ho ; T. Holmstrom ; M. Huang ; C. James ; C. M. Jenkins ; D. M. Kaplan ; L. M. Lederman ; N. Leros ; M. J. Longo ; F. Lopez ; L. C. Lu ; W. Luebke ; K. B. Luk ; K. S. Nelson ; H. K. Park ; J. P. Perroud ; D. Rajaram ; H. A. Rubin ; P. K. Teng ; J. Volk ; C. G. White ; S. L. White ; P. Zyla ;
Date 25 Feb 2005
Journal Phys.Rev. D71 (2005) 051102
Subject hep-ex
AbstractWe have measured the alpha parameter of the Omega- to Lambda K- decay using data collected with the HyperCP spectrometer during the 1997 fixed-target run at Fermilab. Analyzing a sample of 0.96 million Omega- to Lambda K^-, Lambda to p pi- decays, we obtain alpha_Omega*alpha_Lambda = [1.33+/-0.33(stat)+/-0.52(syst)] x 10^{-2}. With the accepted value of alpha_Lambda, alpha_Omega is found to be [2.07+/-0.51(stat)+/-0.81(syst)] x 10^{-2}.
Source arXiv, hep-ex/0502043
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