Measurement of D-0-(D) over bar(0) mixing and search for indirect CP violation using D-0 -> K-S(0)pi(+)pi(-) decays

Peng, T. ; Zhang, Z. P. ; Abdesselam, A. ; Adachi, I. ; Aihara, H. ; Arinstein, K. ; Asner, D. M. ; Aulchenko, V. ; Aushev, T. ; Ayad, R. ; Bakich, A. M. ; Bala, A. ; Bhardwaj, V. ; Bhuyan, B. ; Bobrov, A. ; Bondar, A. ; Bonvicini, G. ; Bozek, A. ; Cervenkov, D. ; Chekelian, V. ; Chen, A. ; Cheon, B. G. ; Cho, I. -S. ; Cho, K. ; Chobanova, V. ; Choi, Y. ; Cinabro, D. ; Dalseno, J. ; Danilov, M. ; Dolezal, Z. ; Drasal, Z. ; Drutskoy, A. ; Dutta, D. ; Eidelman, S. ; Epifanov, D. ; Farhat, H. ; Fast, J. E. ; Ferber, T. ; Frost, O. ; Gaur, V. ; Ganguly, S. ; Garmash, A. ; Gillard, R. ; Goh, Y. M. ; Golob, B. ; Haba, J. ; Hara, T. ; Hayasaka, K. ; Hayashii, H. ; He, X. H. ; Hoshi, Y. ; Hou, W. -S. ; Hyun, H. J. ; Iijima, T. ; Ishikawa, A. ; Itoh, R. ; Iwasaki, Y. ; Iwashita, T. ; Jaegle, I. ; Julius, T. ; Kang, J. H. ; Kato, E. ; Katrenko, P. ; Kawai, H. ; Kawasaki, T. ; Kichimi, H. ; Kim, D. Y. ; Kim, H. J. ; Kim, J. B. ; Kim, J. H. ; Kim, M. J. ; Kim, Y. J. ; Kinoshita, K. ; Klucar, J. ; Ko, B. R. ; Kodys, P. ; Korpar, S. ; Krizan, P. ; Krokovny, P. ; Kronenbitter, B. ; Kuhr, T. ; Kumar, R. ; Kumita, T. ; Kuzmin, A. ; Lee, S. -H. ; Li, Y. ; Gioi, L. Li ; Libby, J. ; Liu, C. ; Liu, Y. ; Liu, Z. Q. ; Liventsev, D. ; Lukin, P. ; Miyabayashi, K. ; Miyata, H. ; Mizuk, R. ; Mohanty, G. B. ; Moll, A. ; Mussa, R. ; Nakao, M. ; Natkaniec, Z. ; Nayak, M. ; Nedelkovska, E. ; Nisar, N. K. ; Nishida, S. ; Nitoh, O. ; Ogawa, S. ; Pakhlov, P. ; Park, H. ; Park, H. K. ; Pedlar, T. K. ; Pestotnik, R. ; Petric, M. ; Piilonen, L. E. ; Ribezl, E. ; Ritter, M. ; Roehrken, M. ; Rostomyan, A. ; Sahoo, H. ; Saito, T. ; Sakai, Y. ; Sandilya, S. ; Santel, D. ; Santelj, L. ; Sanuki, T. ; Sato, Y. ; Savinov, V. ; Schneider, O. ; Schnell, G. ; Schwanda, C. ; Schwartz, A. J. ; Seidl, R. ; Semmler, D. ; Senyo, K. ; Sevior, M. E. ; Shapkin, M. ; Shebalin, V. ; Shen, C. P. ; Shibata, T. -A. ; Shiu, J. -G. ; Shwartz, B. ; Sibidanov, A. ; Simon, F. ; Sohn, Y. -S. ; Sokolov, A. ; Solovieva, E. ; Stanic, S. ; Staric, M. ; Sumiyoshi, T. ; Tamponi, U. ; Tatishvili, G. ; Teramoto, Y. ; Trabelsi, K. ; Uchida, M. ; Uehara, S. ; Uglov, T. ; Unno, Y. ; Uno, S. ; Urquijo, P. ; Ushiroda, Y. ; Usov, Y. ; Van Hulse, C. ; Vanhoefer, P. ; Varner, G. ; Varvell, K. E. ; Vinokurova, A. ; Vorobyev, V. ; Wagner, M. N. ; Wang, C. H. ; Wang, M. -Z. ; Wang, P. ; Wang, X. L. ; Watanabe, M. ; Watanabe, Y. ; Wehle, S. ; Williams, K. M. ; Won, E. ; Yamashita, Y. ; Yashchenko, S. ; Yook, Y. ; Yuan, C. Z. ; Zhang, C. C. ; Zhilich, V. ; Zhulanov, V. ; Zupanc, A. ; Belle Collaboration

We report a measurement of D-0-(D) over bar(0) mixing parameters and a search for indirect CP violation through a time-dependent amplitude analysis of D-0 -> K-S(0)pi(+)pi(-) decays. The results are based on 921 fb(-1) of data accumulated with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. Assuming CP conservation, we measure the mixing parameters x = (0.56 +/- 0.19(-0.09-0.09)(+0.03+0.06))% and y = (0.30 +/- 0.15(-0.05-0.06)(+0.04+0.03))%, where the errors are statistical, experimental systematic, and systematic due to the amplitude model, respectively. With CP violation allowed, the parameters vertical bar q/p vertical bar = 0.90(-0.15-0.04-0.05)(+0.16+0.05+0.06) and arg(q/p) = (- 6 +/- 11 +/- 3(-4)(+3))degrees are found to be consistent with conservation of CP symmetry in mixing and in the interference between mixing and decay, respectively.


Published in:
Physical Review D, 89, 9, 091103(R), 1-8
Year:
2014
Publisher:
College Pk, Amer Physical Soc
ISSN:
1550-7998
Laboratories:




 Record created 2014-08-29, last modified 2018-12-03


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