Branching Fractions in B -> phi h and Search for Direct CP Violation in B+ -> phi K+
- SLAC
The authors present preliminary measurements of branching fractions of the b {yields} s{bar s}s penguin-dominated decays B{sup {+-}} {yields} {phi}K{sup {+-}} and B{sup 0} {yields} {phi}K{sup 0} in a sample of approximately 89 million B{bar B} pairs collected by the BABAR detector at the PEP-II asymmetric-energy B-meson Factor at SLAC. They determine {Beta}(B{sup {+-}} {yields} {phi}K{sup {+-}}) = (10.0{sub -0.8}{sup +0.9}(stat.) {+-} 0.5(syst.)) x 10{sup -6} and {Beta}(B{sup 0} {yields} {phi}K{sup 0}) = (7.6{sub -1.2}{sup +1.3}(stat.) {+-} 0.5(syst.)) x 10{sup -6}. Additionally, they measure the charge asymmetry {Alpha}{sub CP}(B{sup {+-}} {yields} {phi}K{sup {+-}}) = 0.039 {+-} 0.086(stat.) {+-} 0.011(syst.) and set an upper limit on the CKM- and color-suppressed decay B{sup {+-}} {yields} {phi}{pi}{sup {+-}}, {Beta}(B{sup {+-}} {yields} {phi}{pi}{sup {+-}}) < 0.41 x 10{sup -6} (90% CL).
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (US)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 812970
- Report Number(s):
- SLAC-PUB-9684
- Country of Publication:
- United States
- Language:
- English
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