Study of B{sup {+-}} {yields} J/{psi} {pi}{sup {+-}} and B{sup {+-}} {yields} J/{psi} K{sup {+-}} Decays: Measurement of the Ratio of Branching Fractions and Search for Direct CP Violation
The authors study B{sup {+-}} {yields} J/{psi} {pi}{sup {+-}} and B{sup {+-}} {yields} J/{psi} K{sup {+-}} decays in a sample of about 89 million B{bar B} pairs collected with the BABAR detector at the PEP-II asymmetric B-factory at SLAC. They observe a signal of 244 {+-} 20 B{sup {+-}} {yields} J/{psi} {pi}{sup {+-}} events and determine the ratio {Beta}(B{sup {+-}} {yields} J/{psi} {pi}{sup {+-}})/{Beta}(B{sup {+-}} {yields} J/{psi} K{sup {+-}}) to be [5.37 {+-} 0.45(stat.) {+-} 0.11(syst.)]%. The charge asymmetries for the B{sup {+-}} {yields} J/{psi} {pi}{sup {+-}} and B{sup {+-}} {yields} J/{psi} K{sup {+-}} decays are determined to be {Alpha}{sub {pi}} = 0.123 {+-} 0.085(stat.) {+-} 0.004(syst.) and {Alpha}{sub K} = 0.030 {+-} 0.015(stat.) {+-} 0.006(syst.), respectively.
- 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:
- 826694
- Report Number(s):
- SLAC-PUB-10318; TRN: US0404099
- Resource Relation:
- Other Information: PBD: 23 Jan 2004
- Country of Publication:
- United States
- Language:
- English
Similar Records
A Study of B+/- --> J/psi pi+/- and B+/- --> J/psi K+/- Decays: Measurement of the Ratio of Branching Fractions and Search for Direct CP-Violating Charge Asymmetries
Study of the K{sup +}{pi}{sup +}{pi}{sup -} final state in B{sup +}{yields}J/{psi}K{sup +}{pi}{sup +}{pi}{sup -} and B{sup +}{yields}{psi}'K{sup +}{pi}{sup +}{pi}{sup -}