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Search forC PViolation in the DecaysD 0→K S 0P 0

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posted on 2024-08-06, 09:41 authored by B. R. Ko, E. Won, K. Arinstein, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, K. Belous, V. Bhardwaj, B. Bhuyan, M. Bischofberger, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, A. Chen, P. Chen, B. G. Cheon, C.-C. Chiang, I.-S. Cho, K. Cho, K.-S. Choi, S.-K. Choi, Y. Choi, S. Eidelman, D. Epifanov, M. Feindt, N. Gabyshev, A. Garmash, B. Golob, H. Ha, J. Haba, H. Hayashii, Y. Horii, Y. Hoshi, W.-S. Hou, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, M. Iwabuchi, T. Iwashita, T'Mir Julius, J. H. Kang, T. Kawasaki, C. Kiesling, H. O. Kim, M. J. Kim, Y. J. Kim, K. Kinoshita, P. Kodyš, S. Korpar, P. Križan, R. Kumar, A. Kuzmin, Y.-J. Kwon, S.-H. Kyeong, M. J. Lee, S.-H. Lee, C. Liu, D. Liventsev, R. Louvot, A. Matyja, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, G. B. Mohanty, T. Mori, E. Nakano, M. Nakao, S. Nishida, K. Nishimura, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, P. Pakhlov, C. W. Park, H. Park, H. K. Park, R. Pestotnik, M. Petrič, L. E. Piilonen, A. Poluektov, M. Röhrken, Y. Sakai, O. Schneider, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, V. Shebalin, C. P. Shen, J.-G. Shiu, B. Shwartz, F. Simon, J. B. Singh, P. Smerkol, Y.-S. Sohn, E. Solovieva, S. Stanič, M. Starič, M. Sumihama, K. Sumisawa, T. Sumiyoshi, S. Tanaka, Y. Teramoto, K. Trabelsi, M. Uchida, S. Uehara, T. Uglov, Y. Unno, Y. Usov, G. Varner, K. E. Varvell, A. Vinokurova, C. H. Wang, M.-Z. Wang, Y. Watanabe, Y. Yamashita, M. Yamauchi, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc, O. Zyukova
We have searched for CP violation in the decays D0→KS0P0 where P0 denotes a neutral pseudoscalar meson that is either a π0, η, or η′ using KEKB asymmetric-energy e+e- collision data corresponding to an integrated luminosity of 791fb-1 collected with the Belle detector. No evidence of significant CP violation is observed. We report the most precise CP asymmetry measurement in the decay D0→KS0π0 to date: ACPD0→KS0π0=(-0.28±0.19±0.10)%. We also report the first measurements of CP asymmetries in the decays D0→KS0η and D0→KS0η′: ACPD0→KS0η= (+0.54±0.51±0.16)% and ACPD0→KS0η′=(+0. 98±0.67±0.14)%, respectively.

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ISSN

0031-9007

Journal title

Physical Review Letters

Volume

106

Issue

21

Article number

article no. 211801

Publisher

American Physical Society

Copyright statement

Copyright © 2011 American Physical Society. The published version is reproduced in accordance with the copyright policy of the publisher.

Language

eng

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