Study of η and dipion transitions in ϒ(4S) decays to lower bottomonia

E. Guido; R. Mussa; U. Tamponi; I. Adachi; H. Aihara; S. Al Said; D. M. Asner; V. Aulchenko; T. Aushev; R. Ayad; I. Badhrees; A. M. Bakich; V. Bansal; P. Behera; V. Bhardwaj; B. Bhuyan; J. Biswal; A. Bobrov; A. Bondar; A. Bozek; M. Bračko; T. E. Browder; D. Červenkov; V. Chekelian; A. Chen; B. G. Cheon; K. Chilikin; K. Cho; S. K. Choi; Y. Choi; D. Cinabro; N. Dash; S. Di Carlo; Z. DoleŽal; Z. Drásal; S. Eidelman; D. Epifanov; H. Farhat; J. E. Fast; T. Ferber; B. G. Fulsom; V. Gaur; N. Gabyshev; A. Garmash; M. Gelb; R. Gillard; P. Goldenzweig; J. Haba; T. Hara; K. Hayasaka; H. Hayashii; M. T. Hedges; W. S. Hou; T. Iijima; K. Inami; G. Inguglia; A. Ishikawa; R. Itoh; Y. Iwasaki; W. W. Jacobs; I. Jaegle; H. B. Jeon; S. Jia; Y. Jin; D. Joffe; K. K. Joo; T. Julius; K. H. Kang; G. Karyan; T. Kawasaki; D. Y. Kim; J. B. Kim; K. T. Kim; M. J. Kim; S. H. Kim; Y. J. Kim; K. Kinoshita; P. Kodyš; S. Korpar; D. Kotchetkov; P. KriŽan; P. Krokovny; R. Kulasiri; T. Kumita; A. Kuzmin; Y. J. Kwon; J. S. Lange; P. Lewis; C. H. Li; L. Li; L. Li Gioi; J. Libby; D. Liventsev; M. Lubej; T. Luo; M. Masuda; T. Matsuda; D. Matvienko; M. Merola; K. Miyabayashi; H. Miyata; R. Mizuk; H. K. Moon; T. Mori; E. Nakano; M. Nakao; T. Nanut; K. J. Nath; Z. Natkaniec; M. Nayak; M. Niiyama; N. K. Nisar; S. Nishida; S. Ogawa; H. Ono; P. Pakhlov; G. Pakhlova; B. Pal; S. Pardi; C. S. Park; H. Park; S. Paul; T. K. Pedlar; R. Pestotnik; L. E. Piilonen; C. Pulvermacher; M. Ritter; A. Rostomyan; Y. Sakai; S. Sandilya; L. Santelj; T. Sanuki; V. Savinov; O. Schneider; G. Schnell; C. Schwanda; Y. Seino; K. Senyo; M. E. Sevior; V. Shebalin; C. P. Shen; T. A. Shibata; J. G. Shiu; B. Shwartz; F. Simon; A. Sokolov; E. Solovieva; M. Starič; J. F. Strube; K. Sumisawa; T. Sumiyoshi; M. Takizawa; K. Tanida; F. Tenchini; K. Trabelsi; M. Uchida; T. Uglov; Y. Unno; S. Uno; Y. Usov; C. Van Hulse; G. Varner; A. Vinokurova; V. Vorobyev; A. Vossen; C. H. Wang; P. Wang; X. L. Wang; M. Watanabe; Y. Watanabe; S. Watanuki; E. Widmann; K. M. Williams; E. Won; Y. Yamashita; H. Ye; C. Z. Yuan; Z. P. Zhang; V. Zhilich; V. Zhukova; V. Zhulanov; A. Zupanc

doi:10.1103/PhysRevD.96.052005

Study of η and dipion transitions in ϒ(4S) decays to lower bottomonia

E. Guido
, R. Mussa
, U. Tamponi
, I. Adachi
, H. Aihara
, S. Al Said
, D. M. Asner
, V. Aulchenko
, T. Aushev
, R. Ayad
, I. Badhrees
, A. M. Bakich
, V. Bansal
, P. Behera
, V. Bhardwaj
, B. Bhuyan
, J. Biswal
, A. Bobrov
, A. Bondar
, A. Bozek

M. Bračko, T. E. Browder, D. Červenkov, V. Chekelian, A. Chen, B. G. Cheon, K. Chilikin, K. Cho, S. K. Choi, Y. Choi, D. Cinabro, N. Dash, S. Di Carlo, Z. DoleŽal, Z. Drásal, S. Eidelman, D. Epifanov, H. Farhat, J. E. Fast, T. Ferber, B. G. Fulsom, V. Gaur, N. Gabyshev, A. Garmash, M. Gelb, R. Gillard, P. Goldenzweig, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. T. Hedges, W. S. Hou, T. Iijima, K. Inami, G. Inguglia, A. Ishikawa, R. Itoh, Y. Iwasaki, W. W. Jacobs, I. Jaegle, H. B. Jeon, S. Jia, Y. Jin, D. Joffe, K. K. Joo, T. Julius, K. H. Kang, G. Karyan, T. Kawasaki, D. Y. Kim, J. B. Kim, K. T. Kim, M. J. Kim, S. H. Kim, Y. J. Kim, K. Kinoshita, P. Kodyš, S. Korpar, D. Kotchetkov, P. KriŽan, P. Krokovny, R. Kulasiri, T. Kumita, A. Kuzmin, Y. J. Kwon, J. S. Lange, P. Lewis, C. H. Li, L. Li, L. Li Gioi, J. Libby, D. Liventsev, M. Lubej, T. Luo, M. Masuda, T. Matsuda, D. Matvienko, M. Merola, K. Miyabayashi, H. Miyata, R. Mizuk, H. K. Moon, T. Mori, E. Nakano, M. Nakao, T. Nanut, K. J. Nath, Z. Natkaniec, M. Nayak, M. Niiyama, N. K. Nisar, S. Nishida, S. Ogawa, H. Ono, P. Pakhlov, G. Pakhlova, B. Pal, S. Pardi, C. S. Park, H. Park, S. Paul, T. K. Pedlar, R. Pestotnik, L. E. Piilonen, C. Pulvermacher, M. Ritter, A. Rostomyan, Y. Sakai, S. Sandilya, L. Santelj, T. Sanuki, V. Savinov, O. Schneider, G. Schnell, C. Schwanda, Y. Seino, K. Senyo, M. E. Sevior, V. Shebalin, C. P. Shen, T. A. Shibata, J. G. Shiu, B. Shwartz, F. Simon, A. Sokolov, E. Solovieva, M. Starič, J. F. Strube, K. Sumisawa, T. Sumiyoshi, M. Takizawa, K. Tanida, F. Tenchini, K. Trabelsi, M. Uchida, T. Uglov, Y. Unno, S. Uno, Y. Usov, C. Van Hulse, G. Varner, A. Vinokurova, V. Vorobyev, A. Vossen, C. H. Wang, P. Wang, X. L. Wang, M. Watanabe, Y. Watanabe, S. Watanuki, E. Widmann, K. M. Williams, E. Won, Y. Yamashita, H. Ye, C. Z. Yuan, Z. P. Zhang, V. Zhilich, V. Zhukova, V. Zhulanov, A. Zupanc

National Institute for Nuclear Physics
University of Turin
The Graduate University for Advanced Studies
High Energy Accelerator Research Organization, Tsukuba
The University of Tokyo
King Abdulaziz University
University of Tabuk
Pacific Northwest National Laboratory
RAS - Budker Institute of Nuclear Physics
Novosibirsk State University
Moscow Institute of Physics and Technology
King Abdulaziz City for Science and Technology
The University of Sydney
Indian Institute of Technology Madras
Indian Institute of Science Education and Research Mohali
Indian Institute of Technology Guwahati
Jožef Stefan Institute
H. Niewodniczanski Institute of Nuclear Physics
University of Maribor
University of Hawai'i at Mānoa
Charles University
Max Planck Institute for Physics (Werner Heisenberg Institute)
National Central University
Hanyang University
RAS - P.N. Lebedev Physics Institute
Moscow Engineering Physics Institute
Korea Institute of Science and Technology Information
Gyeongsang National University
Sungkyunkwan University
Wayne State University
Indian Institute of Technology Bhubaneswar
German Electron Synchrotron
Virginia Polytechnic Institute and State University
Karlsruhe Institute of Technology
Niigata University
Nara Women's University
National Taiwan University
Nagoya University
Tohoku University
Indiana University Bloomington
University of Florida
Kyungpook National University
Beihang University
Kennesaw State University
Chonnam National University
University of Melbourne
Soongsil University
Korea University
University of Cincinnati
University of Ljubljana
Tokyo Metropolitan University
Yonsei University
Justus Liebig University Giessen
University of Science and Technology of China
University of Pittsburgh
University of Miyazaki
Osaka Metropolitan University
Kyoto University
Toho University
Nippon Dental University
Technical University of Munich
Luther College, Decorah
Ludwig Maximilian University of Munich
Swiss Federal Institute of Technology Lausanne
University of the Basque Country
Ikerbasque Basque Foundation for Science
Austrian Academy of Sciences
Yamagata University
Institute of Science Tokyo
Technische Universität München
Institute for High Energy Physics
RIKEN
Showa Pharmaceutical University
Japan Atomic Energy Agency
National United University Taiwan
CAS - Institute of High Energy Physics
Kanagawa University

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

25 Scopus citations

Abstract

We study hadronic transitions between bottomonium states using 496 fb-1 data collected at the ?(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e-collider. We measure B(?(4S)→π+π(1S))=(8.2±0.5(stat)±0.4(syst))×10-5, B(?(4S)→π+π(2S))=(7.9±1.0(stat)±0.4(syst))×10-5, and B(?(4S)→η?(1S))=(1.70±0.23(stat)±0.08(syst))×10-4. We measure the ratio of branching fractions R=B(?(4S)→η?(1S))/B(?(4S)→π+π(1S))=2.07±0.30(stat)±0.11(syst). We search for the decay ?(1D31,2)→η?(1S), but do not find significant evidence for such a transition. We also measure the initial-state radiation production cross sections of the ?(2S,3S) resonances and we find values compatible with the expected ones. Finally, the analysis of the ?(4S)→π+π(1S) events shows indications for a resonant contribution due to the f0(980) meson.

Original language	English
Article number	052005
Journal	Physical Review D
Volume	96
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.96.052005
State	Published - 1 Sep 2017

Access to Document

10.1103/PhysRevD.96.052005

Cite this

Guido, E., Mussa, R., Tamponi, U., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Badhrees, I., Bakich, A. M., Bansal, V., Behera, P., Bhardwaj, V., Bhuyan, B., Biswal, J., Bobrov, A., Bondar, A., ... Zupanc, A. (2017). Study of η and dipion transitions in ϒ(4S) decays to lower bottomonia. Physical Review D, 96(5), Article 052005. https://doi.org/10.1103/PhysRevD.96.052005

@article{ca427cd85b934f8a8f6d226cb22737fd,

title = "Study of η and dipion transitions in ϒ(4S) decays to lower bottomonia",

abstract = "We study hadronic transitions between bottomonium states using 496 fb-1 data collected at the ?(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e-collider. We measure B(?(4S)→π+π(1S))=(8.2±0.5(stat)±0.4(syst))×10-5, B(?(4S)→π+π(2S))=(7.9±1.0(stat)±0.4(syst))×10-5, and B(?(4S)→η?(1S))=(1.70±0.23(stat)±0.08(syst))×10-4. We measure the ratio of branching fractions R=B(?(4S)→η?(1S))/B(?(4S)→π+π(1S))=2.07±0.30(stat)±0.11(syst). We search for the decay ?(1D31,2)→η?(1S), but do not find significant evidence for such a transition. We also measure the initial-state radiation production cross sections of the ?(2S,3S) resonances and we find values compatible with the expected ones. Finally, the analysis of the ?(4S)→π+π(1S) events shows indications for a resonant contribution due to the f0(980) meson.",

author = "E. Guido and R. Mussa and U. Tamponi and I. Adachi and H. Aihara and \{Al Said\}, S. and Asner, \{D. M.\} and V. Aulchenko and T. Aushev and R. Ayad and I. Badhrees and Bakich, \{A. M.\} and V. Bansal and P. Behera and V. Bhardwaj and B. Bhuyan and J. Biswal and A. Bobrov and A. Bondar and A. Bozek and M. Bra{\v c}ko and Browder, \{T. E.\} and D. {\v C}ervenkov and V. Chekelian and A. Chen and Cheon, \{B. G.\} and K. Chilikin and K. Cho and Choi, \{S. K.\} and Y. Choi and D. Cinabro and N. Dash and \{Di Carlo\}, S. and Z. Dole{\v Z}al and Z. Dr{\'a}sal and S. Eidelman and D. Epifanov and H. Farhat and Fast, \{J. E.\} and T. Ferber and Fulsom, \{B. G.\} and V. Gaur and N. Gabyshev and A. Garmash and M. Gelb and R. Gillard and P. Goldenzweig and J. Haba and T. Hara and K. Hayasaka and H. Hayashii and Hedges, \{M. T.\} and Hou, \{W. S.\} and T. Iijima and K. Inami and G. Inguglia and A. Ishikawa and R. Itoh and Y. Iwasaki and Jacobs, \{W. W.\} and I. Jaegle and Jeon, \{H. B.\} and S. Jia and Y. Jin and D. Joffe and Joo, \{K. K.\} and T. Julius and Kang, \{K. H.\} and G. Karyan and T. Kawasaki and Kim, \{D. Y.\} and Kim, \{J. B.\} and Kim, \{K. T.\} and Kim, \{M. J.\} and Kim, \{S. H.\} and Kim, \{Y. J.\} and K. Kinoshita and P. Kody{\v s} and S. Korpar and D. Kotchetkov and P. Kri{\v Z}an and P. Krokovny and R. Kulasiri and T. Kumita and A. Kuzmin and Kwon, \{Y. J.\} and Lange, \{J. S.\} and P. Lewis and Li, \{C. H.\} and L. Li and \{Li Gioi\}, L. and J. Libby and D. Liventsev and M. Lubej and T. Luo and M. Masuda and T. Matsuda and D. Matvienko and M. Merola and K. Miyabayashi and H. Miyata and R. Mizuk and Moon, \{H. K.\} and T. Mori and E. Nakano and M. Nakao and T. Nanut and Nath, \{K. J.\} and Z. Natkaniec and M. Nayak and M. Niiyama and Nisar, \{N. K.\} and S. Nishida and S. Ogawa and H. Ono and P. Pakhlov and G. Pakhlova and B. Pal and S. Pardi and Park, \{C. S.\} and H. Park and S. Paul and Pedlar, \{T. K.\} and R. Pestotnik and Piilonen, \{L. E.\} and C. Pulvermacher and M. Ritter and A. Rostomyan and Y. Sakai and S. Sandilya and L. Santelj and T. Sanuki and V. Savinov and O. Schneider and G. Schnell and C. Schwanda and Y. Seino and K. Senyo and Sevior, \{M. E.\} and V. Shebalin and Shen, \{C. P.\} and Shibata, \{T. A.\} and Shiu, \{J. G.\} and B. Shwartz and F. Simon and A. Sokolov and E. Solovieva and M. Stari{\v c} and Strube, \{J. F.\} and K. Sumisawa and T. Sumiyoshi and M. Takizawa and K. Tanida and F. Tenchini and K. Trabelsi and M. Uchida and T. Uglov and Y. Unno and S. Uno and Y. Usov and \{Van Hulse\}, C. and G. Varner and A. Vinokurova and V. Vorobyev and A. Vossen and Wang, \{C. H.\} and P. Wang and Wang, \{X. L.\} and M. Watanabe and Y. Watanabe and S. Watanuki and E. Widmann and Williams, \{K. M.\} and E. Won and Y. Yamashita and H. Ye and Yuan, \{C. Z.\} and Zhang, \{Z. P.\} and V. Zhilich and V. Zhukova and V. Zhulanov and A. Zupanc",

note = "Publisher Copyright: {\textcopyright} 2017 American Physical Society.",

year = "2017",

month = sep,

day = "1",

doi = "10.1103/PhysRevD.96.052005",

language = "English",

volume = "96",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "5",

}

Guido, E, Mussa, R, Tamponi, U, Adachi, I, Aihara, H, Al Said, S, Asner, DM, Aulchenko, V, Aushev, T, Ayad, R, Badhrees, I, Bakich, AM, Bansal, V, Behera, P, Bhardwaj, V, Bhuyan, B, Biswal, J, Bobrov, A, Bondar, A, Bozek, A, Bračko, M, Browder, TE, Červenkov, D, Chekelian, V, Chen, A, Cheon, BG, Chilikin, K, Cho, K, Choi, SK, Choi, Y, Cinabro, D, Dash, N, Di Carlo, S, DoleŽal, Z, Drásal, Z, Eidelman, S, Epifanov, D, Farhat, H, Fast, JE, Ferber, T, Fulsom, BG, Gaur, V, Gabyshev, N, Garmash, A, Gelb, M, Gillard, R, Goldenzweig, P, Haba, J, Hara, T, Hayasaka, K, Hayashii, H, Hedges, MT, Hou, WS, Iijima, T, Inami, K, Inguglia, G, Ishikawa, A, Itoh, R, Iwasaki, Y, Jacobs, WW, Jaegle, I, Jeon, HB, Jia, S, Jin, Y, Joffe, D, Joo, KK, Julius, T, Kang, KH, Karyan, G, Kawasaki, T, Kim, DY, Kim, JB, Kim, KT, Kim, MJ, Kim, SH, Kim, YJ, Kinoshita, K, Kodyš, P, Korpar, S, Kotchetkov, D, KriŽan, P, Krokovny, P, Kulasiri, R, Kumita, T, Kuzmin, A, Kwon, YJ, Lange, JS, Lewis, P, Li, CH, Li, L, Li Gioi, L, Libby, J, Liventsev, D, Lubej, M, Luo, T, Masuda, M, Matsuda, T, Matvienko, D, Merola, M, Miyabayashi, K, Miyata, H, Mizuk, R, Moon, HK, Mori, T, Nakano, E, Nakao, M, Nanut, T, Nath, KJ, Natkaniec, Z, Nayak, M, Niiyama, M, Nisar, NK, Nishida, S, Ogawa, S, Ono, H, Pakhlov, P, Pakhlova, G, Pal, B, Pardi, S, Park, CS, Park, H, Paul, S, Pedlar, TK, Pestotnik, R, Piilonen, LE, Pulvermacher, C, Ritter, M, Rostomyan, A, Sakai, Y, Sandilya, S, Santelj, L, Sanuki, T, Savinov, V, Schneider, O, Schnell, G, Schwanda, C, Seino, Y, Senyo, K, Sevior, ME, Shebalin, V, Shen, CP, Shibata, TA, Shiu, JG, Shwartz, B, Simon, F, Sokolov, A, Solovieva, E, Starič, M, Strube, JF, Sumisawa, K, Sumiyoshi, T, Takizawa, M, Tanida, K, Tenchini, F, Trabelsi, K, Uchida, M, Uglov, T, Unno, Y, Uno, S, Usov, Y, Van Hulse, C, Varner, G, Vinokurova, A, Vorobyev, V, Vossen, A, Wang, CH, Wang, P, Wang, XL, Watanabe, M, Watanabe, Y, Watanuki, S, Widmann, E, Williams, KM, Won, E, Yamashita, Y, Ye, H, Yuan, CZ, Zhang, ZP, Zhilich, V, Zhukova, V, Zhulanov, V & Zupanc, A 2017, 'Study of η and dipion transitions in ϒ(4S) decays to lower bottomonia', Physical Review D, vol. 96, no. 5, 052005. https://doi.org/10.1103/PhysRevD.96.052005

TY - JOUR

T1 - Study of η and dipion transitions in ϒ(4S) decays to lower bottomonia

AU - Guido, E.

AU - Mussa, R.

AU - Tamponi, U.

AU - Adachi, I.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Ayad, R.

AU - Badhrees, I.

AU - Bakich, A. M.

AU - Bansal, V.

AU - Behera, P.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Biswal, J.

AU - Bobrov, A.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Červenkov, D.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, K.

AU - Choi, S. K.

AU - Choi, Y.

AU - Cinabro, D.

AU - Dash, N.

AU - Di Carlo, S.

AU - DoleŽal, Z.

AU - Drásal, Z.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Farhat, H.

AU - Fast, J. E.

AU - Ferber, T.

AU - Fulsom, B. G.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Gelb, M.

AU - Gillard, R.

AU - Goldenzweig, P.

AU - Haba, J.

AU - Hara, T.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hedges, M. T.

AU - Hou, W. S.

AU - Iijima, T.

AU - Inami, K.

AU - Inguglia, G.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, Y.

AU - Jacobs, W. W.

AU - Jaegle, I.

AU - Jeon, H. B.

AU - Jia, S.

AU - Jin, Y.

AU - Joffe, D.

AU - Joo, K. K.

AU - Julius, T.

AU - Kang, K. H.

AU - Karyan, G.

AU - Kawasaki, T.

AU - Kim, D. Y.

AU - Kim, J. B.

AU - Kim, K. T.

AU - Kim, M. J.

AU - Kim, S. H.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Kodyš, P.

AU - Korpar, S.

AU - Kotchetkov, D.

AU - KriŽan, P.

AU - Krokovny, P.

AU - Kulasiri, R.

AU - Kumita, T.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lange, J. S.

AU - Lewis, P.

AU - Li, C. H.

AU - Li, L.

AU - Li Gioi, L.

AU - Libby, J.

AU - Liventsev, D.

AU - Lubej, M.

AU - Luo, T.

AU - Masuda, M.

AU - Matsuda, T.

AU - Matvienko, D.

AU - Merola, M.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Mizuk, R.

AU - Moon, H. K.

AU - Mori, T.

AU - Nakano, E.

AU - Nakao, M.

AU - Nanut, T.

AU - Nath, K. J.

AU - Natkaniec, Z.

AU - Nayak, M.

AU - Niiyama, M.

AU - Nisar, N. K.

AU - Nishida, S.

AU - Ogawa, S.

AU - Ono, H.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Pal, B.

AU - Pardi, S.

AU - Park, C. S.

AU - Park, H.

AU - Paul, S.

AU - Pedlar, T. K.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Pulvermacher, C.

AU - Ritter, M.

AU - Rostomyan, A.

AU - Sakai, Y.

AU - Sandilya, S.

AU - Santelj, L.

AU - Sanuki, T.

AU - Savinov, V.

AU - Schneider, O.

AU - Schnell, G.

AU - Schwanda, C.

AU - Seino, Y.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shebalin, V.

AU - Shen, C. P.

AU - Shibata, T. A.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Simon, F.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Starič, M.

AU - Strube, J. F.

AU - Sumisawa, K.

AU - Sumiyoshi, T.

AU - Takizawa, M.

AU - Tanida, K.

AU - Tenchini, F.

AU - Trabelsi, K.

AU - Uchida, M.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Usov, Y.

AU - Van Hulse, C.

AU - Varner, G.

AU - Vinokurova, A.

AU - Vorobyev, V.

AU - Vossen, A.

AU - Wang, C. H.

AU - Wang, P.

AU - Wang, X. L.

AU - Watanabe, M.

AU - Watanabe, Y.

AU - Watanuki, S.

AU - Widmann, E.

AU - Williams, K. M.

AU - Won, E.

AU - Yamashita, Y.

AU - Ye, H.

AU - Yuan, C. Z.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhukova, V.

AU - Zhulanov, V.

AU - Zupanc, A.

PY - 2017/9/1

Y1 - 2017/9/1

N2 - We study hadronic transitions between bottomonium states using 496 fb-1 data collected at the ?(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e-collider. We measure B(?(4S)→π+π(1S))=(8.2±0.5(stat)±0.4(syst))×10-5, B(?(4S)→π+π(2S))=(7.9±1.0(stat)±0.4(syst))×10-5, and B(?(4S)→η?(1S))=(1.70±0.23(stat)±0.08(syst))×10-4. We measure the ratio of branching fractions R=B(?(4S)→η?(1S))/B(?(4S)→π+π(1S))=2.07±0.30(stat)±0.11(syst). We search for the decay ?(1D31,2)→η?(1S), but do not find significant evidence for such a transition. We also measure the initial-state radiation production cross sections of the ?(2S,3S) resonances and we find values compatible with the expected ones. Finally, the analysis of the ?(4S)→π+π(1S) events shows indications for a resonant contribution due to the f0(980) meson.

AB - We study hadronic transitions between bottomonium states using 496 fb-1 data collected at the ?(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e-collider. We measure B(?(4S)→π+π(1S))=(8.2±0.5(stat)±0.4(syst))×10-5, B(?(4S)→π+π(2S))=(7.9±1.0(stat)±0.4(syst))×10-5, and B(?(4S)→η?(1S))=(1.70±0.23(stat)±0.08(syst))×10-4. We measure the ratio of branching fractions R=B(?(4S)→η?(1S))/B(?(4S)→π+π(1S))=2.07±0.30(stat)±0.11(syst). We search for the decay ?(1D31,2)→η?(1S), but do not find significant evidence for such a transition. We also measure the initial-state radiation production cross sections of the ?(2S,3S) resonances and we find values compatible with the expected ones. Finally, the analysis of the ?(4S)→π+π(1S) events shows indications for a resonant contribution due to the f0(980) meson.

UR - https://www.scopus.com/pages/publications/85031091142

U2 - 10.1103/PhysRevD.96.052005

DO - 10.1103/PhysRevD.96.052005

M3 - Article

AN - SCOPUS:85031091142

SN - 2470-0010

VL - 96

JO - Physical Review D

JF - Physical Review D

IS - 5

M1 - 052005

ER -

Study of η and dipion transitions in ϒ(4S) decays to lower bottomonia

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