This title appears in the Scientific Report :
2019
Please use the identifier:
http://hdl.handle.net/2128/23709 in citations.
Please use the identifier: http://dx.doi.org/10.1103/PhysRevD.98.112008 in citations.
Measurement of the branching fraction and time-dependent C P asymmetry for B 0 → J / ψ π 0 decays
Measurement of the branching fraction and time-dependent C P asymmetry for B 0 → J / ψ π 0 decays
We measure the branching fraction and time-dependent CP-violating asymmetry for B0→J/ψπ0 decays using a data sample of 711 fb−1 collected on the Υ(4S) resonance by the Belle experiment running at the KEKB e+e− collider. The branching fraction is measured to be B(B0→J/ψπ0)=[1.62±0.11(stat)±0.06(syst...
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Please use the identifier: http://dx.doi.org/10.1103/PhysRevD.98.112008 in citations.
We measure the branching fraction and time-dependent CP-violating asymmetry for B0→J/ψπ0 decays using a data sample of 711 fb−1 collected on the Υ(4S) resonance by the Belle experiment running at the KEKB e+e− collider. The branching fraction is measured to be B(B0→J/ψπ0)=[1.62±0.11(stat)±0.06(syst)]×10−5, which is the most precise measurement to date. The measured CP asymmetry parameters are S=−0.59±0.19(stat)±0.03(syst) and A=−0.15±0.14(stat)+0.04−0.03(syst). The mixing-induced CP asymmetry (S) differs from the case of no CP violation by 3.0 standard deviations, and the direct CP asymmetry (A) is consistent with zero. |