Measurement of the CP Asymmetry and BranchingFraction of B^0 to \rho^{0}K^0
Journal Article
·
· Submitted to Physical Review Letters
OSTI ID:890237
The authors present a measurement of the branching fraction and time-dependent CP asymmetry of B{sup 0} {yields} {rho}{sup 0}K{sup 0}. The results are obtained from a data sample of 227 x 10{sup 6} {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. From a time-dependent maximum likelihood fit yielding 111 {+-} 19 signal events they find {Beta}(B{sup 0} {yields} {rho}{sup 0}K{sup 0}) = (4.9 {+-} 0.8 {+-} 0.9) x 10{sup -6}, where the first error is statistical and the second systematic. They report the measurement of the CP parameters S{sub {rho}{sup 0}K{sub S}{sup 0}} = 0.20 {+-} 0.52 {+-} 0.24 and C{sub {rho}{sup 0}K{sub S}{sup 0}} = 0.64 {+-} 0.41 {+-} 0.20.
- Research Organization:
- Stanford Linear Accelerator Center (SLAC)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76SF00515;
- OSTI ID:
- 890237
- Report Number(s):
- SLAC-PUB-12072; hep-ex/0608051
- Journal Information:
- Submitted to Physical Review Letters, Journal Name: Submitted to Physical Review Letters
- Country of Publication:
- United States
- Language:
- English
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