Search for CP violation in the decays D(s)+→KS0π+ and D(s)+→KS0K+

B. R. Ko, E. Won, H. Aihara, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, K. Belous, V. Bhardwaj, M. Bischofberger, A. Bozek, M. Bračko, T. E. Browder, P. Chang, A. Chen, P. Chen, B. G. Cheon, I. S. Cho, Y. ChoiJ. Dalseno, A. Das, Z. Doležal, A. Drutskoy, S. Eidelman, P. Goldenzweig, B. Golob, H. Ha, T. Hara, H. Hayashii, Y. Horii, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, R. Itoh, M. Iwabuchi, M. Iwasaki, N. J. Joshi, D. H. Kah, J. H. Kang, P. Kapusta, N. Katayama, T. Kawasaki, H. O. Kim, Y. J. Kim, S. Korpar, P. Križan, P. Krokovny, T. Kuhr, T. Kumita, Y. J. Kwon, S. H. Kyeong, J. S. Lange, M. J. Lee, S. H. Lee, J. Li, C. Liu, Y. Liu, D. Liventsev, R. Louvot, A. Matyja, S. McOnie, H. Miyata, R. Mizuk, E. Nakano, M. Nakao, Z. Natkaniec, S. Neubauer, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, W. Ostrowicz, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, H. K. Park, R. Pestotnik, M. Petrič, L. E. Piilonen, M. Röhrken, S. Ryu, H. Sahoo, Y. Sakai, O. Schneider, C. Schwanda, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, V. Shebalin, C. P. Shen, J. G. Shiu, J. B. Singh, P. Smerkol, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, T. Sumiyoshi, M. Tanaka, G. N. Taylor, Y. Teramoto, K. Trabelsi, S. Uehara, Y. Unno, S. Uno, G. Varner, K. E. Varvell, K. Vervink, C. H. Wang, M. Z. Wang, P. Wang, M. Watanabe, Y. Watanabe, B. D. Yabsley, Y. Yamashita, M. Yamauchi, Z. P. Zhang, V. Zhilich, T. Zivko, A. Zupanc, O. Zyukova

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We have searched for CP violation in the charmed meson decays D(s)+→KS0π+ and D(s)+→KS0K+ using 673fb -1 of data collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. No evidence for CP violation is observed. We report the most sensitive CP asymmetry measurements to date for these decays: ACPD+→KS0π+=(-0. 71±0.19±0.20)%, ACPDs+→KS0π+=(+5.45±2. 50±0.33)%, ACPD+→KS0K+=(-0.16±0. 58±0.25)%, and ACPDs+→KS0K+=(+0.12±0.36±0. 22)%, where the first uncertainties are statistical and the second are systematic.

Original languageEnglish
Article number181602
JournalPhysical review letters
Issue number18
Publication statusPublished - 2010 May 7

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Ko, B. R., Won, E., Aihara, H., Aulchenko, V., Aushev, T., Bakich, A. M., Balagura, V., Barberio, E., Belous, K., Bhardwaj, V., Bischofberger, M., Bozek, A., Bračko, M., Browder, T. E., Chang, P., Chen, A., Chen, P., Cheon, B. G., Cho, I. S., ... Zyukova, O. (2010). Search for CP violation in the decays D(s)+→KS0π+ and D(s)+→KS0K+. Physical review letters, 104(18), [181602].