Measurement of branching fractions for B → J/ψηK decays and search for a narrow resonance in the J/ψη final state

T. Iwashita, K. Miyabayashi, V. Bhardwaj, I. Adachi, H. Aihara, D. M. Asner, T. Aushev, A. M. Bakich, A. Bala, B. Bhuyan, G. Bonvicini, A. Bozek, M. Bračko, T. E. Browder, M. C. Chang, A. Chen, B. G. Cheon, K. Chilikin, R. Chistov, K. Cho & 160 others V. Chobanova, S. K. Choi, Y. Choi, D. Cinabro, J. Dalseno, M. Danilov, Z. Doležal, Z. Drásal, D. Dutta, S. Eidelman, S. Esen, H. Farhat, J. E. Fast, M. Feindt, T. Ferber, A. Frey, V. Gaur, N. Gabyshev, S. Ganguly, R. Gillard, Y. M. Goh, B. Golob, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, T. Higuchi, Y. Horii, Y. Hoshi, W. S. Hou, H. J. Hyun, T. Iijima, A. Ishikawa, R. Itoh, Y. Iwasaki, I. Jaegle, T. Julius, D. H. Kah, Ju Hwan Kang, E. Kato, T. Kawasaki, H. Kichimi, C. Kiesling, D. Y. Kim, H. J. Kim, H. O. Kim, J. B. Kim, J. H. Kim, M. J. Kim, Y. J. Kim, K. Kinoshita, J. Klucar, B. R. Ko, P. Kodyšs, S. Korpar, P. Križan, P. Krokovny, T. Kuhr, T. Kumita, A. Kuzmin, Youngjoon Kwon, J. S. Lange, S. H. Lee, Y. Li, J. Libby, C. Liu, Y. Liu, P. Lukin, D. Matvienko, H. Miyata, R. Mizuk, A. Moll, T. Mori, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, M. Nayak, C. Ng, N. K. Nisar, S. Nishida, O. Nitoh, S. Ogawa, S. Okuno, G. Pakhlova, E. Panzenböck, H. Park, H. K. Park, T. K. Pedlar, R. Pestotnik, M. Petrič, L. E. Piilonen, M. Ritter, M. Röhrken, A. Rostomyan, S. Ryu, H. Sahoo, T. Saito, K. Sakai, Y. Sakai, S. Sandilya, D. Santel, L. Santelj, T. Sanuki, V. Savinov, O. Schneider, G. Schnell, C. Schwanda, D. Semmler, K. Senyo, O. Seon, M. E. Sevior, M. Shapkin, C. P. Shen, T. A. Shibata, J. G. Shiu, B. Shwartz, A. Sibidanov, F. Simon, Y. S. Sohn, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, M. Steder, T. Sumiyoshi, U. Tamponi, K. Tanida, G. Tatishvili, Y. Teramoto, K. Trabelsi, T. Tsuboyama, M. Uchida, S. Uehara, Y. Unno, S. Uno, P. Urquijo, P. Vanhoefer, G. Varner, K. E. Varvell, V. Vorobyev, A. Vossen, M. N. Wagner, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, M. Watanabe, Y. Watanabe, K. M. Williams, E. Won, B. D. Yabsley, Y. Yamashita, S. Yashchenko, Y. Yook, C. Z. Yuan, Z. P. Zhang, V. Zhilich, A. Zupanc

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We report an observation of the B±→ J/ψηK± and B0 → J/ψηK0S decays using 772 × 106BB¯ pairs collected at the γ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We obtain the branching fractions B(B?→ J/ψηK±) = (1.27 ±0.11(stat.) ±0.11(syst.)) ×10-4 and B(B0 → J/ψηK0 S ) = (5.22 ±0.78(stat.) ± 0.49(syst.)) ×10-5. We search for a new narrow charmonium(-like) state X in the J/ψη mass spectrum and find no significant excess. We set upper limits on the product of branching fractions, B(B±→ X K± )B(X → J/ψη), at 3872MeVc-2 where aC-odd partner of X(3872) may exist, at ψ(4040) and ψ(4160) assuming their known mass and width, and over a range from 3.8 to 4.8 GeV c-2. The obtained upper limits at 90% confidence level for XC-odd(3872), ψ(4040), and ψ(4160) are 3.8 ×10-6, 15.5 ×10-6, and 7.4 ×10-6, respectively.

Original languageEnglish
Article number43C01
JournalProgress of Theoretical and Experimental Physics
Volume2014
Issue number4
DOIs
Publication statusPublished - 2014 Apr 16

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decay
mass spectra
confidence
detectors
products
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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Iwashita, T. ; Miyabayashi, K. ; Bhardwaj, V. ; Adachi, I. ; Aihara, H. ; Asner, D. M. ; Aushev, T. ; Bakich, A. M. ; Bala, A. ; Bhuyan, B. ; Bonvicini, G. ; Bozek, A. ; Bračko, M. ; Browder, T. E. ; Chang, M. C. ; Chen, A. ; Cheon, B. G. ; Chilikin, K. ; Chistov, R. ; Cho, K. ; Chobanova, V. ; Choi, S. K. ; Choi, Y. ; Cinabro, D. ; Dalseno, J. ; Danilov, M. ; Doležal, Z. ; Drásal, Z. ; Dutta, D. ; Eidelman, S. ; Esen, S. ; Farhat, H. ; Fast, J. E. ; Feindt, M. ; Ferber, T. ; Frey, A. ; Gaur, V. ; Gabyshev, N. ; Ganguly, S. ; Gillard, R. ; Goh, Y. M. ; Golob, B. ; Haba, J. ; Hara, T. ; Hayasaka, K. ; Hayashii, H. ; Higuchi, T. ; Horii, Y. ; Hoshi, Y. ; Hou, W. S. ; Hyun, H. J. ; Iijima, T. ; Ishikawa, A. ; Itoh, R. ; Iwasaki, Y. ; Jaegle, I. ; Julius, T. ; Kah, D. H. ; Kang, Ju Hwan ; Kato, E. ; Kawasaki, T. ; Kichimi, H. ; Kiesling, C. ; Kim, D. Y. ; Kim, H. J. ; Kim, H. O. ; Kim, J. B. ; Kim, J. H. ; Kim, M. J. ; Kim, Y. J. ; Kinoshita, K. ; Klucar, J. ; Ko, B. R. ; Kodyšs, P. ; Korpar, S. ; Križan, P. ; Krokovny, P. ; Kuhr, T. ; Kumita, T. ; Kuzmin, A. ; Kwon, Youngjoon ; Lange, J. S. ; Lee, S. H. ; Li, Y. ; Libby, J. ; Liu, C. ; Liu, Y. ; Lukin, P. ; Matvienko, D. ; Miyata, H. ; Mizuk, R. ; Moll, A. ; Mori, T. ; Nagasaka, Y. ; Nakano, E. ; Nakao, M. ; Nakazawa, H. ; Natkaniec, Z. ; Nayak, M. ; Ng, C. ; Nisar, N. K. ; Nishida, S. ; Nitoh, O. ; Ogawa, S. ; Okuno, S. ; Pakhlova, G. ; Panzenböck, E. ; Park, H. ; Park, H. K. ; Pedlar, T. K. ; Pestotnik, R. ; Petrič, M. ; Piilonen, L. E. ; Ritter, M. ; Röhrken, M. ; Rostomyan, A. ; Ryu, S. ; Sahoo, H. ; Saito, T. ; Sakai, K. ; Sakai, Y. ; Sandilya, S. ; Santel, D. ; Santelj, L. ; Sanuki, T. ; Savinov, V. ; Schneider, O. ; Schnell, G. ; Schwanda, C. ; Semmler, D. ; Senyo, K. ; Seon, O. ; Sevior, M. E. ; Shapkin, M. ; Shen, C. P. ; Shibata, T. A. ; Shiu, J. G. ; Shwartz, B. ; Sibidanov, A. ; Simon, F. ; Sohn, Y. S. ; Sokolov, A. ; Solovieva, E. ; Stanič, S. ; Starič, M. ; Steder, M. ; Sumiyoshi, T. ; Tamponi, U. ; Tanida, K. ; Tatishvili, G. ; Teramoto, Y. ; Trabelsi, K. ; Tsuboyama, T. ; Uchida, M. ; Uehara, S. ; Unno, Y. ; Uno, S. ; Urquijo, P. ; Vanhoefer, P. ; Varner, G. ; Varvell, K. E. ; Vorobyev, V. ; Vossen, A. ; Wagner, M. N. ; Wang, C. H. ; Wang, M. Z. ; Wang, P. ; Wang, X. L. ; Watanabe, M. ; Watanabe, Y. ; Williams, K. M. ; Won, E. ; Yabsley, B. D. ; Yamashita, Y. ; Yashchenko, S. ; Yook, Y. ; Yuan, C. Z. ; Zhang, Z. P. ; Zhilich, V. ; Zupanc, A. / Measurement of branching fractions for B → J/ψηK decays and search for a narrow resonance in the J/ψη final state. In: Progress of Theoretical and Experimental Physics. 2014 ; Vol. 2014, No. 4.
@article{3683b38cbca74904b0fdb4d0a010fb52,
title = "Measurement of branching fractions for B → J/ψηK decays and search for a narrow resonance in the J/ψη final state",
abstract = "We report an observation of the B±→ J/ψηK± and B0 → J/ψηK0S decays using 772 × 106BB¯ pairs collected at the γ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We obtain the branching fractions B(B?→ J/ψηK±) = (1.27 ±0.11(stat.) ±0.11(syst.)) ×10-4 and B(B0 → J/ψηK0 S ) = (5.22 ±0.78(stat.) ± 0.49(syst.)) ×10-5. We search for a new narrow charmonium(-like) state X in the J/ψη mass spectrum and find no significant excess. We set upper limits on the product of branching fractions, B(B±→ X K± )B(X → J/ψη), at 3872MeVc-2 where aC-odd partner of X(3872) may exist, at ψ(4040) and ψ(4160) assuming their known mass and width, and over a range from 3.8 to 4.8 GeV c-2. The obtained upper limits at 90{\%} confidence level for XC-odd(3872), ψ(4040), and ψ(4160) are 3.8 ×10-6, 15.5 ×10-6, and 7.4 ×10-6, respectively.",
author = "T. Iwashita and K. Miyabayashi and V. Bhardwaj and I. Adachi and H. Aihara and Asner, {D. M.} and T. Aushev and Bakich, {A. M.} and A. Bala and B. Bhuyan and G. Bonvicini and A. Bozek and M. Bračko and Browder, {T. E.} and Chang, {M. C.} and A. Chen and Cheon, {B. G.} and K. Chilikin and R. Chistov and K. Cho and V. Chobanova and Choi, {S. K.} and Y. Choi and D. Cinabro and J. Dalseno and M. Danilov and Z. Doležal and Z. Dr{\'a}sal and D. Dutta and S. Eidelman and S. Esen and H. Farhat and Fast, {J. E.} and M. Feindt and T. Ferber and A. Frey and V. Gaur and N. Gabyshev and S. Ganguly and R. Gillard and Goh, {Y. M.} and B. Golob and J. Haba and T. Hara and K. Hayasaka and H. Hayashii and T. Higuchi and Y. Horii and Y. Hoshi and Hou, {W. S.} and Hyun, {H. J.} and T. Iijima and A. Ishikawa and R. Itoh and Y. Iwasaki and I. Jaegle and T. Julius and Kah, {D. H.} and Kang, {Ju Hwan} and E. Kato and T. Kawasaki and H. Kichimi and C. Kiesling and Kim, {D. Y.} and Kim, {H. J.} and Kim, {H. O.} and Kim, {J. B.} and Kim, {J. H.} and Kim, {M. J.} and Kim, {Y. J.} and K. Kinoshita and J. Klucar and Ko, {B. R.} and P. Kodyšs and S. Korpar and P. Križan and P. Krokovny and T. Kuhr and T. Kumita and A. Kuzmin and Youngjoon Kwon and Lange, {J. S.} and Lee, {S. H.} and Y. Li and J. Libby and C. Liu and Y. Liu and P. Lukin and D. Matvienko and H. Miyata and R. Mizuk and A. Moll and T. Mori and Y. Nagasaka and E. Nakano and M. Nakao and H. Nakazawa and Z. Natkaniec and M. Nayak and C. Ng and Nisar, {N. K.} and S. Nishida and O. Nitoh and S. Ogawa and S. Okuno and G. Pakhlova and E. Panzenb{\"o}ck and H. Park and Park, {H. K.} and Pedlar, {T. K.} and R. Pestotnik and M. Petrič and Piilonen, {L. E.} and M. Ritter and M. R{\"o}hrken and A. Rostomyan and S. Ryu and H. Sahoo and T. Saito and K. Sakai and Y. Sakai and S. Sandilya and D. Santel and L. Santelj and T. Sanuki and V. Savinov and O. Schneider and G. Schnell and C. Schwanda and D. Semmler and K. Senyo and O. Seon and Sevior, {M. E.} and M. Shapkin and Shen, {C. P.} and Shibata, {T. A.} and Shiu, {J. G.} and B. Shwartz and A. Sibidanov and F. Simon and Sohn, {Y. S.} and A. Sokolov and E. Solovieva and S. Stanič and M. Starič and M. Steder and T. Sumiyoshi and U. Tamponi and K. Tanida and G. Tatishvili and Y. Teramoto and K. Trabelsi and T. Tsuboyama and M. Uchida and S. Uehara and Y. Unno and S. Uno and P. Urquijo and P. Vanhoefer and G. Varner and Varvell, {K. E.} and V. Vorobyev and A. Vossen and Wagner, {M. N.} and Wang, {C. H.} and Wang, {M. Z.} and P. Wang and Wang, {X. L.} and M. Watanabe and Y. Watanabe and Williams, {K. M.} and E. Won and Yabsley, {B. D.} and Y. Yamashita and S. Yashchenko and Y. Yook and Yuan, {C. Z.} and Zhang, {Z. P.} and V. Zhilich and A. Zupanc",
year = "2014",
month = "4",
day = "16",
doi = "10.1093/ptep/ptu043",
language = "English",
volume = "2014",
journal = "Progress of Theoretical and Experimental Physics",
issn = "2050-3911",
publisher = "Oxford University Press",
number = "4",

}

Iwashita, T, Miyabayashi, K, Bhardwaj, V, Adachi, I, Aihara, H, Asner, DM, Aushev, T, Bakich, AM, Bala, A, Bhuyan, B, Bonvicini, G, Bozek, A, Bračko, M, Browder, TE, Chang, MC, Chen, A, Cheon, BG, Chilikin, K, Chistov, R, Cho, K, Chobanova, V, Choi, SK, Choi, Y, Cinabro, D, Dalseno, J, Danilov, M, Doležal, Z, Drásal, Z, Dutta, D, Eidelman, S, Esen, S, Farhat, H, Fast, JE, Feindt, M, Ferber, T, Frey, A, Gaur, V, Gabyshev, N, Ganguly, S, Gillard, R, Goh, YM, Golob, B, Haba, J, Hara, T, Hayasaka, K, Hayashii, H, Higuchi, T, Horii, Y, Hoshi, Y, Hou, WS, Hyun, HJ, Iijima, T, Ishikawa, A, Itoh, R, Iwasaki, Y, Jaegle, I, Julius, T, Kah, DH, Kang, JH, Kato, E, Kawasaki, T, Kichimi, H, Kiesling, C, Kim, DY, Kim, HJ, Kim, HO, Kim, JB, Kim, JH, Kim, MJ, Kim, YJ, Kinoshita, K, Klucar, J, Ko, BR, Kodyšs, P, Korpar, S, Križan, P, Krokovny, P, Kuhr, T, Kumita, T, Kuzmin, A, Kwon, Y, Lange, JS, Lee, SH, Li, Y, Libby, J, Liu, C, Liu, Y, Lukin, P, Matvienko, D, Miyata, H, Mizuk, R, Moll, A, Mori, T, Nagasaka, Y, Nakano, E, Nakao, M, Nakazawa, H, Natkaniec, Z, Nayak, M, Ng, C, Nisar, NK, Nishida, S, Nitoh, O, Ogawa, S, Okuno, S, Pakhlova, G, Panzenböck, E, Park, H, Park, HK, Pedlar, TK, Pestotnik, R, Petrič, M, Piilonen, LE, Ritter, M, Röhrken, M, Rostomyan, A, Ryu, S, Sahoo, H, Saito, T, Sakai, K, Sakai, Y, Sandilya, S, Santel, D, Santelj, L, Sanuki, T, Savinov, V, Schneider, O, Schnell, G, Schwanda, C, Semmler, D, Senyo, K, Seon, O, Sevior, ME, Shapkin, M, Shen, CP, Shibata, TA, Shiu, JG, Shwartz, B, Sibidanov, A, Simon, F, Sohn, YS, Sokolov, A, Solovieva, E, Stanič, S, Starič, M, Steder, M, Sumiyoshi, T, Tamponi, U, Tanida, K, Tatishvili, G, Teramoto, Y, Trabelsi, K, Tsuboyama, T, Uchida, M, Uehara, S, Unno, Y, Uno, S, Urquijo, P, Vanhoefer, P, Varner, G, Varvell, KE, Vorobyev, V, Vossen, A, Wagner, MN, Wang, CH, Wang, MZ, Wang, P, Wang, XL, Watanabe, M, Watanabe, Y, Williams, KM, Won, E, Yabsley, BD, Yamashita, Y, Yashchenko, S, Yook, Y, Yuan, CZ, Zhang, ZP, Zhilich, V & Zupanc, A 2014, 'Measurement of branching fractions for B → J/ψηK decays and search for a narrow resonance in the J/ψη final state', Progress of Theoretical and Experimental Physics, vol. 2014, no. 4, 43C01. https://doi.org/10.1093/ptep/ptu043

Measurement of branching fractions for B → J/ψηK decays and search for a narrow resonance in the J/ψη final state. / Iwashita, T.; Miyabayashi, K.; Bhardwaj, V.; Adachi, I.; Aihara, H.; Asner, D. M.; Aushev, T.; Bakich, A. M.; Bala, A.; Bhuyan, B.; Bonvicini, G.; Bozek, A.; Bračko, M.; Browder, T. E.; Chang, M. C.; Chen, A.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Cho, K.; Chobanova, V.; Choi, S. K.; Choi, Y.; Cinabro, D.; Dalseno, J.; Danilov, M.; Doležal, Z.; Drásal, Z.; Dutta, D.; Eidelman, S.; Esen, S.; Farhat, H.; Fast, J. E.; Feindt, M.; Ferber, T.; Frey, A.; Gaur, V.; Gabyshev, N.; Ganguly, S.; Gillard, R.; Goh, Y. M.; Golob, B.; Haba, J.; Hara, T.; Hayasaka, K.; Hayashii, H.; Higuchi, T.; Horii, Y.; Hoshi, Y.; Hou, W. S.; Hyun, H. J.; Iijima, T.; Ishikawa, A.; Itoh, R.; Iwasaki, Y.; Jaegle, I.; Julius, T.; Kah, D. H.; Kang, Ju Hwan; Kato, E.; Kawasaki, T.; Kichimi, H.; Kiesling, C.; Kim, D. Y.; Kim, H. J.; Kim, H. O.; Kim, J. B.; Kim, J. H.; Kim, M. J.; Kim, Y. J.; Kinoshita, K.; Klucar, J.; Ko, B. R.; Kodyšs, P.; Korpar, S.; Križan, P.; Krokovny, P.; Kuhr, T.; Kumita, T.; Kuzmin, A.; Kwon, Youngjoon; Lange, J. S.; Lee, S. H.; Li, Y.; Libby, J.; Liu, C.; Liu, Y.; Lukin, P.; Matvienko, D.; Miyata, H.; Mizuk, R.; Moll, A.; Mori, T.; Nagasaka, Y.; Nakano, E.; Nakao, M.; Nakazawa, H.; Natkaniec, Z.; Nayak, M.; Ng, C.; Nisar, N. K.; Nishida, S.; Nitoh, O.; Ogawa, S.; Okuno, S.; Pakhlova, G.; Panzenböck, E.; Park, H.; Park, H. K.; Pedlar, T. K.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Ritter, M.; Röhrken, M.; Rostomyan, A.; Ryu, S.; Sahoo, H.; Saito, T.; Sakai, K.; Sakai, Y.; Sandilya, S.; Santel, D.; Santelj, L.; Sanuki, T.; Savinov, V.; Schneider, O.; Schnell, G.; Schwanda, C.; Semmler, D.; Senyo, K.; Seon, O.; Sevior, M. E.; Shapkin, M.; Shen, C. P.; Shibata, T. A.; Shiu, J. G.; Shwartz, B.; Sibidanov, A.; Simon, F.; Sohn, Y. S.; Sokolov, A.; Solovieva, E.; Stanič, S.; Starič, M.; Steder, M.; Sumiyoshi, T.; Tamponi, U.; Tanida, K.; Tatishvili, G.; Teramoto, Y.; Trabelsi, K.; Tsuboyama, T.; Uchida, M.; Uehara, S.; Unno, Y.; Uno, S.; Urquijo, P.; Vanhoefer, P.; Varner, G.; Varvell, K. E.; Vorobyev, V.; Vossen, A.; Wagner, M. N.; Wang, C. H.; Wang, M. Z.; Wang, P.; Wang, X. L.; Watanabe, M.; Watanabe, Y.; Williams, K. M.; Won, E.; Yabsley, B. D.; Yamashita, Y.; Yashchenko, S.; Yook, Y.; Yuan, C. Z.; Zhang, Z. P.; Zhilich, V.; Zupanc, A.

In: Progress of Theoretical and Experimental Physics, Vol. 2014, No. 4, 43C01, 16.04.2014.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Measurement of branching fractions for B → J/ψηK decays and search for a narrow resonance in the J/ψη final state

AU - Iwashita, T.

AU - Miyabayashi, K.

AU - Bhardwaj, V.

AU - Adachi, I.

AU - Aihara, H.

AU - Asner, D. M.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Bala, A.

AU - Bhuyan, B.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chang, M. C.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Chistov, R.

AU - Cho, K.

AU - Chobanova, V.

AU - Choi, S. K.

AU - Choi, Y.

AU - Cinabro, D.

AU - Dalseno, J.

AU - Danilov, M.

AU - Doležal, Z.

AU - Drásal, Z.

AU - Dutta, D.

AU - Eidelman, S.

AU - Esen, S.

AU - Farhat, H.

AU - Fast, J. E.

AU - Feindt, M.

AU - Ferber, T.

AU - Frey, A.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Ganguly, S.

AU - Gillard, R.

AU - Goh, Y. M.

AU - Golob, B.

AU - Haba, J.

AU - Hara, T.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Higuchi, T.

AU - Horii, Y.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hyun, H. J.

AU - Iijima, T.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, Y.

AU - Jaegle, I.

AU - Julius, T.

AU - Kah, D. H.

AU - Kang, Ju Hwan

AU - Kato, E.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kiesling, C.

AU - Kim, D. Y.

AU - Kim, H. J.

AU - Kim, H. O.

AU - Kim, J. B.

AU - Kim, J. H.

AU - Kim, M. J.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Klucar, J.

AU - Ko, B. R.

AU - Kodyšs, P.

AU - Korpar, S.

AU - Križan, P.

AU - Krokovny, P.

AU - Kuhr, T.

AU - Kumita, T.

AU - Kuzmin, A.

AU - Kwon, Youngjoon

AU - Lange, J. S.

AU - Lee, S. H.

AU - Li, Y.

AU - Libby, J.

AU - Liu, C.

AU - Liu, Y.

AU - Lukin, P.

AU - Matvienko, D.

AU - Miyata, H.

AU - Mizuk, R.

AU - Moll, A.

AU - Mori, T.

AU - Nagasaka, Y.

AU - Nakano, E.

AU - Nakao, M.

AU - Nakazawa, H.

AU - Natkaniec, Z.

AU - Nayak, M.

AU - Ng, C.

AU - Nisar, N. K.

AU - Nishida, S.

AU - Nitoh, O.

AU - Ogawa, S.

AU - Okuno, S.

AU - Pakhlova, G.

AU - Panzenböck, E.

AU - Park, H.

AU - Park, H. K.

AU - Pedlar, T. K.

AU - Pestotnik, R.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - Ritter, M.

AU - Röhrken, M.

AU - Rostomyan, A.

AU - Ryu, S.

AU - Sahoo, H.

AU - Saito, T.

AU - Sakai, K.

AU - Sakai, Y.

AU - Sandilya, S.

AU - Santel, D.

AU - Santelj, L.

AU - Sanuki, T.

AU - Savinov, V.

AU - Schneider, O.

AU - Schnell, G.

AU - Schwanda, C.

AU - Semmler, D.

AU - Senyo, K.

AU - Seon, O.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shen, C. P.

AU - Shibata, T. A.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Sibidanov, A.

AU - Simon, F.

AU - Sohn, Y. S.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Stanič, S.

AU - Starič, M.

AU - Steder, M.

AU - Sumiyoshi, T.

AU - Tamponi, U.

AU - Tanida, K.

AU - Tatishvili, G.

AU - Teramoto, Y.

AU - Trabelsi, K.

AU - Tsuboyama, T.

AU - Uchida, M.

AU - Uehara, S.

AU - Unno, Y.

AU - Uno, S.

AU - Urquijo, P.

AU - Vanhoefer, P.

AU - Varner, G.

AU - Varvell, K. E.

AU - Vorobyev, V.

AU - Vossen, A.

AU - Wagner, M. N.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Wang, P.

AU - Wang, X. L.

AU - Watanabe, M.

AU - Watanabe, Y.

AU - Williams, K. M.

AU - Won, E.

AU - Yabsley, B. D.

AU - Yamashita, Y.

AU - Yashchenko, S.

AU - Yook, Y.

AU - Yuan, C. Z.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zupanc, A.

PY - 2014/4/16

Y1 - 2014/4/16

N2 - We report an observation of the B±→ J/ψηK± and B0 → J/ψηK0S decays using 772 × 106BB¯ pairs collected at the γ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We obtain the branching fractions B(B?→ J/ψηK±) = (1.27 ±0.11(stat.) ±0.11(syst.)) ×10-4 and B(B0 → J/ψηK0 S ) = (5.22 ±0.78(stat.) ± 0.49(syst.)) ×10-5. We search for a new narrow charmonium(-like) state X in the J/ψη mass spectrum and find no significant excess. We set upper limits on the product of branching fractions, B(B±→ X K± )B(X → J/ψη), at 3872MeVc-2 where aC-odd partner of X(3872) may exist, at ψ(4040) and ψ(4160) assuming their known mass and width, and over a range from 3.8 to 4.8 GeV c-2. The obtained upper limits at 90% confidence level for XC-odd(3872), ψ(4040), and ψ(4160) are 3.8 ×10-6, 15.5 ×10-6, and 7.4 ×10-6, respectively.

AB - We report an observation of the B±→ J/ψηK± and B0 → J/ψηK0S decays using 772 × 106BB¯ pairs collected at the γ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We obtain the branching fractions B(B?→ J/ψηK±) = (1.27 ±0.11(stat.) ±0.11(syst.)) ×10-4 and B(B0 → J/ψηK0 S ) = (5.22 ±0.78(stat.) ± 0.49(syst.)) ×10-5. We search for a new narrow charmonium(-like) state X in the J/ψη mass spectrum and find no significant excess. We set upper limits on the product of branching fractions, B(B±→ X K± )B(X → J/ψη), at 3872MeVc-2 where aC-odd partner of X(3872) may exist, at ψ(4040) and ψ(4160) assuming their known mass and width, and over a range from 3.8 to 4.8 GeV c-2. The obtained upper limits at 90% confidence level for XC-odd(3872), ψ(4040), and ψ(4160) are 3.8 ×10-6, 15.5 ×10-6, and 7.4 ×10-6, respectively.

UR - http://www.scopus.com/inward/record.url?scp=84924411993&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84924411993&partnerID=8YFLogxK

U2 - 10.1093/ptep/ptu043

DO - 10.1093/ptep/ptu043

M3 - Article

VL - 2014

JO - Progress of Theoretical and Experimental Physics

JF - Progress of Theoretical and Experimental Physics

SN - 2050-3911

IS - 4

M1 - 43C01

ER -