Evidence for direct CP violation in the decay B-+/- -> D-(*()) K-+/-, D -> K-S(0)pi(+)pi(-) and measurement of the CKM phase phi(3)
- Authors
- Poluektov, A.; Bondar, A.; Yabsley, B. D.; Adachi, I.; Aihara, H.; Arinstein, K.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Balagura, V.; Barberio, E.; Bay, A.; Belous, K.; Bischofberger, M.; Bozek, A.; Bracko, M.; Browder, T. E.; Chang, M. -C.; Chang, P.; Chen, A.; Chen, K. -F.; Chen, P.; Cheon, B. G.; Cho, I. -S.; Choi, Y.; Dalseno, J.; Danilov, M.; Dash, M.; Drutskoy, A.; Dungel, W.; Eidelman, S.; Epifanov, D.; Gabyshev, N.; Garmash, A.; Goldenzweig, P.; Golob, B.; Ha, H.; Haba, J.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W. -S.; Hsiung, Y. B.; Hyun, H. J.; Iijima, T.; Inami, K.; Iwabuchi, M.; Iwasaki, M.; Iwasaki, Y.; Joshi, N. J.; Julius, T.; Kah, D. H.; Kang, J. H.; Kapusta, P.; Katayama, N.; Kawasaki, T.; Kiesling, C.; Kim, H. J.; Kim, H. O.; Kim, J. H.; Kim, M. J.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Kodys, P.; Korpar, S.; Krizan, P.; Krokovny, P.; Kuhr, T.; Kumar, R.; Kuzmin, A.; Kwon, Y. -J.; Kyeong, S. -H.; Lange, J. S.; Lee, M. J.; Lee, S. -H.; Li, J.; Liu, C.; Liventsev, D.; Louvot, R.; Matyja, A.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Mohanty, G. B.; Nakao, M.; Natkaniec, Z.; Neubauer, S.; Nishida, S.; Nishimura, K.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Pakhlova, G.; Park, H. K.; Petric, M.; Piilonen, L. E.; Roehrken, M.; Ryu, S.; Sahoo, H.; Sakai, Y.; Schneider, O.; Schwanda, C.; Schwartz, A. J.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shebalin, V.; Shen, C. P.; Shiu, J. -G.; Shwartz, B.; Singh, J. B.; Smerkol, P.; Sokolov, A.; Stanic, S.; Staric, M.; Sumisawa, K.; Sumiyoshi, T.; Suzuki, S.; Tanaka, M.; Trabelsi, K.; Tsuboyama, T.; Uehara, S.; Uno, S.; Usov, Y.; Varner, G.; Varvell, K. E.; Vervink, K.; Vinokurova, A.; Wang, C. H.; Wang, J.; Wang, M. -Z.; Wang, P.; Wang, X. L.; Watanabe, M.; Watanabe, Y.; Wedd, R.; Won, E.; Yamamoto, H.; Yamashita, Y.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zivko, T.; Zupanc, A.; Zyukova, O.
- Issue Date
- 16-6월-2010
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW D, v.81, no.11
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW D
- Volume
- 81
- Number
- 11
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/116230
- DOI
- 10.1103/PhysRevD.81.112002
- ISSN
- 1550-7998
- Abstract
- We present a new measurement of the unitarity triangle angle phi(3) using a Dalitz plot analysis of the K-S(0)pi(+)pi(-) decay of the neutral D meson produced in B-+/- -> D-(*()) K-+/- decays. The method exploits the interference between D-0 and (D) over bar (0) to extract the angle phi(3), strong phase delta, and the ratio r of suppressed and allowed amplitudes. We apply this method to a 605 fb(-1) data sample collected by the Belle experiment. The analysis uses three decays: B-+/- -> DK +/-, and B-+/- -> D*K-+/- with D* -> D pi(0) and D* -> D gamma, as well as the corresponding charge-conjugate modes. From a combined maximum likelihood fit to the three modes, we obtain phi(3) = 78.4 degrees (+10.8 degrees)(-11.6 degrees) +/- 3.6 degrees (syst) +/- 8.9 degrees (model). CP conservation in this process is ruled out at the confidence level (1 - CL) = 5 X 10(-4), or 3.5 standard deviations.
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