A 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-Violating Charge Asymmetries
The authors have studied the B{sup {+-}} {yields} J/{psi}{pi}{sup {+-}} and B{sup {+-}} {yields} J/{psi}K{sup {+-}} decays using a 20.7 fb{sup -1} data set collected with the BABAR detector. They observe a signal of 51 {+-} 10 B{sup {+-}} {yields} J/{psi}{pi}{sup {+-}} events and determine the ratio {Beta}({sup {+-}} {yields} J/{psi}{pi}{sup {+-}})/{Beta}(B{sup {+-}} {yields} J/{psi}K{sup {+-}}) to be [3.91 {+-} 0.78(stat.) {+-} 0.19(syst.)]%. The CP-violating charge asymmetries for the B{sup {+-}} {yields} J/{psi}{pi}{sup {+-}} and B{sup {+-}} {yields} J/{psi}{sup {+-}}K{sup {+-}} decays are determined to be {Alpha}{sub {pi}} = 0.01 {+-} 0.22(stat.) {+-} 0.01(syst.) and {Alpha}{sub K} = 0.003 {+-} 0.030(stat.) {+-} 0.004(syst.).
- 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:
- 799430
- Report Number(s):
- SLAC-PUB-8942; TRN: US0205207
- Resource Relation:
- Other Information: PBD: 31 Jul 2002
- Country of Publication:
- United States
- Language:
- English
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