Measurement of the Time-Dependent CP Asymmetry in the B0->Phi K0 Decay
The authors present a measurement of the time-dependent CP asymmetry for the neutral B-meson decay B{sup 0} {yields} {phi} K{sup 0}. They use a sample of approximately 114 million B-meson pairs taken at the {Upsilon}(4S) resonance with the BABAR detector at the PEP-II B-meson Factory at SLAC. They reconstruct the CP eigenstates {phi}K{sub S}{sup 0} and {phi}K{sub L}{sup 0} where {phi} {yields} K{sup +}K{sup -}, K{sub S}{sup 0} {yields} {pi}{sup +}{pi}{sup -}, and K{sub L}{sup 0} is observed via its hadronic interactions. The other B meson in the event is tagged as either a B{sup 0} or {bar B}{sup 0} from its decay products. The values of the CP-violation parameters are S{sub {phi}K} = 0.47 {+-} 0.34(stat){sub -0.06}{sup +0.08}(syst) and C{sub {phi}K} = 0.01 {+-} 0.33(stat) {+-} 0.10(syst).
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 826807
- Report Number(s):
- SLAC-PUB-10382; TRN: US0404214
- Resource Relation:
- Other Information: PBD: 16 Mar 2004
- Country of Publication:
- United States
- Language:
- English
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