Observation of Parity Violation in the Omega-minus -> Lambda + K-minus Decay
High Energy Physics - Experiment
2008-11-26 v1
Abstract
The alpha decay parameter in the process Omega-minus -> Lambda + K-minus has been measured from a sample of 4.50 million unpolarized Omega-minus decays recorded by the HyperCP (E871) experiment at Fermilab and found to be [1.78 +/- 0.19(stat) +/- 0.16(syst)]{\times}10^{-2}. This is the first unambiguous evidence for a nonzero alpha decay parameter, and hence parity violation, in the Omega-minus -> Lambda + K-minus decay.
Cite
@article{arxiv.hep-ex/0505010,
title = {Observation of Parity Violation in the Omega-minus -> Lambda + K-minus Decay},
author = {HyperCP Collaboration and L. C. Lu and R. A. Burnstein and A. Chakravorty and Y. C. Chen and W. -S. Choong and K. Clark and E. C. Dukes and C. Durandet and J. Felix and Y. Fu and G. Gidal and H. R. Gustafson and T. Holmstrom and M. Huang and C. James and C. M. Jenkins and T. D. Jones and D. M. Kaplan and M. J. Longo 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 J. Volk and C. G. White and S. L. White and P. Zyla},
journal= {arXiv preprint arXiv:hep-ex/0505010},
year = {2008}
}
Comments
10 pages, 7 figures