Measurement of the Alpha Asymmetry Parameter for the Omega- to Lambda K- Decay
High Energy Physics - Experiment
2008-11-26 v1
Abstract
We 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}.
Keywords
Cite
@article{arxiv.hep-ex/0502043,
title = {Measurement of the Alpha Asymmetry Parameter for the Omega- to Lambda K- Decay},
author = {HyperCP Collaboration and Y. C. Chen and R. A. Burnstein and A. Chakravorty and A. Chan and W. S. Choong and K. Clark and E. C. Dukes and C. Durandet and J. Felix and G. Gidal and P. Gu and H. R. Gustafson and C. Ho and T. Holmstrom and M. Huang and C. James and C. M. Jenkins and D. M. Kaplan and L. M. Lederman and N. Leros and M. J. Longo and F. Lopez and L. C. Lu and W. Luebke and K. B. Luk and K. S. Nelson and H. K. Park and J. P. Perroud and D. Rajaram and H. A. Rubin and P. K. Teng and J. Volk and C. G. White and S. L. White and P. Zyla},
journal= {arXiv preprint arXiv:hep-ex/0502043},
year = {2008}
}
Comments
5 pages, 4 figures, to be appeared as a Rapid Communication in Phys. Rev. D