Measurement of the Asymmetry in the Decay {omega}{sup +}{yields}{lambda}K{sup +}{yields}p{pi}{sup +}K{sup +}
- University of Virginia, Charlottesville, Virginia 22904 (United States)
- Illinois Institute of Technology, Chicago, Illinois 60616 (United States)
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan (China)
- University of California, Berkeley, California 94720 (United States)
- University of South Alabama, Mobile, Alabama 36688 (United States)
- Universidad de Guanajuato, 37000 Leon (Mexico)
The asymmetry in the p angular distribution in the sequential decay {omega}{sup +}{yields}{lambda}K{sup +}{yields}p{pi}{sup +}K{sup +} has been measured to be {alpha}{sub {omega}}{alpha}{sub {lambda}}=[+1.16{+-}0.18(stat){+-}0.17(syst)]x10{sup -2} using 1.89x10{sup 6} unpolarized {omega}{sup +} decays recorded by the HyperCP (E871) experiment at Fermilab. Using the known value of {alpha}{sub {lambda}}, and assuming that {alpha}{sub {lambda}}=-{alpha}{sub {lambda}}, {alpha}{sub {omega}}=[-1.81{+-}0.28(stat){+-}0.26(syst)]x10{sup -2}. A comparison between this measurement of {alpha}{sub {omega}}{alpha}{sub {lambda}} and recent measurements of {alpha}{sub {omega}}{alpha}{sub {lambda}} made by HyperCP shows no evidence of a violation of CP symmetry.
- OSTI ID:
- 20775280
- Journal Information:
- Physical Review Letters, Vol. 96, Issue 24; Other Information: DOI: 10.1103/PhysRevLett.96.242001; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurement of the {alpha} asymmetry parameter for the {omega}{sup -}{yields}{lambda}K{sup -} Decay
Observation of parity violation in the Omega- ---> Lambda K- decay