A Measurement of the Time Dependence of B{sub d}-bar B{sub d} Mixing with Kaon Tagging
The time dependence of B{sub d} - {bar B}{sub d} mixing has been measured in b{bar b} events containing one or more kaons at the SLD experiment at the Stanford Linear Accelerator Center. A simultaneous measurement of the ''right sign production fraction'' of kaons from B{sub d} decays has also been made. The initial state B hadron flavor was determined using the large forward-backward asymmetry provided by the polarized electron beam of the SLC in combination with a jet charge technique and information from the opposite hemisphere. From a sample of 400,000 Z{sup 0} events collected by the SLD experiment at SLC from 1996 to 1998, the kaon right sign production fraction has been measured to be 0.797 {+-} 0.022 and the mass difference between the two B{sub d} eigenstates has been measured to be {Delta}m{sub d} = 0.503 {+-} 0.028 {+-} 0.020 ps{sup -1}.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 798942
- Report Number(s):
- SLAC-R-582; TRN: US0205104
- Resource Relation:
- Other Information: PBD: 10 Dec 2001
- Country of Publication:
- United States
- Language:
- English
Similar Records
Time Dependent B{sup 0} - bar-B{sup 0} Mixing at SLD
Preliminary measurements of the time dependence of B{sub d}{sup 0} - {bar B}{sub d}{sup 0} mixing with kaon and charge dipole tags