Precise measurement of the CP violation parameter sin2 1 in B0→(cc̄)K0 decays

I. Adachi, H. Aihara, D. M. Asner, V. Aulchenko, T. Aushev, T. Aziz, A. M. Bakich, A. Bay, V. Bhardwaj, B. Bhuyan, M. Bischofberger, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, P. Chen, B. G. Cheon, K. Chilikin, R. Chistov, K. Cho & 156 others S. K. Choi, Y. Choi, J. Dalseno, M. Danilov, Z. Doleal, Z. Drásal, S. Eidelman, D. Epifanov, J. E. Fast, V. Gaur, N. Gabyshev, A. Garmash, Y. M. Goh, B. Golob, J. Haba, K. Hara, T. Hara, K. Hayasaka, H. Hayashii, T. Higuchi, 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. Julius, P. Kapusta, N. Katayama, T. Kawasaki, H. Kichimi, C. Kiesling, H. J. Kim, H. O. Kim, J. B. Kim, J. H. Kim, K. T. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, S. Koblitz, P. Kody, S. Korpar, P. Krian, P. Krokovny, T. Kuhr, R. Kumar, T. Kumita, A. Kuzmin, Y. J. Kwon, J. S. Lange, S. H. Lee, J. Li, Y. Li, C. Liu, Y. Liu, Z. Q. Liu, D. Liventsev, R. Louvot, D. Matvienko, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, G. B. Mohanty, T. Mori, N. Muramatsu, E. Nakano, M. Nakao, H. Nakazawa, S. Neubauer, S. Nishida, K. Nishimura, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, H. K. Park, K. S. Park, T. K. Pedlar, R. Pestotnik, M. Petrič, L. E. Piilonen, A. Poluektov, M. Röhrken, M. Rozanska, H. Sahoo, K. Sakai, Y. Sakai, T. Sanuki, Y. Sato, O. Schneider, C. Schwanda, A. J. Schwartz, K. Senyo, V. Shebalin, C. P. Shen, T. A. Shibata, J. G. Shiu, B. Shwartz, A. Sibidanov, F. Simon, J. B. Singh, P. Smerkol, Y. S. Sohn, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, M. Sumihama, K. Sumisawa, T. Sumiyoshi, S. Tanaka, G. Tatishvili, Y. Teramoto, I. Tikhomirov, K. Trabelsi, T. Tsuboyama, M. Uchida, S. Uehara, T. Uglov, Y. Unno, S. Uno, Y. Ushiroda, S. E. Vahsen, G. Varner, K. E. Varvell, A. Vinokurova, V. Vorobyev, C. H. Wang, M. Z. Wang, P. Wang, M. Watanabe, Y. Watanabe, K. M. Williams, Eunil Won, B. D. Yabsley, H. Yamamoto, Y. Yamashita, M. Yamauchi, Y. Yusa, Z. P. Zhang, V. Zhilich, A. Zupanc, O. Zyukova

Research output: Contribution to journalArticle

86 Citations (Scopus)

Abstract

We present a precise measurement of the CP violation parameter sin2 1 and the direct CP violation parameter A f using the final data sample of 772×106 BB̄ 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/ψKS0, ψ(2S)KS0, χ c1KS0, or J/ψKL0 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: sin2 1=0.667±0. 023(stat)±0.012(syst) and A f=0.006±0.016(stat) ±0.012(syst).

Original languageEnglish
Article number171802
JournalPhysical Review Letters
Volume108
Issue number17
DOIs
Publication statusPublished - 2012 Apr 24

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CP violation
decay
mesons
eigenvectors
intervals
detectors
products
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Aziz, T., ... Zyukova, O. (2012). Precise measurement of the CP violation parameter sin2 1 in B0→(cc̄)K0 decays. Physical Review Letters, 108(17), [171802]. https://doi.org/10.1103/PhysRevLett.108.171802

Precise measurement of the CP violation parameter sin2 1 in B0→(cc̄)K0 decays. / 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.; Doleal, 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.; Kody, P.; Korpar, S.; Krian, 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, Eunil; Yabsley, B. D.; Yamamoto, H.; Yamashita, Y.; Yamauchi, M.; Yusa, Y.; Zhang, Z. P.; Zhilich, V.; Zupanc, A.; Zyukova, O.

In: Physical Review Letters, Vol. 108, No. 17, 171802, 24.04.2012.

Research output: Contribution to journalArticle

Adachi, I, Aihara, H, Asner, DM, Aulchenko, V, Aushev, T, Aziz, T, Bakich, AM, Bay, A, Bhardwaj, V, Bhuyan, B, Bischofberger, M, Bondar, A, Bozek, A, Bračko, M, Browder, TE, Chen, P, Cheon, BG, Chilikin, K, Chistov, R, Cho, K, Choi, SK, Choi, Y, Dalseno, J, Danilov, M, Doleal, Z, Drásal, Z, Eidelman, S, Epifanov, D, Fast, JE, Gaur, V, Gabyshev, N, Garmash, A, Goh, YM, Golob, B, Haba, J, Hara, K, Hara, T, Hayasaka, K, Hayashii, H, Higuchi, T, Horii, Y, Hoshi, Y, Hou, WS, Hsiung, YB, Hyun, HJ, 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, HJ, Kim, HO, Kim, JB, Kim, JH, Kim, KT, Kim, YJ, Kinoshita, K, Ko, BR, Koblitz, S, Kody, P, Korpar, S, Krian, P, Krokovny, P, Kuhr, T, Kumar, R, Kumita, T, Kuzmin, A, Kwon, YJ, Lange, JS, Lee, SH, Li, J, Li, Y, Liu, C, Liu, Y, Liu, ZQ, Liventsev, D, Louvot, R, Matvienko, D, McOnie, S, Miyabayashi, K, Miyata, H, Miyazaki, Y, Mizuk, R, Mohanty, GB, 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, SL, Onuki, Y, Ozaki, H, Pakhlov, P, Pakhlova, G, Park, HK, Park, KS, Pedlar, TK, Pestotnik, R, Petrič, M, Piilonen, LE, Poluektov, A, Röhrken, M, Rozanska, M, Sahoo, H, Sakai, K, Sakai, Y, Sanuki, T, Sato, Y, Schneider, O, Schwanda, C, Schwartz, AJ, Senyo, K, Shebalin, V, Shen, CP, Shibata, TA, Shiu, JG, Shwartz, B, Sibidanov, A, Simon, F, Singh, JB, Smerkol, P, Sohn, YS, 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, SE, Varner, G, Varvell, KE, Vinokurova, A, Vorobyev, V, Wang, CH, Wang, MZ, Wang, P, Watanabe, M, Watanabe, Y, Williams, KM, Won, E, Yabsley, BD, Yamamoto, H, Yamashita, Y, Yamauchi, M, Yusa, Y, Zhang, ZP, Zhilich, V, Zupanc, A & Zyukova, O 2012, 'Precise measurement of the CP violation parameter sin2 1 in B0→(cc̄)K0 decays', Physical Review Letters, vol. 108, no. 17, 171802. https://doi.org/10.1103/PhysRevLett.108.171802
Adachi I, Aihara H, Asner DM, Aulchenko V, Aushev T, Aziz T et al. Precise measurement of the CP violation parameter sin2 1 in B0→(cc̄)K0 decays. Physical Review Letters. 2012 Apr 24;108(17). 171802. 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. ; Doleal, 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. ; Kody, P. ; Korpar, S. ; Krian, 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, Eunil ; 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 sin2 1 in B0→(cc̄)K0 decays. In: Physical Review Letters. 2012 ; Vol. 108, No. 17.
@article{c33643c3a2204a3d81e832e218d740e4,
title = "Precise measurement of the CP violation parameter sin2 1 in B0→(cc̄)K0 decays",
abstract = "We present a precise measurement of the CP violation parameter sin2 1 and the direct CP violation parameter A f using the final data sample of 772×106 BB̄ 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/ψKS0, ψ(2S)KS0, χ c1KS0, or J/ψKL0 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: sin2 1=0.667±0. 023(stat)±0.012(syst) and A f=0.006±0.016(stat) ±0.012(syst).",
author = "I. Adachi and H. Aihara and Asner, {D. M.} and V. Aulchenko and T. Aushev and T. Aziz and Bakich, {A. M.} and A. Bay and V. Bhardwaj and B. Bhuyan and M. Bischofberger and A. Bondar and A. Bozek and M. Bračko and Browder, {T. E.} and P. Chen and Cheon, {B. G.} and K. Chilikin and R. Chistov and K. Cho and Choi, {S. K.} and Y. Choi and J. Dalseno and M. Danilov and Z. Doleal and Z. Dr{\'a}sal and S. Eidelman and D. Epifanov and Fast, {J. E.} and V. Gaur and N. Gabyshev and A. Garmash and Goh, {Y. M.} and B. Golob and J. Haba and K. Hara and T. Hara and K. Hayasaka and H. Hayashii and T. Higuchi and Y. Horii and Y. Hoshi and Hou, {W. S.} and Hsiung, {Y. B.} and Hyun, {H. J.} and T. Iijima and A. Ishikawa and R. Itoh and M. Iwabuchi and Y. Iwasaki and T. Iwashita and T. Julius and P. Kapusta and N. Katayama and T. Kawasaki and H. Kichimi and C. Kiesling 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 K. Kinoshita and Ko, {B. R.} and S. Koblitz and P. Kody and S. Korpar and P. Krian and P. Krokovny and T. Kuhr and R. Kumar and T. Kumita and A. Kuzmin and Kwon, {Y. J.} and Lange, {J. S.} and Lee, {S. H.} and J. Li and Y. Li and C. Liu and Y. Liu and Liu, {Z. Q.} and D. Liventsev and R. Louvot and D. Matvienko and S. McOnie and K. Miyabayashi and H. Miyata and Y. Miyazaki and R. Mizuk and Mohanty, {G. B.} and T. Mori and N. Muramatsu and E. Nakano and M. Nakao and H. Nakazawa and S. Neubauer and S. Nishida and K. Nishimura and O. Nitoh and S. Ogawa and T. Ohshima and S. Okuno and Olsen, {S. L.} and Y. Onuki and H. Ozaki and P. Pakhlov and G. Pakhlova and Park, {H. K.} and Park, {K. S.} and Pedlar, {T. K.} and R. Pestotnik and M. Petrič and Piilonen, {L. E.} and A. Poluektov and M. R{\"o}hrken and M. Rozanska and H. Sahoo and K. Sakai and Y. Sakai and T. Sanuki and Y. Sato and O. Schneider and C. Schwanda and Schwartz, {A. J.} and K. Senyo and V. Shebalin and Shen, {C. P.} and Shibata, {T. A.} and Shiu, {J. G.} and B. Shwartz and A. Sibidanov and F. Simon and Singh, {J. B.} and P. Smerkol and Sohn, {Y. S.} and A. Sokolov and E. Solovieva and S. Stanič and M. Starič and M. Sumihama and K. Sumisawa and T. Sumiyoshi and S. Tanaka and G. Tatishvili and Y. Teramoto and I. Tikhomirov and K. Trabelsi and T. Tsuboyama and M. Uchida and S. Uehara and T. Uglov and Y. Unno and S. Uno and Y. Ushiroda and Vahsen, {S. E.} and G. Varner and Varvell, {K. E.} and A. Vinokurova and V. Vorobyev and Wang, {C. H.} and Wang, {M. Z.} and P. Wang and M. Watanabe and Y. Watanabe and Williams, {K. M.} and Eunil Won and Yabsley, {B. D.} and H. Yamamoto and Y. Yamashita and M. Yamauchi and Y. Yusa and Zhang, {Z. P.} and V. Zhilich and A. Zupanc and O. Zyukova",
year = "2012",
month = "4",
day = "24",
doi = "10.1103/PhysRevLett.108.171802",
language = "English",
volume = "108",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "17",

}

TY - JOUR

T1 - Precise measurement of the CP violation parameter sin2 1 in B0→(cc̄)K0 decays

AU - Adachi, I.

AU - Aihara, H.

AU - Asner, D. M.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Aziz, T.

AU - Bakich, A. M.

AU - Bay, A.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Bischofberger, M.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chen, P.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Chistov, R.

AU - Cho, K.

AU - Choi, S. K.

AU - Choi, Y.

AU - Dalseno, J.

AU - Danilov, M.

AU - Doleal, Z.

AU - Drásal, Z.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Fast, J. E.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Goh, Y. M.

AU - Golob, B.

AU - Haba, J.

AU - Hara, K.

AU - Hara, T.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Higuchi, T.

AU - Horii, Y.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hsiung, Y. B.

AU - Hyun, H. J.

AU - Iijima, T.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwabuchi, M.

AU - Iwasaki, Y.

AU - Iwashita, T.

AU - Julius, T.

AU - Kapusta, P.

AU - Katayama, N.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kiesling, C.

AU - Kim, H. J.

AU - Kim, H. O.

AU - Kim, J. B.

AU - Kim, J. H.

AU - Kim, K. T.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Ko, B. R.

AU - Koblitz, S.

AU - Kody, P.

AU - Korpar, S.

AU - Krian, P.

AU - Krokovny, P.

AU - Kuhr, T.

AU - Kumar, R.

AU - Kumita, T.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lange, J. S.

AU - Lee, S. H.

AU - Li, J.

AU - Li, Y.

AU - Liu, C.

AU - Liu, Y.

AU - Liu, Z. Q.

AU - Liventsev, D.

AU - Louvot, R.

AU - Matvienko, D.

AU - McOnie, S.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Mizuk, R.

AU - Mohanty, G. B.

AU - Mori, T.

AU - Muramatsu, N.

AU - Nakano, E.

AU - Nakao, M.

AU - Nakazawa, H.

AU - Neubauer, S.

AU - Nishida, S.

AU - Nishimura, K.

AU - Nitoh, O.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Onuki, Y.

AU - Ozaki, H.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Park, H. K.

AU - Park, K. S.

AU - Pedlar, T. K.

AU - Pestotnik, R.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - Poluektov, A.

AU - Röhrken, M.

AU - Rozanska, M.

AU - Sahoo, H.

AU - Sakai, K.

AU - Sakai, Y.

AU - Sanuki, T.

AU - Sato, Y.

AU - Schneider, O.

AU - Schwanda, C.

AU - Schwartz, A. J.

AU - Senyo, K.

AU - Shebalin, V.

AU - Shen, C. P.

AU - Shibata, T. A.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Sibidanov, A.

AU - Simon, F.

AU - Singh, J. B.

AU - Smerkol, P.

AU - Sohn, Y. S.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Stanič, S.

AU - Starič, M.

AU - Sumihama, M.

AU - Sumisawa, K.

AU - Sumiyoshi, T.

AU - Tanaka, S.

AU - Tatishvili, G.

AU - Teramoto, Y.

AU - Tikhomirov, I.

AU - Trabelsi, K.

AU - Tsuboyama, T.

AU - Uchida, M.

AU - Uehara, S.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Ushiroda, Y.

AU - Vahsen, S. E.

AU - Varner, G.

AU - Varvell, K. E.

AU - Vinokurova, A.

AU - Vorobyev, V.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Wang, P.

AU - Watanabe, M.

AU - Watanabe, Y.

AU - Williams, K. M.

AU - Won, Eunil

AU - Yabsley, B. D.

AU - Yamamoto, H.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Yusa, Y.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zupanc, A.

AU - Zyukova, O.

PY - 2012/4/24

Y1 - 2012/4/24

N2 - We present a precise measurement of the CP violation parameter sin2 1 and the direct CP violation parameter A f using the final data sample of 772×106 BB̄ 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/ψKS0, ψ(2S)KS0, χ c1KS0, or J/ψKL0 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: sin2 1=0.667±0. 023(stat)±0.012(syst) and A f=0.006±0.016(stat) ±0.012(syst).

AB - We present a precise measurement of the CP violation parameter sin2 1 and the direct CP violation parameter A f using the final data sample of 772×106 BB̄ 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/ψKS0, ψ(2S)KS0, χ c1KS0, or J/ψKL0 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: sin2 1=0.667±0. 023(stat)±0.012(syst) and A f=0.006±0.016(stat) ±0.012(syst).

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U2 - 10.1103/PhysRevLett.108.171802

DO - 10.1103/PhysRevLett.108.171802

M3 - Article

VL - 108

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 17

M1 - 171802

ER -