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

B. R. Ko, Eunil 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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Abstract

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
Volume104
Issue number18
DOIs
Publication statusPublished - 2010 May 7

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

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]. https://doi.org/10.1103/PhysRevLett.104.181602