Journal
PHYSICAL REVIEW D
Volume 88, Issue 9, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.88.091104
Keywords
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Funding
- Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan
- Japan Society for the Promotion of Science (JSPS)
- Tau-Lepton Physics Research Center of Nagoya University
- Australian Research Council
- Australian Department of Industry, Innovation, Science and Research
- Austrian Science Fund [P 22742- N16]
- National Natural Science Foundation of China [10575109, 10775142, 10825524, 10875115, 10935008, 11175187]
- Ministry of Education, Youth and Sports of the Czech Republic [MSM0021620859]
- Carl Zeiss Foundation
- Deutsche Forschungsgemeinschaft
- Volkswagen Stiftung
- Department of Science and Technology of India
- Istituto Nazionale di Fisica Nucleare of Italy
- WCU program of the Ministry Education Science and Technology
- National Research Foundation of Korea [2011-0029457, 2012-0008143, 2012R1A1A2008330, 2013R1A1A3007772]
- BRL program under NRF [KRF-2011-0020333]
- BK21 Plus program
- GSDC of the Korea Institute of Science and Technology Information
- Polish Ministry of Science and Higher Education
- National Science Center
- Ministry of Education and Science of the Russian Federation
- Russian Federal Agency for Atomic Energy
- Slovenian Research Agency
- Basque Foundation for Science (IKERBASQUE)
- UPV/EHU [UFI 11/55]
- Swiss National Science Foundation
- National Science Council
- Ministry of Education of Taiwan
- U.S. Department of Energy
- National Science Foundation
- MEXT for Science Research in a Priority Area
- JSPS for Creative Scientific Research
- Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan
- Japan Society for the Promotion of Science (JSPS)
- Tau-Lepton Physics Research Center of Nagoya University
- Australian Research Council
- Australian Department of Industry, Innovation, Science and Research
- Austrian Science Fund [P 22742- N16]
- National Natural Science Foundation of China [10575109, 10775142, 10825524, 10875115, 10935008, 11175187]
- Ministry of Education, Youth and Sports of the Czech Republic [MSM0021620859]
- Carl Zeiss Foundation
- Deutsche Forschungsgemeinschaft
- Volkswagen Stiftung
- Department of Science and Technology of India
- Istituto Nazionale di Fisica Nucleare of Italy
- WCU program of the Ministry Education Science and Technology
- National Research Foundation of Korea [2011-0029457, 2012-0008143, 2012R1A1A2008330, 2013R1A1A3007772]
- BRL program under NRF [KRF-2011-0020333]
- BK21 Plus program
- GSDC of the Korea Institute of Science and Technology Information
- Polish Ministry of Science and Higher Education
- National Science Center
- Ministry of Education and Science of the Russian Federation
- Russian Federal Agency for Atomic Energy
- Slovenian Research Agency
- Basque Foundation for Science (IKERBASQUE)
- UPV/EHU [UFI 11/55]
- Swiss National Science Foundation
- National Science Council
- Ministry of Education of Taiwan
- U.S. Department of Energy
- National Science Foundation
- MEXT for Science Research in a Priority Area
- JSPS for Creative Scientific Research
- National Research Foundation of Korea [2012R1A1A2008330, 2013R1A1A3007772, 2011-0029457] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We report a study of the suppressed decay B- -> DK-, D -> K+ pi(-) pi(0), where D denotes either a D-0 or a (D) over bar (0) meson. The decay is sensitive to the CP-violating parameter phi(3). Using a data sample of 772 x 10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector, we measure the ratio of branching fractions of the above suppressed decay to the favored decay B- -> DK-, D -> K- pi(+) pi(0). Our result is R-DK = [1.98 +/- 0.62 (stat) +/- 0.24 (syst)] x 10(-2), which indicates the first evidence of the signal for this suppressed decay with a significance of 3.2 standard deviations. We measure the direct CP asymmetry between the suppressed B- and B+ decays to be A(DK) = 0.41 +/- 0.30(stat) +/- 0.05(syst). We also report measurements for the analogous quantities R-D pi and A(D pi) for the decay B- -> D pi(-), D -> K+ pi(-)pi(0).
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