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Title: Precise Measurement of the CP Violation Parameter sin2Φ1 in B⁰→(cc̄)K⁰ Decays

Abstract

We present a precise measurement of the CP violation parameter sin2Φ1 and the direct CP violation parameter Af using the final data sample of 772×10⁶ BB¯¯¯ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e⁺e⁻ collider. One neutral B meson is reconstructed in a J/ψK0S, ψ(2S)K0S, χc1K0S, or J/ψK0L CP eigenstate and its flavor is identified from the decay products of the accompanying B meson. From the distribution of proper-time intervals between the two B decays, we obtain the following CP violation parameters: sin2Φ1=0.667±0.023(stat)±0.012(syst) and Af=0.006±0.016(stat)±0.012(syst).

Authors:
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Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1098781
Resource Type:
Publisher's Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Name: Physical Review Letters Journal Volume: 108 Journal Issue: 17; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English

Citation Formats

Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Aziz, T., Bakich, A. M., Bay, A., Bhardwaj, V., Bhuyan, B., Bischofberger, M., Bondar, A., Bozek, A., Bračko, M., Browder, T. E., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Choi, S.-K., Choi, Y., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Eidelman, S., Epifanov, D., Fast, J. E., Gaur, V., Gabyshev, N., Garmash, A., Goh, Y. M., Golob, B., Haba, J., Hara, K., Hara, T., Hayasaka, K., Hayashii, H., Higuchi, T., Horii, Y., Hoshi, Y., Hou, W.-S., Hsiung, Y. B., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwabuchi, M., Iwasaki, Y., Iwashita, T., Julius, T., Kapusta, P., Katayama, N., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, H. J., Kim, H. O., Kim, J. B., Kim, J. H., Kim, K. T., Kim, Y. J., Kinoshita, K., Ko, B. R., Koblitz, S., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y.-J., Lange, J. S., Lee, S.-H., Li, J., Li, Y., Liu, C., Liu, Y., Liu, Z. Q., Liventsev, D., Louvot, R., Matvienko, D., McOnie, S., Miyabayashi, K., Miyata, H., Miyazaki, Y., Mizuk, R., Mohanty, G. B., Mori, T., Muramatsu, N., Nakano, E., Nakao, M., Nakazawa, H., Neubauer, S., Nishida, S., Nishimura, K., Nitoh, O., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Onuki, Y., Ozaki, H., Pakhlov, P., Pakhlova, G., Park, H. K., Park, K. S., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Poluektov, A., Röhrken, M., Rozanska, M., Sahoo, H., Sakai, K., Sakai, Y., Sanuki, T., Sato, Y., Schneider, O., Schwanda, C., Schwartz, A. J., Senyo, K., Shebalin, V., Shen, C. P., Shibata, T.-A., Shiu, J.-G., Shwartz, B., Sibidanov, A., Simon, F., Singh, J. B., Smerkol, P., Sohn, Y.-S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Tanaka, S., Tatishvili, G., Teramoto, Y., Tikhomirov, I., Trabelsi, K., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Ushiroda, Y., Vahsen, S. E., Varner, G., Varvell, K. E., Vinokurova, A., Vorobyev, V., Wang, C. H., Wang, M.-Z., Wang, P., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yabsley, B. D., Yamamoto, H., Yamashita, Y., Yamauchi, M., Yusa, Y., Zhang, Z. P., Zhilich, V., Zupanc, A., and Zyukova, O. Precise Measurement of the CP Violation Parameter sin2Φ1 in B⁰→(cc̄)K⁰ Decays. United States: N. p., 2012. Web. doi:10.1103/PhysRevLett.108.171802.
Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Aziz, T., Bakich, A. M., Bay, A., Bhardwaj, V., Bhuyan, B., Bischofberger, M., Bondar, A., Bozek, A., Bračko, M., Browder, T. E., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Choi, S.-K., Choi, Y., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Eidelman, S., Epifanov, D., Fast, J. E., Gaur, V., Gabyshev, N., Garmash, A., Goh, Y. M., Golob, B., Haba, J., Hara, K., Hara, T., Hayasaka, K., Hayashii, H., Higuchi, T., Horii, Y., Hoshi, Y., Hou, W.-S., Hsiung, Y. B., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwabuchi, M., Iwasaki, Y., Iwashita, T., Julius, T., Kapusta, P., Katayama, N., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, H. J., Kim, H. O., Kim, J. B., Kim, J. H., Kim, K. T., Kim, Y. J., Kinoshita, K., Ko, B. R., Koblitz, S., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y.-J., Lange, J. S., Lee, S.-H., Li, J., Li, Y., Liu, C., Liu, Y., Liu, Z. Q., Liventsev, D., Louvot, R., Matvienko, D., McOnie, S., Miyabayashi, K., Miyata, H., Miyazaki, Y., Mizuk, R., Mohanty, G. B., Mori, T., Muramatsu, N., Nakano, E., Nakao, M., Nakazawa, H., Neubauer, S., Nishida, S., Nishimura, K., Nitoh, O., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Onuki, Y., Ozaki, H., Pakhlov, P., Pakhlova, G., Park, H. K., Park, K. S., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Poluektov, A., Röhrken, M., Rozanska, M., Sahoo, H., Sakai, K., Sakai, Y., Sanuki, T., Sato, Y., Schneider, O., Schwanda, C., Schwartz, A. J., Senyo, K., Shebalin, V., Shen, C. P., Shibata, T.-A., Shiu, J.-G., Shwartz, B., Sibidanov, A., Simon, F., Singh, J. B., Smerkol, P., Sohn, Y.-S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Tanaka, S., Tatishvili, G., Teramoto, Y., Tikhomirov, I., Trabelsi, K., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Ushiroda, Y., Vahsen, S. E., Varner, G., Varvell, K. E., Vinokurova, A., Vorobyev, V., Wang, C. H., Wang, M.-Z., Wang, P., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yabsley, B. D., Yamamoto, H., Yamashita, Y., Yamauchi, M., Yusa, Y., Zhang, Z. P., Zhilich, V., Zupanc, A., & Zyukova, O. Precise Measurement of the CP Violation Parameter sin2Φ1 in B⁰→(cc̄)K⁰ Decays. United States. https://doi.org/10.1103/PhysRevLett.108.171802
Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Aziz, T., Bakich, A. M., Bay, A., Bhardwaj, V., Bhuyan, B., Bischofberger, M., Bondar, A., Bozek, A., Bračko, M., Browder, T. E., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Choi, S.-K., Choi, Y., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Eidelman, S., Epifanov, D., Fast, J. E., Gaur, V., Gabyshev, N., Garmash, A., Goh, Y. M., Golob, B., Haba, J., Hara, K., Hara, T., Hayasaka, K., Hayashii, H., Higuchi, T., Horii, Y., Hoshi, Y., Hou, W.-S., Hsiung, Y. B., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwabuchi, M., Iwasaki, Y., Iwashita, T., Julius, T., Kapusta, P., Katayama, N., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, H. J., Kim, H. O., Kim, J. B., Kim, J. H., Kim, K. T., Kim, Y. J., Kinoshita, K., Ko, B. R., Koblitz, S., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y.-J., Lange, J. S., Lee, S.-H., Li, J., Li, Y., Liu, C., Liu, Y., Liu, Z. Q., Liventsev, D., Louvot, R., Matvienko, D., McOnie, S., Miyabayashi, K., Miyata, H., Miyazaki, Y., Mizuk, R., Mohanty, G. B., Mori, T., Muramatsu, N., Nakano, E., Nakao, M., Nakazawa, H., Neubauer, S., Nishida, S., Nishimura, K., Nitoh, O., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Onuki, Y., Ozaki, H., Pakhlov, P., Pakhlova, G., Park, H. K., Park, K. S., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Poluektov, A., Röhrken, M., Rozanska, M., Sahoo, H., Sakai, K., Sakai, Y., Sanuki, T., Sato, Y., Schneider, O., Schwanda, C., Schwartz, A. J., Senyo, K., Shebalin, V., Shen, C. P., Shibata, T.-A., Shiu, J.-G., Shwartz, B., Sibidanov, A., Simon, F., Singh, J. B., Smerkol, P., Sohn, Y.-S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Tanaka, S., Tatishvili, G., Teramoto, Y., Tikhomirov, I., Trabelsi, K., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Ushiroda, Y., Vahsen, S. E., Varner, G., Varvell, K. E., Vinokurova, A., Vorobyev, V., Wang, C. H., Wang, M.-Z., Wang, P., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yabsley, B. D., Yamamoto, H., Yamashita, Y., Yamauchi, M., Yusa, Y., Zhang, Z. P., Zhilich, V., Zupanc, A., and Zyukova, O. Mon . "Precise Measurement of the CP Violation Parameter sin2Φ1 in B⁰→(cc̄)K⁰ Decays". United States. https://doi.org/10.1103/PhysRevLett.108.171802.
@article{osti_1098781,
title = {Precise Measurement of the CP Violation Parameter sin2Φ1 in B⁰→(cc̄)K⁰ Decays},
author = {Adachi, I. and Aihara, H. and Asner, D. M. and Aulchenko, V. and Aushev, T. and Aziz, T. and Bakich, A. M. and Bay, A. and Bhardwaj, V. and Bhuyan, B. and Bischofberger, M. and Bondar, A. and Bozek, A. and Bračko, M. and Browder, T. E. and Chen, P. and Cheon, B. G. and Chilikin, K. and Chistov, R. and Cho, K. and Choi, S.-K. and Choi, Y. and Dalseno, J. and Danilov, M. and Doležal, Z. and Drásal, Z. and Eidelman, S. and Epifanov, D. and Fast, J. E. and Gaur, V. and Gabyshev, N. and Garmash, A. and Goh, Y. M. and Golob, B. and Haba, J. and Hara, K. and Hara, T. and Hayasaka, K. and Hayashii, H. and Higuchi, T. and Horii, Y. and Hoshi, Y. and Hou, W.-S. and Hsiung, Y. B. and Hyun, H. J. and Iijima, T. and Ishikawa, A. and Itoh, R. and Iwabuchi, M. and Iwasaki, Y. and Iwashita, T. and Julius, T. and Kapusta, P. and Katayama, N. and Kawasaki, T. and Kichimi, H. and Kiesling, C. and Kim, H. J. and Kim, H. O. and Kim, J. B. and Kim, J. H. and Kim, K. T. and Kim, Y. J. and Kinoshita, K. and Ko, B. R. and Koblitz, S. and Kodyš, P. and Korpar, S. and Križan, P. and Krokovny, P. and Kuhr, T. and Kumar, R. and Kumita, T. and Kuzmin, A. and Kwon, Y.-J. and Lange, J. S. and Lee, S.-H. and Li, J. and Li, Y. and Liu, C. and Liu, Y. and Liu, Z. Q. and Liventsev, D. and Louvot, R. and Matvienko, D. and McOnie, S. and Miyabayashi, K. and Miyata, H. and Miyazaki, Y. and Mizuk, R. and Mohanty, G. B. and Mori, T. and Muramatsu, N. and Nakano, E. and Nakao, M. and Nakazawa, H. and Neubauer, S. and Nishida, S. and Nishimura, K. and Nitoh, O. and Ogawa, S. and Ohshima, T. and Okuno, S. and Olsen, S. L. and Onuki, Y. and Ozaki, H. and Pakhlov, P. and Pakhlova, G. and Park, H. K. and Park, K. S. and Pedlar, T. K. and Pestotnik, R. and Petrič, M. and Piilonen, L. E. and Poluektov, A. and Röhrken, M. and Rozanska, M. and Sahoo, H. and Sakai, K. and Sakai, Y. and Sanuki, T. and Sato, Y. and Schneider, O. and Schwanda, C. and Schwartz, A. J. and Senyo, K. and Shebalin, V. and Shen, C. P. and Shibata, T.-A. and Shiu, J.-G. and Shwartz, B. and Sibidanov, A. and Simon, F. and Singh, J. B. and Smerkol, P. and Sohn, Y.-S. and Sokolov, A. and Solovieva, E. and Stanič, S. and Starič, M. and Sumihama, M. and Sumisawa, K. and Sumiyoshi, T. and Tanaka, S. and Tatishvili, G. and Teramoto, Y. and Tikhomirov, I. and Trabelsi, K. and Tsuboyama, T. and Uchida, M. and Uehara, S. and Uglov, T. and Unno, Y. and Uno, S. and Ushiroda, Y. and Vahsen, S. E. and Varner, G. and Varvell, K. E. and Vinokurova, A. and Vorobyev, V. and Wang, C. H. and Wang, M.-Z. and Wang, P. and Watanabe, M. and Watanabe, Y. and Williams, K. M. and Won, E. and Yabsley, B. D. and Yamamoto, H. and Yamashita, Y. and Yamauchi, M. and Yusa, Y. and Zhang, Z. P. and Zhilich, V. and Zupanc, A. and Zyukova, O.},
abstractNote = {We present a precise measurement of the CP violation parameter sin2Φ1 and the direct CP violation parameter Af using the final data sample of 772×10⁶ BB¯¯¯ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e⁺e⁻ collider. One neutral B meson is reconstructed in a J/ψK0S, ψ(2S)K0S, χc1K0S, or J/ψK0L CP eigenstate and its flavor is identified from the decay products of the accompanying B meson. From the distribution of proper-time intervals between the two B decays, we obtain the following CP violation parameters: sin2Φ1=0.667±0.023(stat)±0.012(syst) and Af=0.006±0.016(stat)±0.012(syst).},
doi = {10.1103/PhysRevLett.108.171802},
journal = {Physical Review Letters},
number = 17,
volume = 108,
place = {United States},
year = {Mon Apr 23 00:00:00 EDT 2012},
month = {Mon Apr 23 00:00:00 EDT 2012}
}

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