Measurement of the branching fraction for B → η′ K and search for B → η′π+

K. Abe; K. Abe; R. Abe; I. Adachi; B. S. Ahn; H. Aihara; M. Akatsu; Y. Asano; T. Aso; V. Aulchenko; A. M. Bakich; E. Banas; S. Behari; P. K. Behera; D. Beiline; A. Bondar; A. Bozek; T. E. Browder; B. C.K. Casey; P. Chang; Y. Chao; B. G. Cheon; R. Chistov; S. K. Choi; Y. Choi; L. Y. Dong; J. Dragic; S. Eidelman; Y. Enari; F. Fang; H. Fujii; C. Fukunaga; M. Fukushima; N. Gabyshev; A. Garmash; T. Gershon; A. Gordon; K. Gotow; R. Guo; J. Haba; H. Hamasaki; K. Hara; T. Hara; N. C. Hastings; H. Hayashii; M. Hazumi; E. M. Heenan; I. Higuchi; T. Higuchi; H. Hirano; T. Hojo; Y. Hoshi; K. Hoshina; S. R. Hou; W. S. Hou; S. C. Hsu; H. C. Huang; Y. Igarashi; T. Iijima; H. Ikeda; K. Inami; A. Ishikawa; H. Ishino; R. Itoh; G. Iwai; H. Iwasaki; Y. Iwasaki; D. J. Jackson; P. Jalocha; H. K. Jang; J. Kaneko; J. H. Kang; J. S. Kang; N. Katayama; H. Kawai; H. Kawai; N. Kawamura; T. Kawasaki; H. Kichimi; D. W. Kim; H. Kim; H. J. Kim; H. Kim; S. K. Kim; T. H. Kim; K. Kinoshita; S. Kobayashi; H. Konishi; P. Krokovny; R. Kulasiri; S. Kumar; A. Kuzmin; Y. J. Kwon; J. S. Lange; G. Leder; S. H. Lee; D. Liventsev; R. S. Lu; T. Matsubara; S. Matsumoto; T. Matsumoto; J. MacNaughton; Y. Mikami; K. Miyabayashi; H. Miyake; H. Miyata; G. R. Moloney; S. Mori; T. Mori; A. Murakami; T. Nagamine; Y. Nagasaka; Y. Nagashima; T. Nakadaira; E. Nakano; M. Nakao; J. W. Nam; S. Narita; Z. Natkaniec; K. Neichi; S. Nishida; O. Nitoh; S. Noguchi; T. Nozaki; S. Ogawa; T. Ohshima; T. Okabe; S. Okuno; H. Ozaki; P. Pakhlov; H. Palka; C. S. Park; C. W. Park; H. Park; L. S. Peak; M. Peters; L. E. Piilonen; E. Prebys; J. L. Rodriguez; N. Root; M. Rozanska; K. Rybicki; H. Sagawa; Y. Sakai; H. Sakamoto; M. Satapathy; A. Satpathy; S. Semenov; K. Senyo; M. E. Sevior; H. Shibuya; B. Shwartz; S. Stanic; A. Sugi; A. Sugiyama; K. Sumisawa; T. Sumiyoshi; K. Suzuki; S. Suzuki; S. Y. Suzuki; S. K. Swain; T. Takahashi; M. Takita; K. Tamai; N. Tamura; J. Tanaka; M. Tanaka; Y. Tanaka; Y. Teramoto; M. Tomoto; T. Tomura; S. N. Tovey; K. Trabelsi; T. Tsuboyama; T. Tsukamoto; S. Uehara; K. Ueno; Y. Unno; S. Uno; Y. Ushiroda; K. E. Varvell; C. C. Wang; C. H. Wang; J. G. Wang; M. Z. Wang; Y. Watanabe; E. Won; B. D. Yabsley; Y. Yamada; M. Yamaga; A. Yamaguchi; Y. Yamashita; M. Yamauchi; S. Yanaka; J. Yashima; K. Yoshida; Y. Yusa; H. Yuta; C. C. Zhang; J. Zhang; H. W. Zhao; Y. Zheng; V. Zhilich; D. Zontar

doi:10.1016/S0370-2693(01)01025-5

Measurement of the branching fraction for B → η′ K and search for B → η′π⁺

K. Abe, K. Abe, R. Abe, I. Adachi, B. S. Ahn, H. Aihara, M. Akatsu, Y. Asano, T. Aso, V. Aulchenko, A. M. Bakich, E. Banas, S. Behari, P. K. Behera, D. Beiline, A. Bondar, A. Bozek, T. E. Browder, B. C.K. Casey, P. ChangY. Chao, B. G. Cheon, R. Chistov, S. K. Choi, Y. Choi, L. Y. Dong, J. Dragic, S. Eidelman, Y. Enari, F. Fang, H. Fujii, C. Fukunaga, M. Fukushima, N. Gabyshev, A. Garmash, T. Gershon, A. Gordon, K. Gotow, R. Guo, J. Haba, H. Hamasaki, K. Hara, T. Hara, N. C. Hastings, H. Hayashii, M. Hazumi, E. M. Heenan, I. Higuchi, T. Higuchi, H. Hirano, T. Hojo, Y. Hoshi, K. Hoshina, S. R. Hou, W. S. Hou, S. C. Hsu, H. C. Huang, Y. Igarashi, T. Iijima, H. Ikeda, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, G. Iwai, H. Iwasaki, Y. Iwasaki, D. J. Jackson, P. Jalocha, H. K. Jang, J. Kaneko, J. H. Kang, J. S. Kang, N. Katayama, H. Kawai, H. Kawai, N. Kawamura, T. Kawasaki, H. Kichimi, D. W. Kim, H. Kim, H. J. Kim, H. Kim, S. K. Kim, T. H. Kim, K. Kinoshita, S. Kobayashi, H. Konishi, P. Krokovny, R. Kulasiri, S. Kumar, A. Kuzmin, Y. J. Kwon, J. S. Lange, G. Leder, S. H. Lee, D. Liventsev, R. S. Lu, T. Matsubara, S. Matsumoto, T. Matsumoto, J. MacNaughton, Y. Mikami, K. Miyabayashi, H. Miyake, H. Miyata, G. R. Moloney, S. Mori, T. Mori, A. Murakami, T. Nagamine, Y. Nagasaka, Y. Nagashima, T. Nakadaira, E. Nakano, M. Nakao, J. W. Nam, S. Narita, Z. Natkaniec, K. Neichi, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, H. Ozaki, P. Pakhlov, H. Palka, C. S. Park, C. W. Park, H. Park, L. S. Peak, M. Peters, L. E. Piilonen, E. Prebys, J. L. Rodriguez, N. Root, M. Rozanska, K. Rybicki, H. Sagawa, Y. Sakai, H. Sakamoto, M. Satapathy, A. Satpathy, S. Semenov, K. Senyo, M. E. Sevior, H. Shibuya, B. Shwartz, S. Stanic, A. Sugi, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, K. Suzuki, S. Suzuki, S. Y. Suzuki, S. K. Swain, T. Takahashi, M. Takita, K. Tamai, N. Tamura, J. Tanaka, M. Tanaka, Y. Tanaka, Y. Teramoto, M. Tomoto, T. Tomura, S. N. Tovey, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, Y. Unno, S. Uno, Y. Ushiroda, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M. Z. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, M. Yamaga, A. Yamaguchi, Y. Yamashita, M. Yamauchi, S. Yanaka, J. Yashima, K. Yoshida, Y. Yusa, H. Yuta, C. C. Zhang, J. Zhang, H. W. Zhao, Y. Zheng, V. Zhilich, D. Zontar

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

70 Citations (Scopus)

Abstract

We report measurements for two-body charmless hadronic B decays with an η′ meson in the final state. Using 11.1 × 10⁶ BB̄ pairs collected with the Belle detector, we find BF(B⁺ → η′K⁺) = (79⁺¹²_-11 ± 9) × 10^-6 and BF(B⁰ → η′ K⁰) = (55⁺¹⁹_-16 ± 8) × 10^-6, where the first and second errors are statistical and systematic, respectively. No signal is observed in the mode B⁺ → η′⁺, and we set a 90% confidence level upper limit of BF(B⁺ η′π⁺) < 7 × 10^-6. The CP asymmetry in B^± → η′K^± decays is investigated and a limit at 90% confidence level of -0.20 < A_CP < 0.32 is obtained.

Original language	English
Pages (from-to)	309-318
Number of pages	10
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	517
Issue number	3-4
DOIs	https://doi.org/10.1016/S0370-2693(01)01025-5
Publication status	Published - Oct 4 2001
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/S0370-2693(01)01025-5

Cite this

Abe, K., Abe, K., Abe, R., Adachi, I., Ahn, B. S., Aihara, H., Akatsu, M., Asano, Y., Aso, T., Aulchenko, V., Bakich, A. M., Banas, E., Behari, S., Behera, P. K., Beiline, D., Bondar, A., Bozek, A., Browder, T. E., Casey, B. C. K., ... Zontar, D. (2001). Measurement of the branching fraction for B → η′ K and search for B → η′π⁺. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 517(3-4), 309-318. https://doi.org/10.1016/S0370-2693(01)01025-5

Abe, K, Abe, K, Abe, R, Adachi, I, Ahn, BS, Aihara, H, Akatsu, M, Asano, Y, Aso, T, Aulchenko, V, Bakich, AM, Banas, E, Behari, S, Behera, PK, Beiline, D, Bondar, A, Bozek, A, Browder, TE, Casey, BCK, Chang, P, Chao, Y, Cheon, BG, Chistov, R, Choi, SK, Choi, Y, Dong, LY, Dragic, J, Eidelman, S, Enari, Y, Fang, F, Fujii, H, Fukunaga, C, Fukushima, M, Gabyshev, N, Garmash, A, Gershon, T, Gordon, A, Gotow, K, Guo, R, Haba, J, Hamasaki, H, Hara, K, Hara, T, Hastings, NC, Hayashii, H, Hazumi, M, Heenan, EM, Higuchi, I, Higuchi, T, Hirano, H, Hojo, T, Hoshi, Y, Hoshina, K, Hou, SR, Hou, WS, Hsu, SC, Huang, HC, Igarashi, Y, Iijima, T, Ikeda, H, Inami, K, Ishikawa, A, Ishino, H, Itoh, R, Iwai, G, Iwasaki, H, Iwasaki, Y, Jackson, DJ, Jalocha, P, Jang, HK, Kaneko, J, Kang, JH, Kang, JS, Katayama, N, Kawai, H, Kawai, H, Kawamura, N, Kawasaki, T, Kichimi, H, Kim, DW, Kim, H, Kim, HJ, Kim, H, Kim, SK, Kim, TH, Kinoshita, K, Kobayashi, S, Konishi, H, Krokovny, P, Kulasiri, R, Kumar, S, Kuzmin, A, Kwon, YJ, Lange, JS, Leder, G, Lee, SH, Liventsev, D, Lu, RS, Matsubara, T, Matsumoto, S, Matsumoto, T, MacNaughton, J, Mikami, Y, Miyabayashi, K, Miyake, H, Miyata, H, Moloney, GR, Mori, S, Mori, T, Murakami, A, Nagamine, T, Nagasaka, Y, Nagashima, Y, Nakadaira, T, Nakano, E, Nakao, M, Nam, JW, Narita, S, Natkaniec, Z, Neichi, K, Nishida, S, Nitoh, O, Noguchi, S, Nozaki, T, Ogawa, S, Ohshima, T, Okabe, T, Okuno, S, Ozaki, H, Pakhlov, P, Palka, H, Park, CS, Park, CW, Park, H, Peak, LS, Peters, M, Piilonen, LE, Prebys, E, Rodriguez, JL, Root, N, Rozanska, M, Rybicki, K, Sagawa, H, Sakai, Y, Sakamoto, H, Satapathy, M, Satpathy, A, Semenov, S, Senyo, K, Sevior, ME, Shibuya, H, Shwartz, B, Stanic, S, Sugi, A, Sugiyama, A, Sumisawa, K, Sumiyoshi, T, Suzuki, K, Suzuki, S, Suzuki, SY, Swain, SK, Takahashi, T, Takita, M, Tamai, K, Tamura, N, Tanaka, J, Tanaka, M, Tanaka, Y, Teramoto, Y, Tomoto, M, Tomura, T, Tovey, SN, Trabelsi, K, Tsuboyama, T, Tsukamoto, T, Uehara, S, Ueno, K, Unno, Y, Uno, S, Ushiroda, Y, Varvell, KE, Wang, CC, Wang, CH, Wang, JG, Wang, MZ, Watanabe, Y, Won, E, Yabsley, BD, Yamada, Y, Yamaga, M, Yamaguchi, A, Yamashita, Y, Yamauchi, M, Yanaka, S, Yashima, J, Yoshida, K, Yusa, Y, Yuta, H, Zhang, CC, Zhang, J, Zhao, HW, Zheng, Y, Zhilich, V & Zontar, D 2001, 'Measurement of the branching fraction for B → η′ K and search for B → η′π⁺', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 517, no. 3-4, pp. 309-318. https://doi.org/10.1016/S0370-2693(01)01025-5

@article{86e82bf3a71e43409722507694c76e74,

title = "Measurement of the branching fraction for B → η′ K and search for B → η′π+",

abstract = "We report measurements for two-body charmless hadronic B decays with an η′ meson in the final state. Using 11.1 × 106 B{\=B} pairs collected with the Belle detector, we find BF(B+ → η′K+) = (79+12-11 ± 9) × 10-6 and BF(B0 → η′ K0) = (55+19-16 ± 8) × 10-6, where the first and second errors are statistical and systematic, respectively. No signal is observed in the mode B+ → η′+, and we set a 90% confidence level upper limit of BF(B+ η′π+) < 7 × 10-6. The CP asymmetry in B± → η′K± decays is investigated and a limit at 90% confidence level of -0.20 < ACP < 0.32 is obtained.",

author = "K. Abe and K. Abe and R. Abe and I. Adachi and Ahn, {B. S.} and H. Aihara and M. Akatsu and Y. Asano and T. Aso and V. Aulchenko and Bakich, {A. M.} and E. Banas and S. Behari and Behera, {P. K.} and D. Beiline and A. Bondar and A. Bozek and Browder, {T. E.} and Casey, {B. C.K.} and P. Chang and Y. Chao and Cheon, {B. G.} and R. Chistov and Choi, {S. K.} and Y. Choi and Dong, {L. Y.} and J. Dragic and S. Eidelman and Y. Enari and F. Fang and H. Fujii and C. Fukunaga and M. Fukushima and N. Gabyshev and A. Garmash and T. Gershon and A. Gordon and K. Gotow and R. Guo and J. Haba and H. Hamasaki and K. Hara and T. Hara and Hastings, {N. C.} and H. Hayashii and M. Hazumi and Heenan, {E. M.} and I. Higuchi and T. Higuchi and H. Hirano and T. Hojo and Y. Hoshi and K. Hoshina and Hou, {S. R.} and Hou, {W. S.} and Hsu, {S. C.} and Huang, {H. C.} and Y. Igarashi and T. Iijima and H. Ikeda and K. Inami and A. Ishikawa and H. Ishino and R. Itoh and G. Iwai and H. Iwasaki and Y. Iwasaki and Jackson, {D. J.} and P. Jalocha and Jang, {H. K.} and J. Kaneko and Kang, {J. H.} and Kang, {J. S.} and N. Katayama and H. Kawai and H. Kawai and N. Kawamura and T. Kawasaki and H. Kichimi and Kim, {D. W.} and H. Kim and Kim, {H. J.} and H. Kim and Kim, {S. K.} and Kim, {T. H.} and K. Kinoshita and S. Kobayashi and H. Konishi and P. Krokovny and R. Kulasiri and S. Kumar and A. Kuzmin and Kwon, {Y. J.} and Lange, {J. S.} and G. Leder and Lee, {S. H.} and D. Liventsev and Lu, {R. S.} and T. Matsubara and S. Matsumoto and T. Matsumoto and J. MacNaughton and Y. Mikami and K. Miyabayashi and H. Miyake and H. Miyata and Moloney, {G. R.} and S. Mori and T. Mori and A. Murakami and T. Nagamine and Y. Nagasaka and Y. Nagashima and T. Nakadaira and E. Nakano and M. Nakao and Nam, {J. W.} and S. Narita and Z. Natkaniec and K. Neichi and S. Nishida and O. Nitoh and S. Noguchi and T. Nozaki and S. Ogawa and T. Ohshima and T. Okabe and S. Okuno and H. Ozaki and P. Pakhlov and H. Palka and Park, {C. S.} and Park, {C. W.} and H. Park and Peak, {L. S.} and M. Peters and Piilonen, {L. E.} and E. Prebys and Rodriguez, {J. L.} and N. Root and M. Rozanska and K. Rybicki and H. Sagawa and Y. Sakai and H. Sakamoto and M. Satapathy and A. Satpathy and S. Semenov and K. Senyo and Sevior, {M. E.} and H. Shibuya and B. Shwartz 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 Swain, {S. K.} and T. Takahashi and M. Takita and K. Tamai and N. Tamura and J. Tanaka and M. Tanaka and Y. Tanaka and Y. Teramoto and M. Tomoto and T. Tomura and Tovey, {S. N.} and K. Trabelsi and T. Tsuboyama and T. Tsukamoto and S. Uehara and K. Ueno and Y. Unno and S. Uno and Y. Ushiroda and Varvell, {K. E.} and Wang, {C. C.} 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 M. Yamaga and A. Yamaguchi and Y. Yamashita and M. Yamauchi and S. Yanaka and J. Yashima and K. Yoshida and Y. Yusa and H. Yuta and Zhang, {C. C.} and J. Zhang and Zhao, {H. W.} and Y. Zheng and V. Zhilich and D. Zontar",

note = "Funding Information: We wish to thank the KEK accelerator group for excellent operations. 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 Department of Science and Technology of India; the BK21 program of the Ministry of Education of Korea and the Center for High Energy Physics sponsored by the KOSEF; the Polish State Committee for Scientific Research under contract No. 2P03B 17017; the Ministry of Science and Technology of Russian Federation; the National Science Council and the Ministry of Education of Taiwan; the Japan–Taiwan Cooperative Program of the Interchange Association; and the US Department of Energy.",

year = "2001",

month = oct,

day = "4",

doi = "10.1016/S0370-2693(01)01025-5",

language = "English",

volume = "517",

pages = "309--318",

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

issn = "0370-2693",

publisher = "Elsevier",

number = "3-4",

}

TY - JOUR

T1 - Measurement of the branching fraction for B → η′ K and search for B → η′π+

AU - Abe, K.

AU - Abe, R.

AU - Adachi, I.

AU - Ahn, B. S.

AU - Aihara, H.

AU - Akatsu, M.

AU - Asano, Y.

AU - Aso, T.

AU - Aulchenko, V.

AU - Bakich, A. M.

AU - Banas, E.

AU - Behari, S.

AU - Behera, P. K.

AU - Beiline, D.

AU - Bondar, A.

AU - Bozek, A.

AU - Browder, T. E.

AU - Casey, B. C.K.

AU - Chang, P.

AU - Chao, Y.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Choi, S. K.

AU - Choi, Y.

AU - Dong, L. Y.

AU - Dragic, J.

AU - Eidelman, S.

AU - Enari, Y.

AU - Fang, F.

AU - Fujii, H.

AU - Fukunaga, C.

AU - Fukushima, M.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Gershon, T.

AU - Gordon, A.

AU - Gotow, K.

AU - Guo, R.

AU - Haba, J.

AU - Hamasaki, H.

AU - Hara, K.

AU - Hara, T.

AU - Hastings, N. C.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Heenan, E. M.

AU - Higuchi, I.

AU - Higuchi, T.

AU - Hirano, H.

AU - Hojo, T.

AU - Hoshi, Y.

AU - Hoshina, K.

AU - Hou, S. R.

AU - Hou, W. S.

AU - Hsu, S. C.

AU - Huang, H. C.

AU - Igarashi, Y.

AU - Iijima, T.

AU - Ikeda, H.

AU - Inami, K.

AU - Ishikawa, A.

AU - Ishino, H.

AU - Itoh, R.

AU - Iwai, G.

AU - Iwasaki, H.

AU - Iwasaki, Y.

AU - Jackson, D. J.

AU - Jalocha, P.

AU - Jang, H. K.

AU - Kaneko, J.

AU - Kang, J. H.

AU - Kang, J. S.

AU - Katayama, N.

AU - Kawai, H.

AU - Kawamura, N.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kim, D. W.

AU - Kim, H.

AU - Kim, H. J.

AU - Kim, H.

AU - Kim, S. K.

AU - Kim, T. H.

AU - Kinoshita, K.

AU - Kobayashi, S.

AU - Konishi, H.

AU - Krokovny, P.

AU - Kulasiri, R.

AU - Kumar, S.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lange, J. S.

AU - Leder, G.

AU - Lee, S. H.

AU - Liventsev, D.

AU - Lu, R. S.

AU - Matsubara, T.

AU - Matsumoto, S.

AU - Matsumoto, T.

AU - MacNaughton, J.

AU - Mikami, Y.

AU - Miyabayashi, K.

AU - Miyake, H.

AU - Miyata, H.

AU - Moloney, G. R.

AU - Mori, S.

AU - Mori, T.

AU - Murakami, A.

AU - Nagamine, T.

AU - Nagasaka, Y.

AU - Nagashima, Y.

AU - Nakadaira, T.

AU - Nakano, E.

AU - Nakao, M.

AU - Nam, J. W.

AU - Narita, S.

AU - Natkaniec, Z.

AU - Neichi, K.

AU - Nishida, S.

AU - Nitoh, O.

AU - Noguchi, S.

AU - Nozaki, T.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okabe, T.

AU - Okuno, S.

AU - Ozaki, H.

AU - Pakhlov, P.

AU - Palka, H.

AU - Park, C. S.

AU - Park, C. W.

AU - Park, H.

AU - Peak, L. S.

AU - Peters, M.

AU - Piilonen, L. E.

AU - Prebys, E.

AU - Rodriguez, J. L.

AU - Root, N.

AU - Rozanska, M.

AU - Rybicki, K.

AU - Sagawa, H.

AU - Sakai, Y.

AU - Sakamoto, H.

AU - Satapathy, M.

AU - Satpathy, A.

AU - Semenov, S.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shibuya, H.

AU - Shwartz, 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 - Swain, S. K.

AU - Takahashi, T.

AU - Takita, M.

AU - Tamai, K.

AU - Tamura, N.

AU - Tanaka, J.

AU - Tanaka, M.

AU - Tanaka, Y.

AU - Teramoto, Y.

AU - Tomoto, M.

AU - Tomura, T.

AU - Tovey, S. N.

AU - Trabelsi, K.

AU - Tsuboyama, T.

AU - Tsukamoto, T.

AU - Uehara, S.

AU - Ueno, K.

AU - Unno, Y.

AU - Uno, S.

AU - Ushiroda, Y.

AU - Varvell, K. E.

AU - Wang, C. C.

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 - Yamaga, M.

AU - Yamaguchi, A.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Yanaka, S.

AU - Yashima, J.

AU - Yoshida, K.

AU - Yusa, Y.

AU - Yuta, H.

AU - Zhang, C. C.

AU - Zhang, J.

AU - Zhao, H. W.

AU - Zheng, Y.

AU - Zhilich, V.

AU - Zontar, D.

N1 - Funding Information: We wish to thank the KEK accelerator group for excellent operations. 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 Department of Science and Technology of India; the BK21 program of the Ministry of Education of Korea and the Center for High Energy Physics sponsored by the KOSEF; the Polish State Committee for Scientific Research under contract No. 2P03B 17017; the Ministry of Science and Technology of Russian Federation; the National Science Council and the Ministry of Education of Taiwan; the Japan–Taiwan Cooperative Program of the Interchange Association; and the US Department of Energy.

PY - 2001/10/4

Y1 - 2001/10/4

N2 - We report measurements for two-body charmless hadronic B decays with an η′ meson in the final state. Using 11.1 × 106 BB̄ pairs collected with the Belle detector, we find BF(B+ → η′K+) = (79+12-11 ± 9) × 10-6 and BF(B0 → η′ K0) = (55+19-16 ± 8) × 10-6, where the first and second errors are statistical and systematic, respectively. No signal is observed in the mode B+ → η′+, and we set a 90% confidence level upper limit of BF(B+ η′π+) < 7 × 10-6. The CP asymmetry in B± → η′K± decays is investigated and a limit at 90% confidence level of -0.20 < ACP < 0.32 is obtained.

AB - We report measurements for two-body charmless hadronic B decays with an η′ meson in the final state. Using 11.1 × 106 BB̄ pairs collected with the Belle detector, we find BF(B+ → η′K+) = (79+12-11 ± 9) × 10-6 and BF(B0 → η′ K0) = (55+19-16 ± 8) × 10-6, where the first and second errors are statistical and systematic, respectively. No signal is observed in the mode B+ → η′+, and we set a 90% confidence level upper limit of BF(B+ η′π+) < 7 × 10-6. The CP asymmetry in B± → η′K± decays is investigated and a limit at 90% confidence level of -0.20 < ACP < 0.32 is obtained.

UR - http://www.scopus.com/inward/record.url?scp=0035807416&partnerID=8YFLogxK

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U2 - 10.1016/S0370-2693(01)01025-5

DO - 10.1016/S0370-2693(01)01025-5

M3 - Article

AN - SCOPUS:0035807416

SN - 0370-2693

VL - 517

SP - 309

EP - 318

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 - 3-4

ER -

Measurement of the branching fraction for B → η′ K and search for B → η′π⁺

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