Observation of B+→ρ+K0 and measurement of its branching fraction and charge asymmetry
(2007) Observation of B+→ρ+K0 and measurement of its branching fraction and charge asymmetry. Physical Review D, 76 (1). Article: 011103(R). ISSN 1550-7998 Full text not available from this repository.
Official URL: http://dx.doi.org/10.1103/PhysRevD.76.011103
We present the first observation of the decay B+->rho K-+(0), using a data sample of 348 fb(-1) collected at the Upsilon(4S) resonance with the BABAR detector. The branching fraction and charge asymmetry are measured to be (8.0(-1.3)(+1.4)+/- 0.6)x10(-6) and (-12.2 +/- 16.6 +/- 2.0)%, respectively, where the first uncertainty is statistical and the second is systematic. The charge asymmetry is defined by A(ch)=(Gamma(-)(B)-Gamma(+)(B))/(Gamma(-)(B)+Gamma(+)(B)) with Gamma(+/-)(B) the B-+/- decay rate. The significance of the observed branching fraction, including systematic uncertainties, is 7.9 standard deviations.
|Item Type:||Journal Article|
|Subjects:||Q Science > QB Astronomy
Q Science > QC Physics
|Divisions:||Faculty of Science > Physics|
|Journal or Publication Title:||Physical Review D|
|Publisher:||American Physical Society|
|Official Date:||July 2007|
|Number of Pages:||8|
|Page Range:||Article: 011103(R)|
|Access rights to Published version:||Restricted or Subscription Access|
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