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First observation of CP violation and improved measurement of the branching fraction and polarization of B-0 -> D*(+) D*(-) decays
- Authors
- Kronenbitter, B.; Adachi, I.; Aihara, H.; Arinstein, K.; Asner, D. M.; Aushev, T.; Aziz, T.; Bakich, A. M.; Barrett, M.; Belous, K.; Bhardwaj, V.; Bhuyan, B.; Bondar, A.; Bozek, A.; Bracko, M.; Brovchenko, O.; Browder, T. E.; Chekelian, V.; Chen, A.; Chen, P.; Cheon, B. G.; Chistov, R.; Cho, I. -S.; Cho, K.; Choi, Y.; Dalseno, J.; Dolezal, Z.; Drasal, Z.; Drutskoy, A.; Eidelman, S.; Esen, S.; Fast, J. E.; Feindt, M.; Gaur, V.; Gabyshev, N.; Goh, Y. M.; Haba, J.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W. -S.; Hsiung, Y. B.; Iijima, T.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwabuchi, M.; Iwasaki, Y.; Julius, T.; Kang, J. H.; Kapusta, P.; Kawasaki, T.; Kiesling, C.; Kim, H. J.; Kim, H. O.; Kim, J. B.; Kim, J. H.; Kim, K. T.; Kim, M. J.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Koblitz, S.; Kodys, P.; Korpar, S.; Kouzes, R. T.; Krizan, P.; Krokovny, P.; Kuhr, T.; Kumar, R.; Kumita, T.; Kwon, Y. -J.; Lee, S. -H.; Li, J.; Li, Y.; Libby, J.; Liu, Y.; Liu, Z. Q.; Liventsev, D.; Louvot, R.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Mohapatra, D.; Moll, A.; Nakano, E.; Nakao, M.; Neubauer, S.; Ng, C.; Nishida, S.; Nishimura, K.; Nitoh, O.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Onuki, Y.; Ozaki, H.; Pakhlov, P.; Pakhlova, G.; Park, C. W.; Park, H.; Park, H. K.; Pestotnik, R.; Petric, M.; Piilonen, L. E.; Prim, M.; Ritter, M.; Roehrken, M.; Ryu, S.; Sahoo, H.; Sakai, Y.; Sandilya, S.; Santelj, L.; Sanuki, T.; Schneider, O.; Schwanda, C.; Schwartz, A. J.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shen, C. P.; Shibata, T. -A.; Shiu, J. -G.; Sibidanov, A.; Simon, F.; Smerkol, P.; Sohn, Y. -S.; Sokolov, A.; Solovieva, E.; Stanic, S.; Staric, M.; Sumihama, M.; Sumisawa, K.; Sumiyoshi, T.; Tatishvili, G.; Teramoto, Y.; Trabelsi, K.; Tsuboyama, T.; Uchida, M.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Usov, Y.; Vanhoefer, P.; Varner, G.; Varvell, K. E.; Vorobyev, V.; Wang, C. H.; Wang, P.; Watanabe, Y.; Williams, K. M.; Won, E.; Yabsley, B. D.; Yamaoka, J.; Yamashita, Y.; Zander, D.; Zhilich, V.; Zhulanov, V.; Zupanc, A.
- Issue Date
- 18-10월-2012
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW D, v.86, no.7
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW D
- Volume
- 86
- Number
- 7
- ISSN
- 1550-7998
- Abstract
- We report the measurement of the branching fraction, the polarization, and the parameters of the time-dependent CP violation in B-0 -> D*(+) D*(-) decays using a data sample of 772 x 10(6)B (B) over bar pairs, collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We obtain a branching fraction of B = (7.82 +/- 0.38 +/- 0.63) x 10(-4), a CP-odd fraction of R-perpendicular to = 0.138 +/- 0.024 +/- 0.006 and, additionally, a fraction of the longitudinal component in the transversity base of R-0 = 0.624 +/- 0.029 +/- 0.011. The measured values of the parameters of the CP violation are SD*+ D*- = 0.79 +/- 0.13 +/- 0.03 and A(D*+ D*-) 0.15 +/- 0.08 +/- 0.04.
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Collections - College of Science > Department of Physics > 1. Journal Articles
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