Improved measurement of time-dependent CP violation in B0→J/ψπ0 decays

S. E. Lee, K. Miyabayashi, H. Aihara, T. Aushev, T. Aziz, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, K. Belous, V. Bhardwaj, U. Bitenc, S. Blyth, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, P. Chang, A. Chen, K. F. Chen & 128 others B. G. Cheon, R. Chistov, I. S. Cho, S. K. Choi, Y. Choi, J. Dalseno, M. Dash, S. Eidelman, D. Epifanov, N. Gabyshev, H. Ha, J. Haba, K. Hara, T. Hara, H. Hayashii, M. Hazumi, D. Heffernan, T. Higuchi, Y. Hoshi, W. S. Hou, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, D. H. Kah, J. H. Kang, S. U. Kataoka, H. Kawai, T. Kawasaki, H. J. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Križan, R. Kumar, C. C. Kuo, A. Kuzmin, Y. J. Kwon, J. S. Lee, M. J. Lee, T. Lesiak, S. W. Lin, Y. Liu, D. Liventsev, S. McOnie, T. Medvedeva, W. Mitaroff, H. Miyata, R. Mizuk, T. Mori, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, A. J. Schwartz, A. Sekiya, K. Senyo, M. Shapkin, C. P. Shen, H. Shibuya, S. Shinomiya, J. G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, S. Stanič, M. Starič, K. Sumisawa, T. Sumiyoshi, S. Suzuki, O. Tajima, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Ushiroda, Y. Usov, G. Varner, K. E. Varvell, S. Villa, C. C. Wang, C. H. Wang, P. Wang, X. L. Wang, Y. Watanabe, Eunil Won, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C. Z. Yuan, Y. Yusa, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

We report improved measurements of time-dependent CP violation parameters for B0(B̄0)→J/ψπ0 decay. This analysis is based on 535×106 BB̄ pairs accumulated at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. From the distribution of proper time intervals between the two B decays, we obtain the following CP violation parameters SJ/ψπ0=-0.65±0.21(stat) ±0.05(syst)andAJ/ψπ0=+0.08±0.16(stat)±0.05(syst), which are consistent with standard model expectations.

Original languageEnglish
Article number071101
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume77
Issue number7
DOIs
Publication statusPublished - 2008 Apr 1

Fingerprint

CP Violation
CP violation
Decay
decay
Standard Model
Detector
intervals
Interval
detectors
Energy
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Mathematical Physics

Cite this

Lee, S. E., Miyabayashi, K., Aihara, H., Aushev, T., Aziz, T., Bakich, A. M., ... Zupanc, A. (2008). Improved measurement of time-dependent CP violation in B0→J/ψπ0 decays. Physical Review D - Particles, Fields, Gravitation and Cosmology, 77(7), [071101]. https://doi.org/10.1103/PhysRevD.77.071101

Improved measurement of time-dependent CP violation in B0→J/ψπ0 decays. / Lee, S. E.; Miyabayashi, K.; Aihara, H.; Aushev, T.; Aziz, T.; Bakich, A. M.; Balagura, V.; Barberio, E.; Bay, A.; Belous, K.; Bhardwaj, V.; Bitenc, U.; Blyth, S.; Bondar, A.; Bozek, A.; Bračko, M.; Browder, T. E.; Chang, P.; Chen, A.; Chen, K. F.; Cheon, B. G.; Chistov, R.; Cho, I. S.; Choi, S. K.; Choi, Y.; Dalseno, J.; Dash, M.; Eidelman, S.; Epifanov, D.; Gabyshev, N.; Ha, H.; Haba, J.; Hara, K.; Hara, T.; Hayashii, H.; Hazumi, M.; Heffernan, D.; Higuchi, T.; Hoshi, Y.; Hou, W. S.; Hyun, H. J.; Iijima, T.; Inami, K.; Ishikawa, A.; Ishino, H.; Itoh, R.; Iwasaki, M.; Kah, D. H.; Kang, J. H.; Kataoka, S. U.; Kawai, H.; Kawasaki, T.; Kim, H. J.; Kim, S. K.; Kim, Y. J.; Kinoshita, K.; Korpar, S.; Križan, P.; Kumar, R.; Kuo, C. C.; Kuzmin, A.; Kwon, Y. J.; Lee, J. S.; Lee, M. J.; Lesiak, T.; Lin, S. W.; Liu, Y.; Liventsev, D.; McOnie, S.; Medvedeva, T.; Mitaroff, W.; Miyata, H.; Mizuk, R.; Mori, T.; Nakano, E.; Nakao, M.; Nakazawa, H.; Natkaniec, Z.; Nishida, S.; Nitoh, O.; Noguchi, S.; Nozaki, T.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Ozaki, H.; Pakhlov, P.; Pakhlova, G.; Park, H.; Park, K. S.; Pestotnik, R.; Piilonen, L. E.; Sahoo, H.; Sakai, Y.; Schneider, O.; Schwartz, A. J.; Sekiya, A.; Senyo, K.; Shapkin, M.; Shen, C. P.; Shibuya, H.; Shinomiya, S.; Shiu, J. G.; Shwartz, B.; Singh, J. B.; Sokolov, A.; Somov, A.; Stanič, S.; Starič, M.; Sumisawa, K.; Sumiyoshi, T.; Suzuki, S.; Tajima, O.; Takasaki, F.; Tamai, K.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Tikhomirov, I.; Trabelsi, K.; Uehara, S.; Ueno, K.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Ushiroda, Y.; Usov, Y.; Varner, G.; Varvell, K. E.; Villa, S.; Wang, C. C.; Wang, C. H.; Wang, P.; Wang, X. L.; Watanabe, Y.; Won, Eunil; Yamaguchi, A.; Yamashita, Y.; Yamauchi, M.; Yuan, C. Z.; Yusa, Y.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 77, No. 7, 071101, 01.04.2008.

Research output: Contribution to journalArticle

Lee, SE, Miyabayashi, K, Aihara, H, Aushev, T, Aziz, T, Bakich, AM, Balagura, V, Barberio, E, Bay, A, Belous, K, Bhardwaj, V, Bitenc, U, Blyth, S, Bondar, A, Bozek, A, Bračko, M, Browder, TE, Chang, P, Chen, A, Chen, KF, Cheon, BG, Chistov, R, Cho, IS, Choi, SK, Choi, Y, Dalseno, J, Dash, M, Eidelman, S, Epifanov, D, Gabyshev, N, Ha, H, Haba, J, Hara, K, Hara, T, Hayashii, H, Hazumi, M, Heffernan, D, Higuchi, T, Hoshi, Y, Hou, WS, Hyun, HJ, Iijima, T, Inami, K, Ishikawa, A, Ishino, H, Itoh, R, Iwasaki, M, Kah, DH, Kang, JH, Kataoka, SU, Kawai, H, Kawasaki, T, Kim, HJ, Kim, SK, Kim, YJ, Kinoshita, K, Korpar, S, Križan, P, Kumar, R, Kuo, CC, Kuzmin, A, Kwon, YJ, Lee, JS, Lee, MJ, Lesiak, T, Lin, SW, Liu, Y, Liventsev, D, McOnie, S, Medvedeva, T, Mitaroff, W, Miyata, H, Mizuk, R, Mori, T, Nakano, E, Nakao, M, Nakazawa, H, Natkaniec, Z, Nishida, S, Nitoh, O, Noguchi, S, Nozaki, T, Ogawa, S, Ohshima, T, Okuno, S, Olsen, SL, Ozaki, H, Pakhlov, P, Pakhlova, G, Park, H, Park, KS, Pestotnik, R, Piilonen, LE, Sahoo, H, Sakai, Y, Schneider, O, Schwartz, AJ, Sekiya, A, Senyo, K, Shapkin, M, Shen, CP, Shibuya, H, Shinomiya, S, Shiu, JG, Shwartz, B, Singh, JB, Sokolov, A, Somov, A, Stanič, S, Starič, M, Sumisawa, K, Sumiyoshi, T, Suzuki, S, Tajima, O, Takasaki, F, Tamai, K, Tanaka, M, Taylor, GN, Teramoto, Y, Tikhomirov, I, Trabelsi, K, Uehara, S, Ueno, K, Uglov, T, Unno, Y, Uno, S, Urquijo, P, Ushiroda, Y, Usov, Y, Varner, G, Varvell, KE, Villa, S, Wang, CC, Wang, CH, Wang, P, Wang, XL, Watanabe, Y, Won, E, Yamaguchi, A, Yamashita, Y, Yamauchi, M, Yuan, CZ, Yusa, Y, Zhang, CC, Zhang, ZP, Zhilich, V, Zhulanov, V & Zupanc, A 2008, 'Improved measurement of time-dependent CP violation in B0→J/ψπ0 decays', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 77, no. 7, 071101. https://doi.org/10.1103/PhysRevD.77.071101
Lee, S. E. ; Miyabayashi, K. ; Aihara, H. ; Aushev, T. ; Aziz, T. ; Bakich, A. M. ; Balagura, V. ; Barberio, E. ; Bay, A. ; Belous, K. ; Bhardwaj, V. ; Bitenc, U. ; Blyth, S. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Browder, T. E. ; Chang, P. ; Chen, A. ; Chen, K. F. ; Cheon, B. G. ; Chistov, R. ; Cho, I. S. ; Choi, S. K. ; Choi, Y. ; Dalseno, J. ; Dash, M. ; Eidelman, S. ; Epifanov, D. ; Gabyshev, N. ; Ha, H. ; Haba, J. ; Hara, K. ; Hara, T. ; Hayashii, H. ; Hazumi, M. ; Heffernan, D. ; Higuchi, T. ; Hoshi, Y. ; Hou, W. S. ; Hyun, H. J. ; Iijima, T. ; Inami, K. ; Ishikawa, A. ; Ishino, H. ; Itoh, R. ; Iwasaki, M. ; Kah, D. H. ; Kang, J. H. ; Kataoka, S. U. ; Kawai, H. ; Kawasaki, T. ; Kim, H. J. ; Kim, S. K. ; Kim, Y. J. ; Kinoshita, K. ; Korpar, S. ; Križan, P. ; Kumar, R. ; Kuo, C. C. ; Kuzmin, A. ; Kwon, Y. J. ; Lee, J. S. ; Lee, M. J. ; Lesiak, T. ; Lin, S. W. ; Liu, Y. ; Liventsev, D. ; McOnie, S. ; Medvedeva, T. ; Mitaroff, W. ; Miyata, H. ; Mizuk, R. ; Mori, T. ; Nakano, E. ; Nakao, M. ; Nakazawa, H. ; Natkaniec, Z. ; Nishida, S. ; Nitoh, O. ; Noguchi, S. ; Nozaki, T. ; Ogawa, S. ; Ohshima, T. ; Okuno, S. ; Olsen, S. L. ; Ozaki, H. ; Pakhlov, P. ; Pakhlova, G. ; Park, H. ; Park, K. S. ; Pestotnik, R. ; Piilonen, L. E. ; Sahoo, H. ; Sakai, Y. ; Schneider, O. ; Schwartz, A. J. ; Sekiya, A. ; Senyo, K. ; Shapkin, M. ; Shen, C. P. ; Shibuya, H. ; Shinomiya, S. ; Shiu, J. G. ; Shwartz, B. ; Singh, J. B. ; Sokolov, A. ; Somov, A. ; Stanič, S. ; Starič, M. ; Sumisawa, K. ; Sumiyoshi, T. ; Suzuki, S. ; Tajima, O. ; Takasaki, F. ; Tamai, K. ; Tanaka, M. ; Taylor, G. N. ; Teramoto, Y. ; Tikhomirov, I. ; Trabelsi, K. ; Uehara, S. ; Ueno, K. ; Uglov, T. ; Unno, Y. ; Uno, S. ; Urquijo, P. ; Ushiroda, Y. ; Usov, Y. ; Varner, G. ; Varvell, K. E. ; Villa, S. ; Wang, C. C. ; Wang, C. H. ; Wang, P. ; Wang, X. L. ; Watanabe, Y. ; Won, Eunil ; Yamaguchi, A. ; Yamashita, Y. ; Yamauchi, M. ; Yuan, C. Z. ; Yusa, Y. ; Zhang, C. C. ; Zhang, Z. P. ; Zhilich, V. ; Zhulanov, V. ; Zupanc, A. / Improved measurement of time-dependent CP violation in B0→J/ψπ0 decays. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2008 ; Vol. 77, No. 7.
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title = "Improved measurement of time-dependent CP violation in B0→J/ψπ0 decays",
abstract = "We report improved measurements of time-dependent CP violation parameters for B0(B̄0)→J/ψπ0 decay. This analysis is based on 535×106 BB̄ pairs accumulated at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. From the distribution of proper time intervals between the two B decays, we obtain the following CP violation parameters SJ/ψπ0=-0.65±0.21(stat) ±0.05(syst)andAJ/ψπ0=+0.08±0.16(stat)±0.05(syst), which are consistent with standard model expectations.",
author = "Lee, {S. E.} and K. Miyabayashi and H. Aihara and T. Aushev and T. Aziz and Bakich, {A. M.} and V. Balagura and E. Barberio and A. Bay and K. Belous and V. Bhardwaj and U. Bitenc and S. Blyth and A. Bondar and A. Bozek and M. Bračko and Browder, {T. E.} and P. Chang and A. Chen and Chen, {K. F.} and Cheon, {B. G.} and R. Chistov and Cho, {I. S.} and Choi, {S. K.} and Y. Choi and J. Dalseno and M. Dash and S. Eidelman and D. Epifanov and N. Gabyshev and H. Ha and J. Haba and K. Hara and T. Hara and H. Hayashii and M. Hazumi and D. Heffernan and T. Higuchi and Y. Hoshi and Hou, {W. S.} and Hyun, {H. J.} and T. Iijima and K. Inami and A. Ishikawa and H. Ishino and R. Itoh and M. Iwasaki and Kah, {D. H.} and Kang, {J. H.} and Kataoka, {S. U.} and H. Kawai and T. Kawasaki and Kim, {H. J.} and Kim, {S. K.} and Kim, {Y. J.} and K. Kinoshita and S. Korpar and P. Križan and R. Kumar and Kuo, {C. C.} and A. Kuzmin and Kwon, {Y. J.} and Lee, {J. S.} and Lee, {M. J.} and T. Lesiak and Lin, {S. W.} and Y. Liu and D. Liventsev and S. McOnie and T. Medvedeva and W. Mitaroff and H. Miyata and R. Mizuk and T. Mori and E. Nakano and M. Nakao and H. Nakazawa and Z. Natkaniec and S. Nishida and O. Nitoh and S. Noguchi and T. Nozaki and S. Ogawa and T. Ohshima and S. Okuno and Olsen, {S. L.} and H. Ozaki and P. Pakhlov and G. Pakhlova and H. Park and Park, {K. S.} and R. Pestotnik and Piilonen, {L. E.} and H. Sahoo and Y. Sakai and O. Schneider and Schwartz, {A. J.} and A. Sekiya and K. Senyo and M. Shapkin and Shen, {C. P.} and H. Shibuya and S. Shinomiya and Shiu, {J. G.} and B. Shwartz and Singh, {J. B.} and A. Sokolov and A. Somov and S. Stanič and M. Starič and K. Sumisawa and T. Sumiyoshi and S. Suzuki and O. Tajima and F. Takasaki and K. Tamai and M. Tanaka and Taylor, {G. N.} and Y. Teramoto and I. Tikhomirov and K. Trabelsi and S. Uehara and K. Ueno and T. Uglov and Y. Unno and S. Uno and P. Urquijo and Y. Ushiroda and Y. Usov and G. Varner and Varvell, {K. E.} and S. Villa and Wang, {C. C.} and Wang, {C. H.} and P. Wang and Wang, {X. L.} and Y. Watanabe and Eunil Won and A. Yamaguchi and Y. Yamashita and M. Yamauchi and Yuan, {C. Z.} and Y. Yusa and Zhang, {C. C.} and Zhang, {Z. P.} and V. Zhilich and V. Zhulanov and A. Zupanc",
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TY - JOUR

T1 - Improved measurement of time-dependent CP violation in B0→J/ψπ0 decays

AU - Lee, S. E.

AU - Miyabayashi, K.

AU - Aihara, H.

AU - Aushev, T.

AU - Aziz, T.

AU - Bakich, A. M.

AU - Balagura, V.

AU - Barberio, E.

AU - Bay, A.

AU - Belous, K.

AU - Bhardwaj, V.

AU - Bitenc, U.

AU - Blyth, S.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chang, P.

AU - Chen, A.

AU - Chen, K. F.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Cho, I. S.

AU - Choi, S. K.

AU - Choi, Y.

AU - Dalseno, J.

AU - Dash, M.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Gabyshev, N.

AU - Ha, H.

AU - Haba, J.

AU - Hara, K.

AU - Hara, T.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Heffernan, D.

AU - Higuchi, T.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hyun, H. J.

AU - Iijima, T.

AU - Inami, K.

AU - Ishikawa, A.

AU - Ishino, H.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Kah, D. H.

AU - Kang, J. H.

AU - Kataoka, S. U.

AU - Kawai, H.

AU - Kawasaki, T.

AU - Kim, H. J.

AU - Kim, S. K.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Korpar, S.

AU - Križan, P.

AU - Kumar, R.

AU - Kuo, C. C.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lee, J. S.

AU - Lee, M. J.

AU - Lesiak, T.

AU - Lin, S. W.

AU - Liu, Y.

AU - Liventsev, D.

AU - McOnie, S.

AU - Medvedeva, T.

AU - Mitaroff, W.

AU - Miyata, H.

AU - Mizuk, R.

AU - Mori, T.

AU - Nakano, E.

AU - Nakao, M.

AU - Nakazawa, H.

AU - Natkaniec, Z.

AU - Nishida, S.

AU - Nitoh, O.

AU - Noguchi, S.

AU - Nozaki, T.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Ozaki, H.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Park, H.

AU - Park, K. S.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Sahoo, H.

AU - Sakai, Y.

AU - Schneider, O.

AU - Schwartz, A. J.

AU - Sekiya, A.

AU - Senyo, K.

AU - Shapkin, M.

AU - Shen, C. P.

AU - Shibuya, H.

AU - Shinomiya, S.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Singh, J. B.

AU - Sokolov, A.

AU - Somov, A.

AU - Stanič, S.

AU - Starič, M.

AU - Sumisawa, K.

AU - Sumiyoshi, T.

AU - Suzuki, S.

AU - Tajima, O.

AU - Takasaki, F.

AU - Tamai, K.

AU - Tanaka, M.

AU - Taylor, G. N.

AU - Teramoto, Y.

AU - Tikhomirov, I.

AU - Trabelsi, K.

AU - Uehara, S.

AU - Ueno, K.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Urquijo, P.

AU - Ushiroda, Y.

AU - Usov, Y.

AU - Varner, G.

AU - Varvell, K. E.

AU - Villa, S.

AU - Wang, C. C.

AU - Wang, C. H.

AU - Wang, P.

AU - Wang, X. L.

AU - Watanabe, Y.

AU - Won, Eunil

AU - Yamaguchi, A.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Yuan, C. Z.

AU - Yusa, Y.

AU - Zhang, C. C.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhulanov, V.

AU - Zupanc, A.

PY - 2008/4/1

Y1 - 2008/4/1

N2 - We report improved measurements of time-dependent CP violation parameters for B0(B̄0)→J/ψπ0 decay. This analysis is based on 535×106 BB̄ pairs accumulated at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. From the distribution of proper time intervals between the two B decays, we obtain the following CP violation parameters SJ/ψπ0=-0.65±0.21(stat) ±0.05(syst)andAJ/ψπ0=+0.08±0.16(stat)±0.05(syst), which are consistent with standard model expectations.

AB - We report improved measurements of time-dependent CP violation parameters for B0(B̄0)→J/ψπ0 decay. This analysis is based on 535×106 BB̄ pairs accumulated at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. From the distribution of proper time intervals between the two B decays, we obtain the following CP violation parameters SJ/ψπ0=-0.65±0.21(stat) ±0.05(syst)andAJ/ψπ0=+0.08±0.16(stat)±0.05(syst), which are consistent with standard model expectations.

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U2 - 10.1103/PhysRevD.77.071101

DO - 10.1103/PhysRevD.77.071101

M3 - Article

VL - 77

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 0556-2821

IS - 7

M1 - 071101

ER -