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Evidence forC PViolation in the DecayD +→K S 0π +

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posted on 2024-08-06, 09:43 authored by B. R. Ko, E. Won, I. Adachi, H. Aihara, D. M. Asner, V. Aulchenko, T. Aushev, T. Aziz, A. M. Bakich, K. Belous, V. Bhardwaj, B. Bhuyan, M. Bischofberger, A. Bondar, G. Bonvicini, A. Bozek, M. Bračko, T. E. Browder, M.-C. Chang, A. Chen, P. Chen, B. G. Cheon, K. Chilikin, I.-S. Cho, K. Cho, Y. Choi, Z. Doležal, Z. Drásal, S. Eidelman, J. E. Fast, V. Gaur, N. Gabyshev, A. Garmash, Y. M. Goh, B. Golob, J. Haba, K. Hayasaka, H. Hayashii, Y. Horii, Y. Hoshi, W.-S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, A. Ishikawa, R. Itoh, M. Iwabuchi, Y. Iwasaki, T. Iwashita, T'Mir Julius, J. H. Kang, T. Kawasaki, C. Kiesling, H. O. Kim, J. B. Kim, K. T. Kim, M. J. Kim, Y. J. Kim, K. Kinoshita, S. Koblitz, P. Kodyš, S. Korpar, P. Križan, P. Krokovny, T. Kuhr, A. Kuzmin, Y.-J. Kwon, J. S. Lange, S.-H. Lee, J. Li, Y. Li, J. Libby, C.-L. Lim, C. Liu, Y. Liu, Z. Q. Liu, D. Liventsev, R. Louvot, D. Matvienko, Y. Miyazaki, R. Mizuk, G. B. Mohanty, A. Moll, T. Mori, N. Muramatsu, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, K. Nishimura, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, W. Ostrowicz, P. Pakhlov, G. Pakhlova, C. W. Park, H. K. Park, K. S. Park, T. K. Pedlar, R. Pestotnik, M. Petrič, L. E. Piilonen, A. Poluektov, M. Ritter, M. Röhrken, S. Ryu, H. Sahoo, K. Sakai, Y. Sakai, T. Sanuki, Y. Sato, O. Schneider, C. Schwanda, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, V. Shebalin, C. P. Shen, T.-A. Shibata, J.-G. Shiu, B. Shwartz, A. Sibidanov, F. Simon, P. Smerkol, Y.-S. Sohn, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, T. Sumiyoshi, S. Tanaka, G. Tatishvili, Y. Teramoto, K. Trabelsi, T. Tsuboyama, M. Uchida, S. Uehara, Y. Unno, S. Uno, G. Varner, K. E. Varvell, A. Vinokurova, V. Vorobyev, C. H. Wang, P. Wang, X. L. Wang, M. Watanabe, Y. Watanabe, H. Yamamoto, Y. Yamashita, C. Z. Yuan, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc
We observe evidence for CP violation in the decay D+→K0Sπ+ using a data sample with an integrated luminosity of 977  fb−1 collected by the Belle detector at the KEKB e+e− asymmetric-energy collider. The CP asymmetry in the decay is measured to be (−0.363±0.094±0.067)%, which is 3.2 standard deviations away from zero, and is consistent with the expected CP violation due to the neutral kaon in the final state.

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ISSN

0031-9007

Journal title

Physical Review Letters

Volume

109

Issue

2

Article number

article no. 021601

Publisher

American Physical Society

Copyright statement

Copyright © 2012 American Physical Society. The published version is reproduced in accordance with the copyright policy of the publisher.

Language

eng

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