Abstract
0
Sπ+π0 using the full BABAR data set of 470.9±2.8 million B
¯
B events collected at the Υ(4S) resonance. We measure the overall branching fraction and CP asymmetry to be B(B+→K0π+π0)=(31.8±1.8±2.1
+6.0
−0.0)×10−6 and ACP(B+→K0π+π0)=0.07±0.05±0.03
+0.02
−0.03, where the uncertainties are statistical, systematic, and due to the signal model, respectively. This is the first measurement of the branching fraction for B+→K0π+π0. We find first evidence of a CP asymmetry in B+→K∗(892)+π0 decays: ACP(B+→K∗(892)+π0)=−0.52±0.14±0.04
+0.04
−0.02. The significance of this asymmetry, including systematic and model uncertainties, is 3.4 standard deviations. We also measure the branching fractions and CP asymmetries for three other intermediate decay modes.
Original language | English |
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Article number | 072001 |
Journal | Physical Review D |
Volume | 96 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2 Oct 2017 |
Funding
We are grateful for the extraordinary contributions of our PEP-II colleagues in achieving the excellent luminosity and machine conditions that have made this work possible. The success of this project also relies critically on the expertise and dedication of the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and the kind hospitality extended to them. This work is supported by the US Department of Energy and National Science Foundation, the Natural Sciences and Engineering Research Council (Canada), the Commissariat à l’Energie Atomique and Institut National de Physique Nucléaire et de Physique des Particules (France), the Bundesministerium für Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), the Foundation for Fundamental Research on Matter (The Netherlands), the Research Council of Norway, the Ministry of Education and Science of the Russian Federation, Ministerio de Economía y Competitividad (Spain), the Science and Technology Facilities Council (United Kingdom), and the Binational Science Foundation (U.S.-Israel). Individuals have received support from the Marie-Curie IEF program (European Union) and the A. P. Sloan Foundation (USA).
Funders | Funder number |
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A. P. Sloan Foundation | |
National Science Foundation | |
U.S. Department of Energy | |
Natural Sciences and Engineering Research Council of Canada | |
Science and Technology Facilities Council | |
Marie Curie | |
European Commission | |
Deutsche Forschungsgemeinschaft | |
Stichting voor Fundamenteel Onderzoek der Materie | |
United States-Israel Binational Science Foundation | U.S.-Israel |
Bundesministerium für Bildung und Forschung | |
Ministerio de Economía y Competitividad | |
Ministry of Education and Science of the Russian Federation | |
Instituto Nazionale di Fisica Nucleare | |
Norges forskningsråd | |
Commissariat à l'Énergie Atomique et aux Énergies Alternatives | |
Institut national de physique nucléaire et de physique des particules |