Observation of exclusive Υ(1S) and Υ(2S) decays into light hadrons

C. P. Shen, C. Z. Yuan, T. Iijima, I. Adachi, H. Aihara, D. M. Asner, T. Aushev, A. M. Bakich, A. Bay, K. Belous, B. Bhuyan, M. Bischofberger, G. Bonvicini, A. Bozek, M. Bračko, T. E. Browder, M. C. Chang, P. Chang, A. Chen, P. Chen & 135 others B. G. Cheon, K. Chilikin, R. Chistov, I. S. Cho, K. Cho, S. K. Choi, Y. Choi, J. Dalseno, Z. Doleåal, Z. Drásal, S. Eidelman, J. E. Fast, V. Gaur, N. Gabyshev, Y. M. Goh, B. Golob, J. Haba, H. Hayashii, Y. Horii, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, K. Inami, A. Ishikawa, R. Itoh, M. Iwabuchi, Y. Iwasaki, T. Iwashita, T. Julius, J. H. Kang, T. Kawasaki, C. Kiesling, B. H. Kim, H. O. Kim, J. B. Kim, J. H. Kim, M. J. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, S. Koblitz, P. Kodyå, S. Korpar, R. T. Kouzes, P. Kriåan, P. Krokovny, R. Kumar, T. Kumita, A. Kuzmin, Y. J. Kwon, S. H. Lee, J. Li, Y. Li, J. Libby, C. Liu, Y. Liu, Z. Q. Liu, R. Louvot, S. McOnie, K. Miyabayashi, H. Miyata, G. B. Mohanty, D. Mohapatra, A. Moll, N. Muramatsu, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, K. Nishimura, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, H. K. Park, T. K. Pedlar, R. Pestotnik, M. Petrič, L. E. Piilonen, M. Ritter, H. Sahoo, Y. Sakai, D. Santel, T. Sanuki, Y. Sato, O. Schneider, C. Schwanda, K. Senyo, O. Seon, M. E. Sevior, M. Shapkin, V. Shebalin, T. A. Shibata, J. G. Shiu, B. Shwartz, A. Sibidanov, F. Simon, P. Smerkol, Y. S. Sohn, A. Sokolov, E. Solovieva, M. Starič, M. Sumihama, T. Sumiyoshi, G. Tatishvili, Y. Teramoto, M. Uchida, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, P. Vanhoefer, G. Varner, C. H. Wang, P. Wang, X. L. Wang, M. Watanabe, Y. Watanabe, K. M. Williams, Eunil Won, B. D. Yabsley, Y. Yamashita, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Using samples of 102×106 Υ(1S) and 158×106 Υ(2S) events collected with the Belle detector, we study exclusive hadronic decays of these two bottomonium resonances to the three-body final states Ï•K +K -, ωπ +π - and K *0(892)K -π +, and to the two-body Vector-Tensor states (Ï•f2′(1525), ωf 2(1270), ρa 2(1320) and K *0(892)K̄2*0(1430)) and Axial-vector-Pseudoscalar (K 1(1270) +K -, K 1(1400) +K - and b 1(1235) +π -) states. Signals are observed for the first time in the Υ(1S)→Ï•K +K -, ωπ +π -, K *0K -π +, K *0K2*0 and Υ(2S)→Ï•K +K -, K *0K -π + decay modes. Branching fractions are determined for all the processes, while 90% confidence level upper limits are established on the branching fractions for the modes with a statistical significance less than 3σ. The ratios of the branching fractions of Υ(2S) and Υ(1S) decays into the same final state are used to test a perturbative QCD prediction for OZI-suppressed bottomonium decays.

Original languageEnglish
Article number031102
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume86
Issue number3
DOIs
Publication statusPublished - 2012 Aug 15

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hadrons
decay
confidence
quantum chromodynamics
tensors
detectors
predictions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Shen, C. P., Yuan, C. Z., Iijima, T., Adachi, I., Aihara, H., Asner, D. M., ... Zupanc, A. (2012). Observation of exclusive Υ(1S) and Υ(2S) decays into light hadrons. Physical Review D - Particles, Fields, Gravitation and Cosmology, 86(3), [031102]. https://doi.org/10.1103/PhysRevD.86.031102

Observation of exclusive Υ(1S) and Υ(2S) decays into light hadrons. / Shen, C. P.; Yuan, C. Z.; Iijima, T.; Adachi, I.; Aihara, H.; Asner, D. M.; Aushev, T.; Bakich, A. M.; Bay, A.; Belous, K.; Bhuyan, B.; Bischofberger, M.; Bonvicini, G.; Bozek, A.; Bračko, M.; Browder, T. E.; Chang, M. C.; Chang, P.; Chen, A.; Chen, P.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Cho, I. S.; Cho, K.; Choi, S. K.; Choi, Y.; Dalseno, J.; Doleåal, Z.; Drásal, Z.; Eidelman, S.; Fast, J. E.; Gaur, V.; Gabyshev, N.; Goh, Y. M.; Golob, B.; Haba, J.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W. S.; Hsiung, Y. B.; Hyun, H. J.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwabuchi, M.; Iwasaki, Y.; Iwashita, T.; Julius, T.; Kang, J. H.; Kawasaki, T.; Kiesling, C.; Kim, B. H.; Kim, H. O.; Kim, J. B.; Kim, J. H.; Kim, M. J.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Koblitz, S.; Kodyå, P.; Korpar, S.; Kouzes, R. T.; Kriåan, P.; Krokovny, P.; Kumar, R.; Kumita, T.; Kuzmin, A.; Kwon, Y. J.; Lee, S. H.; Li, J.; Li, Y.; Libby, J.; Liu, C.; Liu, Y.; Liu, Z. Q.; Louvot, R.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Mohanty, G. B.; Mohapatra, D.; Moll, A.; Muramatsu, N.; Nakano, E.; Nakao, M.; Natkaniec, Z.; Nishida, S.; Nishimura, K.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Pakhlov, P.; Pakhlova, G.; Park, C. W.; Park, H.; Park, H. K.; Pedlar, T. K.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Ritter, M.; Sahoo, H.; Sakai, Y.; Santel, D.; Sanuki, T.; Sato, Y.; Schneider, O.; Schwanda, C.; Senyo, K.; Seon, O.; Sevior, M. E.; Shapkin, M.; Shebalin, V.; Shibata, T. A.; Shiu, J. G.; Shwartz, B.; Sibidanov, A.; Simon, F.; Smerkol, P.; Sohn, Y. S.; Sokolov, A.; Solovieva, E.; Starič, M.; Sumihama, M.; Sumiyoshi, T.; Tatishvili, G.; Teramoto, Y.; Uchida, M.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Vanhoefer, P.; Varner, G.; Wang, C. H.; Wang, P.; Wang, X. L.; Watanabe, M.; Watanabe, Y.; Williams, K. M.; Won, Eunil; Yabsley, B. D.; Yamashita, Y.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 86, No. 3, 031102, 15.08.2012.

Research output: Contribution to journalArticle

Shen, CP, Yuan, CZ, Iijima, T, Adachi, I, Aihara, H, Asner, DM, Aushev, T, Bakich, AM, Bay, A, Belous, K, Bhuyan, B, Bischofberger, M, Bonvicini, G, Bozek, A, Bračko, M, Browder, TE, Chang, MC, Chang, P, Chen, A, Chen, P, Cheon, BG, Chilikin, K, Chistov, R, Cho, IS, Cho, K, Choi, SK, Choi, Y, Dalseno, J, Doleåal, Z, Drásal, Z, Eidelman, S, Fast, JE, Gaur, V, Gabyshev, N, Goh, YM, Golob, B, Haba, J, Hayashii, H, Horii, Y, Hoshi, Y, Hou, WS, Hsiung, YB, Hyun, HJ, Inami, K, Ishikawa, A, Itoh, R, Iwabuchi, M, Iwasaki, Y, Iwashita, T, Julius, T, Kang, JH, Kawasaki, T, Kiesling, C, Kim, BH, Kim, HO, Kim, JB, Kim, JH, Kim, MJ, Kim, YJ, Kinoshita, K, Ko, BR, Koblitz, S, Kodyå, P, Korpar, S, Kouzes, RT, Kriåan, P, Krokovny, P, Kumar, R, Kumita, T, Kuzmin, A, Kwon, YJ, Lee, SH, Li, J, Li, Y, Libby, J, Liu, C, Liu, Y, Liu, ZQ, Louvot, R, McOnie, S, Miyabayashi, K, Miyata, H, Mohanty, GB, Mohapatra, D, Moll, A, Muramatsu, N, Nakano, E, Nakao, M, Natkaniec, Z, Nishida, S, Nishimura, K, Nitoh, O, Ogawa, S, Ohshima, T, Okuno, S, Olsen, SL, Pakhlov, P, Pakhlova, G, Park, CW, Park, H, Park, HK, Pedlar, TK, Pestotnik, R, Petrič, M, Piilonen, LE, Ritter, M, Sahoo, H, Sakai, Y, Santel, D, Sanuki, T, Sato, Y, Schneider, O, Schwanda, C, Senyo, K, Seon, O, Sevior, ME, Shapkin, M, Shebalin, V, Shibata, TA, Shiu, JG, Shwartz, B, Sibidanov, A, Simon, F, Smerkol, P, Sohn, YS, Sokolov, A, Solovieva, E, Starič, M, Sumihama, M, Sumiyoshi, T, Tatishvili, G, Teramoto, Y, Uchida, M, Uehara, S, Uglov, T, Unno, Y, Uno, S, Urquijo, P, Usov, Y, Vanhoefer, P, Varner, G, Wang, CH, Wang, P, Wang, XL, Watanabe, M, Watanabe, Y, Williams, KM, Won, E, Yabsley, BD, Yamashita, Y, Zhang, CC, Zhang, ZP, Zhilich, V, Zhulanov, V & Zupanc, A 2012, 'Observation of exclusive Υ(1S) and Υ(2S) decays into light hadrons', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 86, no. 3, 031102. https://doi.org/10.1103/PhysRevD.86.031102
Shen, C. P. ; Yuan, C. Z. ; Iijima, T. ; Adachi, I. ; Aihara, H. ; Asner, D. M. ; Aushev, T. ; Bakich, A. M. ; Bay, A. ; Belous, K. ; Bhuyan, B. ; Bischofberger, M. ; Bonvicini, G. ; Bozek, A. ; Bračko, M. ; Browder, T. E. ; Chang, M. C. ; Chang, P. ; Chen, A. ; Chen, P. ; Cheon, B. G. ; Chilikin, K. ; Chistov, R. ; Cho, I. S. ; Cho, K. ; Choi, S. K. ; Choi, Y. ; Dalseno, J. ; Doleåal, Z. ; Drásal, Z. ; Eidelman, S. ; Fast, J. E. ; Gaur, V. ; Gabyshev, N. ; Goh, Y. M. ; Golob, B. ; Haba, J. ; Hayashii, H. ; Horii, Y. ; Hoshi, Y. ; Hou, W. S. ; Hsiung, Y. B. ; Hyun, H. J. ; Inami, K. ; Ishikawa, A. ; Itoh, R. ; Iwabuchi, M. ; Iwasaki, Y. ; Iwashita, T. ; Julius, T. ; Kang, J. H. ; Kawasaki, T. ; Kiesling, C. ; Kim, B. H. ; Kim, H. O. ; Kim, J. B. ; Kim, J. H. ; Kim, M. J. ; Kim, Y. J. ; Kinoshita, K. ; Ko, B. R. ; Koblitz, S. ; Kodyå, P. ; Korpar, S. ; Kouzes, R. T. ; Kriåan, P. ; Krokovny, P. ; Kumar, R. ; Kumita, T. ; Kuzmin, A. ; Kwon, Y. J. ; Lee, S. H. ; Li, J. ; Li, Y. ; Libby, J. ; Liu, C. ; Liu, Y. ; Liu, Z. Q. ; Louvot, R. ; McOnie, S. ; Miyabayashi, K. ; Miyata, H. ; Mohanty, G. B. ; Mohapatra, D. ; Moll, A. ; Muramatsu, N. ; Nakano, E. ; Nakao, M. ; Natkaniec, Z. ; Nishida, S. ; Nishimura, K. ; Nitoh, O. ; Ogawa, S. ; Ohshima, T. ; Okuno, S. ; Olsen, S. L. ; Pakhlov, P. ; Pakhlova, G. ; Park, C. W. ; Park, H. ; Park, H. K. ; Pedlar, T. K. ; Pestotnik, R. ; Petrič, M. ; Piilonen, L. E. ; Ritter, M. ; Sahoo, H. ; Sakai, Y. ; Santel, D. ; Sanuki, T. ; Sato, Y. ; Schneider, O. ; Schwanda, C. ; Senyo, K. ; Seon, O. ; Sevior, M. E. ; Shapkin, M. ; Shebalin, V. ; Shibata, T. A. ; Shiu, J. G. ; Shwartz, B. ; Sibidanov, A. ; Simon, F. ; Smerkol, P. ; Sohn, Y. S. ; Sokolov, A. ; Solovieva, E. ; Starič, M. ; Sumihama, M. ; Sumiyoshi, T. ; Tatishvili, G. ; Teramoto, Y. ; Uchida, M. ; Uehara, S. ; Uglov, T. ; Unno, Y. ; Uno, S. ; Urquijo, P. ; Usov, Y. ; Vanhoefer, P. ; Varner, G. ; Wang, C. H. ; Wang, P. ; Wang, X. L. ; Watanabe, M. ; Watanabe, Y. ; Williams, K. M. ; Won, Eunil ; Yabsley, B. D. ; Yamashita, Y. ; Zhang, C. C. ; Zhang, Z. P. ; Zhilich, V. ; Zhulanov, V. ; Zupanc, A. / Observation of exclusive Υ(1S) and Υ(2S) decays into light hadrons. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2012 ; Vol. 86, No. 3.
@article{446f42e3ee3843c7b222c951e11f48d3,
title = "Observation of exclusive Υ(1S) and Υ(2S) decays into light hadrons",
abstract = "Using samples of 102×106 Υ(1S) and 158×106 Υ(2S) events collected with the Belle detector, we study exclusive hadronic decays of these two bottomonium resonances to the three-body final states {\"I}•K +K -, ωπ +π - and K *0(892)K -π +, and to the two-body Vector-Tensor states ({\"I}•f2′(1525), ωf 2(1270), ρa 2(1320) and K *0(892)K̄2*0(1430)) and Axial-vector-Pseudoscalar (K 1(1270) +K -, K 1(1400) +K - and b 1(1235) +π -) states. Signals are observed for the first time in the Υ(1S)→{\"I}•K +K -, ωπ +π -, K *0K -π +, K *0K2*0 and Υ(2S)→{\"I}•K +K -, K *0K -π + decay modes. Branching fractions are determined for all the processes, while 90{\%} confidence level upper limits are established on the branching fractions for the modes with a statistical significance less than 3σ. The ratios of the branching fractions of Υ(2S) and Υ(1S) decays into the same final state are used to test a perturbative QCD prediction for OZI-suppressed bottomonium decays.",
author = "Shen, {C. P.} and Yuan, {C. Z.} and T. Iijima and I. Adachi and H. Aihara and Asner, {D. M.} and T. Aushev and Bakich, {A. M.} and A. Bay and K. Belous and B. Bhuyan and M. Bischofberger and G. Bonvicini and A. Bozek and M. Bračko and Browder, {T. E.} and Chang, {M. C.} and P. Chang and A. Chen and P. Chen and Cheon, {B. G.} and K. Chilikin and R. Chistov and Cho, {I. S.} and K. Cho and Choi, {S. K.} and Y. Choi and J. Dalseno and Z. Dole{\aa}al and Z. Dr{\'a}sal and S. Eidelman and Fast, {J. E.} and V. Gaur and N. Gabyshev and Goh, {Y. M.} and B. Golob and J. Haba and H. Hayashii and Y. Horii and Y. Hoshi and Hou, {W. S.} and Hsiung, {Y. B.} and Hyun, {H. J.} and K. Inami and A. Ishikawa and R. Itoh and M. Iwabuchi and Y. Iwasaki and T. Iwashita and T. Julius and Kang, {J. H.} and T. Kawasaki and C. Kiesling and Kim, {B. H.} and Kim, {H. O.} and Kim, {J. B.} and Kim, {J. H.} and Kim, {M. J.} and Kim, {Y. J.} and K. Kinoshita and Ko, {B. R.} and S. Koblitz and P. Kody{\aa} and S. Korpar and Kouzes, {R. T.} and P. Kri{\aa}an and P. Krokovny and R. Kumar and T. Kumita and A. Kuzmin and Kwon, {Y. J.} and Lee, {S. H.} and J. Li and Y. Li and J. Libby and C. Liu and Y. Liu and Liu, {Z. Q.} and R. Louvot and S. McOnie and K. Miyabayashi and H. Miyata and Mohanty, {G. B.} and D. Mohapatra and A. Moll and N. Muramatsu and E. Nakano and M. Nakao and Z. Natkaniec and S. Nishida and K. Nishimura and O. Nitoh and S. Ogawa and T. Ohshima and S. Okuno and Olsen, {S. L.} and P. Pakhlov and G. Pakhlova and Park, {C. W.} 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 H. Sahoo and Y. Sakai and D. Santel and T. Sanuki and Y. Sato and O. Schneider and C. Schwanda and K. Senyo and O. Seon and Sevior, {M. E.} and M. Shapkin and V. Shebalin and Shibata, {T. A.} and Shiu, {J. G.} and B. Shwartz and A. Sibidanov and F. Simon and P. Smerkol and Sohn, {Y. S.} and A. Sokolov and E. Solovieva and M. Starič and M. Sumihama and T. Sumiyoshi and G. Tatishvili and Y. Teramoto and M. Uchida and S. Uehara and T. Uglov and Y. Unno and S. Uno and P. Urquijo and Y. Usov and P. Vanhoefer and G. Varner and Wang, {C. H.} and P. Wang and Wang, {X. L.} and M. Watanabe and Y. Watanabe and Williams, {K. M.} and Eunil Won and Yabsley, {B. D.} and Y. Yamashita and Zhang, {C. C.} and Zhang, {Z. P.} and V. Zhilich and V. Zhulanov and A. Zupanc",
year = "2012",
month = "8",
day = "15",
doi = "10.1103/PhysRevD.86.031102",
language = "English",
volume = "86",
journal = "Physical review D: Particles and fields",
issn = "0556-2821",
publisher = "American Institute of Physics Publising LLC",
number = "3",

}

TY - JOUR

T1 - Observation of exclusive Υ(1S) and Υ(2S) decays into light hadrons

AU - Shen, C. P.

AU - Yuan, C. Z.

AU - Iijima, T.

AU - Adachi, I.

AU - Aihara, H.

AU - Asner, D. M.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Bay, A.

AU - Belous, K.

AU - Bhuyan, B.

AU - Bischofberger, M.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chang, M. C.

AU - Chang, P.

AU - Chen, A.

AU - Chen, P.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Chistov, R.

AU - Cho, I. S.

AU - Cho, K.

AU - Choi, S. K.

AU - Choi, Y.

AU - Dalseno, J.

AU - Doleåal, Z.

AU - Drásal, Z.

AU - Eidelman, S.

AU - Fast, J. E.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Goh, Y. M.

AU - Golob, B.

AU - Haba, J.

AU - Hayashii, H.

AU - Horii, Y.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hsiung, Y. B.

AU - Hyun, H. J.

AU - Inami, K.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwabuchi, M.

AU - Iwasaki, Y.

AU - Iwashita, T.

AU - Julius, T.

AU - Kang, J. H.

AU - Kawasaki, T.

AU - Kiesling, C.

AU - Kim, B. H.

AU - Kim, H. O.

AU - Kim, J. B.

AU - Kim, J. H.

AU - Kim, M. J.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Ko, B. R.

AU - Koblitz, S.

AU - Kodyå, P.

AU - Korpar, S.

AU - Kouzes, R. T.

AU - Kriåan, P.

AU - Krokovny, P.

AU - Kumar, R.

AU - Kumita, T.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lee, S. H.

AU - Li, J.

AU - Li, Y.

AU - Libby, J.

AU - Liu, C.

AU - Liu, Y.

AU - Liu, Z. Q.

AU - Louvot, R.

AU - McOnie, S.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Mohanty, G. B.

AU - Mohapatra, D.

AU - Moll, A.

AU - Muramatsu, N.

AU - Nakano, E.

AU - Nakao, M.

AU - Natkaniec, Z.

AU - Nishida, S.

AU - Nishimura, K.

AU - Nitoh, O.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Park, C. W.

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 - Sahoo, H.

AU - Sakai, Y.

AU - Santel, D.

AU - Sanuki, T.

AU - Sato, Y.

AU - Schneider, O.

AU - Schwanda, C.

AU - Senyo, K.

AU - Seon, O.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shebalin, V.

AU - Shibata, T. A.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Sibidanov, A.

AU - Simon, F.

AU - Smerkol, P.

AU - Sohn, Y. S.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Starič, M.

AU - Sumihama, M.

AU - Sumiyoshi, T.

AU - Tatishvili, G.

AU - Teramoto, Y.

AU - Uchida, M.

AU - Uehara, S.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Urquijo, P.

AU - Usov, Y.

AU - Vanhoefer, P.

AU - Varner, G.

AU - Wang, C. H.

AU - Wang, P.

AU - Wang, X. L.

AU - Watanabe, M.

AU - Watanabe, Y.

AU - Williams, K. M.

AU - Won, Eunil

AU - Yabsley, B. D.

AU - Yamashita, Y.

AU - Zhang, C. C.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhulanov, V.

AU - Zupanc, A.

PY - 2012/8/15

Y1 - 2012/8/15

N2 - Using samples of 102×106 Υ(1S) and 158×106 Υ(2S) events collected with the Belle detector, we study exclusive hadronic decays of these two bottomonium resonances to the three-body final states Ï•K +K -, ωπ +π - and K *0(892)K -π +, and to the two-body Vector-Tensor states (Ï•f2′(1525), ωf 2(1270), ρa 2(1320) and K *0(892)K̄2*0(1430)) and Axial-vector-Pseudoscalar (K 1(1270) +K -, K 1(1400) +K - and b 1(1235) +π -) states. Signals are observed for the first time in the Υ(1S)→Ï•K +K -, ωπ +π -, K *0K -π +, K *0K2*0 and Υ(2S)→Ï•K +K -, K *0K -π + decay modes. Branching fractions are determined for all the processes, while 90% confidence level upper limits are established on the branching fractions for the modes with a statistical significance less than 3σ. The ratios of the branching fractions of Υ(2S) and Υ(1S) decays into the same final state are used to test a perturbative QCD prediction for OZI-suppressed bottomonium decays.

AB - Using samples of 102×106 Υ(1S) and 158×106 Υ(2S) events collected with the Belle detector, we study exclusive hadronic decays of these two bottomonium resonances to the three-body final states Ï•K +K -, ωπ +π - and K *0(892)K -π +, and to the two-body Vector-Tensor states (Ï•f2′(1525), ωf 2(1270), ρa 2(1320) and K *0(892)K̄2*0(1430)) and Axial-vector-Pseudoscalar (K 1(1270) +K -, K 1(1400) +K - and b 1(1235) +π -) states. Signals are observed for the first time in the Υ(1S)→Ï•K +K -, ωπ +π -, K *0K -π +, K *0K2*0 and Υ(2S)→Ï•K +K -, K *0K -π + decay modes. Branching fractions are determined for all the processes, while 90% confidence level upper limits are established on the branching fractions for the modes with a statistical significance less than 3σ. The ratios of the branching fractions of Υ(2S) and Υ(1S) decays into the same final state are used to test a perturbative QCD prediction for OZI-suppressed bottomonium decays.

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U2 - 10.1103/PhysRevD.86.031102

DO - 10.1103/PhysRevD.86.031102

M3 - Article

VL - 86

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 0556-2821

IS - 3

M1 - 031102

ER -