Measurements of branching fractions and decay amplitudes in B → J / ψ K* decays

K. Abe; K. Abe; T. Abe; I. Adachi; B. S. Ahn; H. Aihara; M. Akatsu; Y. Asano; T. Aso; V. Aulchenko; T. Aushev; A. M. Bakich; Y. Ban; E. Banas; A. Bay; P. K. Behera; A. Bondar; A. Bozek; T. E. Browder; B. C.K. Casey; Y. Chao; B. G. Cheon; R. Chistov; S. K. Choig; Y. Choi; M. Danilov; L. Y. Dong; S. Eidelman; V. Eiges; Y. Enari; F. Fang; C. Fukunaga; T. Gershon; K. Gotow; R. Guo; J. Haba; K. Hanagaki; T. Hara; H. Hayashii; M. Hazumi; E. M. Heenan; I. Higuchi; T. Higuchi; T. Hokuue; Y. Hoshi; S. R. Hou; W. S. Hou; H. C. Huang; T. Igaki; T. Iijima; K. Inami; A. Ishikawa; H. Ishino; R. Itoh; M. Iwamoto; H. Iwasaki; Y. Iwasaki; P. Jalocha; J. H. Kang; J. S. Kang; P. Kapusta; S. U. Kataoka; N. Katayama; H. Kawai; Y. Kawakami; N. Kawamura; T. Kawasaki; H. Kichimi; D. W. Kim; H. Kim; H. J. Kim; H. O. Kim; H. Kim; K. Kinoshita; S. Korpar; P. Križan; P. Krokovny; R. Kulasiri; S. Kumar; Y. J. Kwon; J. S. Lange; G. Leder; S. H. Lee; D. Liventsev; J. MacNaughton; G. Majumder; T. Matsuishi; S. Matsumoto; T. Matsumoto; W. Mitaroff; K. Miyabayashi; Y. Miyabayashi; H. Miyake; H. Miyata; G. R. Moloney; S. Mori; T. Mori; T. Nagamine; Y. Nagasaka; T. Nakadaira; E. Nakano; M. Nakao; J. W. Nam; Z. Natkaniec; S. Nishida; O. Nitoh; T. Nozaki; S. Ogawa; F. Ohno; T. Ohshima; T. Okabe; S. Okuno; S. L. Olsen; W. Ostrowicz; H. Ozaki; P. Pakhlov; H. Palka; C. W. Park; H. Park; K. S. Park; L. E. Piilonen; M. Rozanska; K. Rybicki; H. Sagawa; S. Saitoh; Y. Sakai; M. Satapathy; A. Satpathy; O. Schneider; S. Schrenk; S. Semenov; K. Senyo; R. Seuster; M. E. Sevior; H. Shibuya; B. Shwartz; V. Sidorov; J. B. Singh; S. Stanic; A. Sugi; A. Sugiyama; K. Sumisawa; T. Sumiyoshi; K. Suzuki; S. Suzuki; S. Y. Suzuki; T. Takahashi; F. Takasaki; N. Tamura; M. Tanaka; G. N. Taylor; Y. Teramoto; S. Tokuda; M. Tomoto; T. Tomura; S. N. Tovey; K. Trabelsi; T. Tsuboyama; T. Tsukamoto; S. Uehara; S. Uno; S. E. Vahsen; G. Varner; K. E. Varvell; C. H. Wang; J. G. Wang; M. Z. Wang; Y. Watanabe; E. Won; B. D. Yabsley; Y. Yamada; A. Yamaguchi; Y. Yamashita; M. Yamauchi; M. Yokoyama; K. Yoshida; Y. Yuan; Y. Yusa; J. Zhang; Z. P. Zhang; V. Zhilich; Z. M. Zhu; D. Žontar

doi:10.1016/S0370-2693(02)01969-X

Measurements of branching fractions and decay amplitudes in B → J / ψ K* decays

K. Abe, K. Abe, T. Abe, I. Adachi, B. S. Ahn, H. Aihara, M. Akatsu, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, A. M. Bakich, Y. Ban, E. Banas, A. Bay, P. K. Behera, A. Bondar, A. Bozek, T. E. Browder, B. C.K. CaseyY. Chao, B. G. Cheon, R. Chistov, S. K. Choig, Y. Choi, M. Danilov, L. Y. Dong, S. Eidelman, V. Eiges, Y. Enari, F. Fang, C. Fukunaga, T. Gershon, K. Gotow, R. Guo, J. Haba, K. Hanagaki, T. Hara, H. Hayashii, M. Hazumi, E. M. Heenan, I. Higuchi, T. Higuchi, T. Hokuue, Y. Hoshi, S. R. Hou, W. S. Hou, H. C. Huang, T. Igaki, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwamoto, H. Iwasaki, Y. Iwasaki, P. Jalocha, J. H. Kang, J. S. Kang, P. Kapusta, S. U. Kataoka, N. Katayama, H. Kawai, Y. Kawakami, N. Kawamura, T. Kawasaki, H. Kichimi, D. W. Kim, H. Kim, H. J. Kim, H. O. Kim, H. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, S. Kumar, Y. J. Kwon, J. S. Lange, G. Leder, S. H. Lee, D. Liventsev, J. MacNaughton, G. Majumder, T. Matsuishi, S. Matsumoto, T. Matsumoto, W. Mitaroff, K. Miyabayashi, Y. Miyabayashi, H. Miyake, H. Miyata, G. R. Moloney, S. Mori, T. Mori, T. Nagamine, Y. Nagasaka, T. Nakadaira, E. Nakano, M. Nakao, J. W. Nam, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, F. Ohno, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, H. Park, K. S. Park, L. E. Piilonen, M. Rozanska, K. Rybicki, H. Sagawa, S. Saitoh, Y. Sakai, M. Satapathy, A. Satpathy, O. Schneider, S. Schrenk, S. Semenov, K. Senyo, R. Seuster, M. E. Sevior, H. Shibuya, B. Shwartz, V. Sidorov, J. B. Singh, S. Stanic, A. Sugi, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, K. Suzuki, S. Suzuki, S. Y. Suzuki, T. Takahashi, F. Takasaki, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, S. Tokuda, M. Tomoto, T. Tomura, S. N. Tovey, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, S. Uno, S. E. Vahsen, G. Varner, K. E. Varvell, C. H. Wang, J. G. Wang, M. Z. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, Y. Yamashita, M. Yamauchi, M. Yokoyama, K. Yoshida, Y. Yuan, Y. Yusa, J. Zhang, Z. P. Zhang, V. Zhilich, Z. M. Zhu, D. Žontar

Research output: Contribution to journal › Article › peer-review

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Abstract

The branching fractions and the decay amplitudes of B → J / ψ K* decays are measured in a 29.4 fb^-1 data sample collected with the Belle detector at the KEKB electron-positron collider. The decay amplitudes of helicity states of the J / ψ K* system are determined from the full angular distribution of the final state particles in the transversity basis. The branching fractions are measured to be (1.29 ± 0.05 ± 0.13) × 10^-3 for neutral mesons and (1.28 ± 0.07 ± 0.14) × 10^-3 for charged mesons. The measured longitudinal and transverse (perpendicular to the transversity plane) amplitudes are |A₀|² = 0.62 ± 0.02 ± 0.03 and |A⊥|² = 0.19 ± 0.02 ± 0.03, respectively. The value of |A⊥|² shows that the CP even component dominates in the B⁰ → J/ψ K*⁰(K_Sπ⁰) decay.

Original language	English
Pages (from-to)	11-20
Number of pages	10
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	538
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(02)01969-X
Publication status	Published - Jun 27 2002
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/S0370-2693(02)01969-X

Cite this

Abe, K., Abe, K., Abe, T., Adachi, I., Ahn, B. S., Aihara, H., Akatsu, M., Asano, Y., Aso, T., Aulchenko, V., Aushev, T., Bakich, A. M., Ban, Y., Banas, E., Bay, A., Behera, P. K., Bondar, A., Bozek, A., Browder, T. E., ... Žontar, D. (2002). Measurements of branching fractions and decay amplitudes in B → J / ψ K* decays. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 538(1-2), 11-20. https://doi.org/10.1016/S0370-2693(02)01969-X

Abe, K, Abe, K, Abe, T, Adachi, I, Ahn, BS, Aihara, H, Akatsu, M, Asano, Y, Aso, T, Aulchenko, V, Aushev, T, Bakich, AM, Ban, Y, Banas, E, Bay, A, Behera, PK, Bondar, A, Bozek, A, Browder, TE, Casey, BCK, Chao, Y, Cheon, BG, Chistov, R, Choig, SK, Choi, Y, Danilov, M, Dong, LY, Eidelman, S, Eiges, V, Enari, Y, Fang, F, Fukunaga, C, Gershon, T, Gotow, K, Guo, R, Haba, J, Hanagaki, K, Hara, T, Hayashii, H, Hazumi, M, Heenan, EM, Higuchi, I, Higuchi, T, Hokuue, T, Hoshi, Y, Hou, SR, Hou, WS, Huang, HC, Igaki, T, Iijima, T, Inami, K, Ishikawa, A, Ishino, H, Itoh, R, Iwamoto, M, Iwasaki, H, Iwasaki, Y, Jalocha, P, Kang, JH, Kang, JS, Kapusta, P, Kataoka, SU, Katayama, N, Kawai, H, Kawakami, Y, Kawamura, N, Kawasaki, T, Kichimi, H, Kim, DW, Kim, H, Kim, HJ, Kim, HO, Kim, H, Kinoshita, K, Korpar, S, Križan, P, Krokovny, P, Kulasiri, R, Kumar, S, Kwon, YJ, Lange, JS, Leder, G, Lee, SH, Liventsev, D, MacNaughton, J, Majumder, G, Matsuishi, T, Matsumoto, S, Matsumoto, T, Mitaroff, W, Miyabayashi, K, Miyabayashi, Y, Miyake, H, Miyata, H, Moloney, GR, Mori, S, Mori, T, Nagamine, T, Nagasaka, Y, Nakadaira, T, Nakano, E, Nakao, M, Nam, JW, Natkaniec, Z, Nishida, S, Nitoh, O, Nozaki, T, Ogawa, S, Ohno, F, Ohshima, T, Okabe, T, Okuno, S, Olsen, SL, Ostrowicz, W, Ozaki, H, Pakhlov, P, Palka, H, Park, CW, Park, H, Park, KS, Piilonen, LE, Rozanska, M, Rybicki, K, Sagawa, H, Saitoh, S, Sakai, Y, Satapathy, M, Satpathy, A, Schneider, O, Schrenk, S, Semenov, S, Senyo, K, Seuster, R, Sevior, ME, Shibuya, H, Shwartz, B, Sidorov, V, Singh, JB, Stanic, S, Sugi, A, Sugiyama, A, Sumisawa, K, Sumiyoshi, T, Suzuki, K, Suzuki, S, Suzuki, SY, Takahashi, T, Takasaki, F, Tamura, N, Tanaka, M, Taylor, GN, Teramoto, Y, Tokuda, S, Tomoto, M, Tomura, T, Tovey, SN, Trabelsi, K, Tsuboyama, T, Tsukamoto, T, Uehara, S, Uno, S, Vahsen, SE, Varner, G, Varvell, KE, Wang, CH, Wang, JG, Wang, MZ, Watanabe, Y, Won, E, Yabsley, BD, Yamada, Y, Yamaguchi, A, Yamashita, Y, Yamauchi, M, Yokoyama, M, Yoshida, K, Yuan, Y, Yusa, Y, Zhang, J, Zhang, ZP, Zhilich, V, Zhu, ZM & Žontar, D 2002, 'Measurements of branching fractions and decay amplitudes in B → J / ψ K* decays', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 538, no. 1-2, pp. 11-20. https://doi.org/10.1016/S0370-2693(02)01969-X

@article{b7af74a60189499a857b28942d93fe94,

title = "Measurements of branching fractions and decay amplitudes in B → J / ψ K* decays",

abstract = "The branching fractions and the decay amplitudes of B → J / ψ K* decays are measured in a 29.4 fb-1 data sample collected with the Belle detector at the KEKB electron-positron collider. The decay amplitudes of helicity states of the J / ψ K* system are determined from the full angular distribution of the final state particles in the transversity basis. The branching fractions are measured to be (1.29 ± 0.05 ± 0.13) × 10-3 for neutral mesons and (1.28 ± 0.07 ± 0.14) × 10-3 for charged mesons. The measured longitudinal and transverse (perpendicular to the transversity plane) amplitudes are |A0|2 = 0.62 ± 0.02 ± 0.03 and |A⊥|2 = 0.19 ± 0.02 ± 0.03, respectively. The value of |A⊥|2 shows that the CP even component dominates in the B0 → J/ψ K*0(KSπ0) decay.",

author = "K. Abe and K. Abe and T. Abe and I. Adachi and Ahn, {B. S.} and H. Aihara and M. Akatsu and Y. Asano and T. Aso and V. Aulchenko and T. Aushev and Bakich, {A. M.} and Y. Ban and E. Banas and A. Bay and Behera, {P. K.} and A. Bondar and A. Bozek and Browder, {T. E.} and Casey, {B. C.K.} and Y. Chao and Cheon, {B. G.} and R. Chistov and Choig, {S. K.} and Y. Choi and M. Danilov and Dong, {L. Y.} and S. Eidelman and V. Eiges and Y. Enari and F. Fang and C. Fukunaga and T. Gershon and K. Gotow and R. Guo and J. Haba and K. Hanagaki and T. Hara and H. Hayashii and M. Hazumi and Heenan, {E. M.} and I. Higuchi and T. Higuchi and T. Hokuue and Y. Hoshi and Hou, {S. R.} and Hou, {W. S.} and Huang, {H. C.} and T. Igaki and T. Iijima and K. Inami and A. Ishikawa and H. Ishino and R. Itoh and M. Iwamoto and H. Iwasaki and Y. Iwasaki and P. Jalocha and Kang, {J. H.} and Kang, {J. S.} and P. Kapusta and Kataoka, {S. U.} and N. Katayama and H. Kawai and Y. Kawakami and N. Kawamura and T. Kawasaki and H. Kichimi and Kim, {D. W.} and H. Kim and Kim, {H. J.} and Kim, {H. O.} and H. Kim and K. Kinoshita and S. Korpar and P. Kri{\v z}an and P. Krokovny and R. Kulasiri and S. Kumar and Kwon, {Y. J.} and Lange, {J. S.} and G. Leder and Lee, {S. H.} and D. Liventsev and J. MacNaughton and G. Majumder and T. Matsuishi and S. Matsumoto and T. Matsumoto and W. Mitaroff and K. Miyabayashi and Y. Miyabayashi and H. Miyake and H. Miyata and Moloney, {G. R.} and S. Mori and T. Mori and T. Nagamine and Y. Nagasaka and T. Nakadaira and E. Nakano and M. Nakao and Nam, {J. W.} and Z. Natkaniec and S. Nishida and O. Nitoh and T. Nozaki and S. Ogawa and F. Ohno and T. Ohshima and T. Okabe and S. Okuno and Olsen, {S. L.} and W. Ostrowicz and H. Ozaki and P. Pakhlov and H. Palka and Park, {C. W.} and H. Park and Park, {K. S.} and Piilonen, {L. E.} and M. Rozanska and K. Rybicki and H. Sagawa and S. Saitoh and Y. Sakai and M. Satapathy and A. Satpathy and O. Schneider and S. Schrenk and S. Semenov and K. Senyo and R. Seuster and Sevior, {M. E.} and H. Shibuya and B. Shwartz and V. Sidorov and Singh, {J. B.} and S. Stanic and A. Sugi and A. Sugiyama and K. Sumisawa and T. Sumiyoshi and K. Suzuki and S. Suzuki and Suzuki, {S. Y.} and T. Takahashi and F. Takasaki and N. Tamura and M. Tanaka and Taylor, {G. N.} and Y. Teramoto and S. Tokuda and M. Tomoto and T. Tomura and Tovey, {S. N.} and K. Trabelsi and T. Tsuboyama and T. Tsukamoto and S. Uehara and S. Uno and Vahsen, {S. E.} and G. Varner and Varvell, {K. E.} and Wang, {C. H.} and Wang, {J. G.} and Wang, {M. Z.} and Y. Watanabe and E. Won and Yabsley, {B. D.} and Y. Yamada and A. Yamaguchi and Y. Yamashita and M. Yamauchi and M. Yokoyama and K. Yoshida and Y. Yuan and Y. Yusa and J. Zhang and Zhang, {Z. P.} and V. Zhilich and Zhu, {Z. M.} and D. {\v Z}ontar",

note = "Funding Information: We wish to thank the KEKB accelerator group for the excellent operation of the KEKB accelerator. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology of Japan and the Japan Society for the Promotion of Science; the Australian Research Council and the Australian Department of Industry, Science and Resources; the National Science Foundation of China under contract No. 10175071; the Department of Science and Technology of India; the BK21 program of the Ministry of Education of Korea and the CHEP SRC program of the Korea Science and Engineering Foundation; the Polish State Committee for Scientific Research under contract No. 2P03B 17017; the Ministry of Science and Technology of the Russian Federation; the Ministry of Education, Science and Sport of the Republic of Slovenia; the National Science Council and the Ministry of Education of Taiwan; and the US Department of Energy. ",

year = "2002",

month = jun,

day = "27",

doi = "10.1016/S0370-2693(02)01969-X",

language = "English",

volume = "538",

pages = "11--20",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

T1 - Measurements of branching fractions and decay amplitudes in B → J / ψ K* decays

AU - Abe, K.

AU - Abe, T.

AU - Adachi, I.

AU - Ahn, B. S.

AU - Aihara, H.

AU - Akatsu, M.

AU - Asano, Y.

AU - Aso, T.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Ban, Y.

AU - Banas, E.

AU - Bay, A.

AU - Behera, P. K.

AU - Bondar, A.

AU - Bozek, A.

AU - Browder, T. E.

AU - Casey, B. C.K.

AU - Chao, Y.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Choig, S. K.

AU - Choi, Y.

AU - Danilov, M.

AU - Dong, L. Y.

AU - Eidelman, S.

AU - Eiges, V.

AU - Enari, Y.

AU - Fang, F.

AU - Fukunaga, C.

AU - Gershon, T.

AU - Gotow, K.

AU - Guo, R.

AU - Haba, J.

AU - Hanagaki, K.

AU - Hara, T.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Heenan, E. M.

AU - Higuchi, I.

AU - Higuchi, T.

AU - Hokuue, T.

AU - Hoshi, Y.

AU - Hou, S. R.

AU - Hou, W. S.

AU - Huang, H. C.

AU - Igaki, T.

AU - Iijima, T.

AU - Inami, K.

AU - Ishikawa, A.

AU - Ishino, H.

AU - Itoh, R.

AU - Iwamoto, M.

AU - Iwasaki, H.

AU - Iwasaki, Y.

AU - Jalocha, P.

AU - Kang, J. H.

AU - Kang, J. S.

AU - Kapusta, P.

AU - Kataoka, S. U.

AU - Katayama, N.

AU - Kawai, H.

AU - Kawakami, Y.

AU - Kawamura, N.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kim, D. W.

AU - Kim, H.

AU - Kim, H. J.

AU - Kim, H. O.

AU - Kim, H.

AU - Kinoshita, K.

AU - Korpar, S.

AU - Križan, P.

AU - Krokovny, P.

AU - Kulasiri, R.

AU - Kumar, S.

AU - Kwon, Y. J.

AU - Lange, J. S.

AU - Leder, G.

AU - Lee, S. H.

AU - Liventsev, D.

AU - MacNaughton, J.

AU - Majumder, G.

AU - Matsuishi, T.

AU - Matsumoto, S.

AU - Matsumoto, T.

AU - Mitaroff, W.

AU - Miyabayashi, K.

AU - Miyabayashi, Y.

AU - Miyake, H.

AU - Miyata, H.

AU - Moloney, G. R.

AU - Mori, S.

AU - Mori, T.

AU - Nagamine, T.

AU - Nagasaka, Y.

AU - Nakadaira, T.

AU - Nakano, E.

AU - Nakao, M.

AU - Nam, J. W.

AU - Natkaniec, Z.

AU - Nishida, S.

AU - Nitoh, O.

AU - Nozaki, T.

AU - Ogawa, S.

AU - Ohno, F.

AU - Ohshima, T.

AU - Okabe, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Ostrowicz, W.

AU - Ozaki, H.

AU - Pakhlov, P.

AU - Palka, H.

AU - Park, C. W.

AU - Park, H.

AU - Park, K. S.

AU - Piilonen, L. E.

AU - Rozanska, M.

AU - Rybicki, K.

AU - Sagawa, H.

AU - Saitoh, S.

AU - Sakai, Y.

AU - Satapathy, M.

AU - Satpathy, A.

AU - Schneider, O.

AU - Schrenk, S.

AU - Semenov, S.

AU - Senyo, K.

AU - Seuster, R.

AU - Sevior, M. E.

AU - Shibuya, H.

AU - Shwartz, B.

AU - Sidorov, V.

AU - Singh, J. B.

AU - Stanic, S.

AU - Sugi, A.

AU - Sugiyama, A.

AU - Sumisawa, K.

AU - Sumiyoshi, T.

AU - Suzuki, K.

AU - Suzuki, S.

AU - Suzuki, S. Y.

AU - Takahashi, T.

AU - Takasaki, F.

AU - Tamura, N.

AU - Tanaka, M.

AU - Taylor, G. N.

AU - Teramoto, Y.

AU - Tokuda, S.

AU - Tomoto, M.

AU - Tomura, T.

AU - Tovey, S. N.

AU - Trabelsi, K.

AU - Tsuboyama, T.

AU - Tsukamoto, T.

AU - Uehara, S.

AU - Uno, S.

AU - Vahsen, S. E.

AU - Varner, G.

AU - Varvell, K. E.

AU - Wang, C. H.

AU - Wang, J. G.

AU - Wang, M. Z.

AU - Watanabe, Y.

AU - Won, E.

AU - Yabsley, B. D.

AU - Yamada, Y.

AU - Yamaguchi, A.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Yokoyama, M.

AU - Yoshida, K.

AU - Yuan, Y.

AU - Yusa, Y.

AU - Zhang, J.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhu, Z. M.

AU - Žontar, D.

N1 - Funding Information: We wish to thank the KEKB accelerator group for the excellent operation of the KEKB accelerator. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology of Japan and the Japan Society for the Promotion of Science; the Australian Research Council and the Australian Department of Industry, Science and Resources; the National Science Foundation of China under contract No. 10175071; the Department of Science and Technology of India; the BK21 program of the Ministry of Education of Korea and the CHEP SRC program of the Korea Science and Engineering Foundation; the Polish State Committee for Scientific Research under contract No. 2P03B 17017; the Ministry of Science and Technology of the Russian Federation; the Ministry of Education, Science and Sport of the Republic of Slovenia; the National Science Council and the Ministry of Education of Taiwan; and the US Department of Energy.

PY - 2002/6/27

Y1 - 2002/6/27

N2 - The branching fractions and the decay amplitudes of B → J / ψ K* decays are measured in a 29.4 fb-1 data sample collected with the Belle detector at the KEKB electron-positron collider. The decay amplitudes of helicity states of the J / ψ K* system are determined from the full angular distribution of the final state particles in the transversity basis. The branching fractions are measured to be (1.29 ± 0.05 ± 0.13) × 10-3 for neutral mesons and (1.28 ± 0.07 ± 0.14) × 10-3 for charged mesons. The measured longitudinal and transverse (perpendicular to the transversity plane) amplitudes are |A0|2 = 0.62 ± 0.02 ± 0.03 and |A⊥|2 = 0.19 ± 0.02 ± 0.03, respectively. The value of |A⊥|2 shows that the CP even component dominates in the B0 → J/ψ K*0(KSπ0) decay.

AB - The branching fractions and the decay amplitudes of B → J / ψ K* decays are measured in a 29.4 fb-1 data sample collected with the Belle detector at the KEKB electron-positron collider. The decay amplitudes of helicity states of the J / ψ K* system are determined from the full angular distribution of the final state particles in the transversity basis. The branching fractions are measured to be (1.29 ± 0.05 ± 0.13) × 10-3 for neutral mesons and (1.28 ± 0.07 ± 0.14) × 10-3 for charged mesons. The measured longitudinal and transverse (perpendicular to the transversity plane) amplitudes are |A0|2 = 0.62 ± 0.02 ± 0.03 and |A⊥|2 = 0.19 ± 0.02 ± 0.03, respectively. The value of |A⊥|2 shows that the CP even component dominates in the B0 → J/ψ K*0(KSπ0) decay.

UR - http://www.scopus.com/inward/record.url?scp=0002477417&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0002477417&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(02)01969-X

DO - 10.1016/S0370-2693(02)01969-X

M3 - Article

AN - SCOPUS:0002477417

SN - 0370-2693

VL - 538

SP - 11

EP - 20

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

Measurements of branching fractions and decay amplitudes in B → J / ψ K* decays

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