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Search for the process $e^{+} e^{-} \to J / ψ X (1835)$ at $\sqrt{s} \approx 10.6 GeV$

X. H. He⁴², J. Wang⁴², Y. Ban⁴², P. Wang¹³, I. Adachi⁹, H. Aihara⁵⁵, D. M. Asner⁴⁰, V. Aulchenko³, T. Aushev¹⁷ et al. (Belle Collaboration)

T. Aushev¹⁷, A. M. Bakich⁴⁹, A. Bala⁴¹, G. Bonvicini⁶¹, A. Bozek³⁵, V. Chekelian²⁶, A. Chen³², B. G. Cheon⁷, K. Chilikin¹⁷, Y. Choi⁴⁸, D. Cinabro⁶¹, J. Dalseno^26,51, Z. Doležal⁴, Z. Drásal⁴, D. Dutta¹¹, S. Eidelman³, H. Farhat⁶¹, J. E. Fast⁴⁰, T. Ferber⁶, V. Gaur⁵⁰, N. Gabyshev³, A. Garmash³, R. Gillard⁶¹, Y. M. Goh⁷, B. Golob^25,18, J. Haba⁹, H. Hayashii³¹, Y. Hoshi⁵³, W.-S. Hou³⁴, Y. B. Hsiung³⁴, A. Ishikawa⁵⁴, T. Julius²⁷, J. H. Kang⁶³, E. Kato⁵⁴, T. Kawasaki³⁷, C. Kiesling²⁶, D. Y. Kim⁴⁷, J. H. Kim²¹, M. J. Kim²³, Y. J. Kim²¹, K. Kinoshita⁵, J. Klucar¹⁸, B. R. Ko²², P. Kodyš⁴, S.-H. Lee²², J. Libby¹², Y. Liu⁵, D. Liventsev⁹, D. Matvienko³, H. Miyata³⁷, R. Mizuk^17,28, A. Moll^26,51, N. Muramatsu⁴⁴, R. Mussa¹⁶, M. Nakao⁹, M. Nayak¹², E. Nedelkovska²⁶, N. K. Nisar⁵⁰, S. Nishida⁹, O. Nitoh⁵⁸, S. Ogawa⁵², S. Okuno¹⁹, S. L. Olsen⁴⁶, G. Pakhlova¹⁷, H. Park²³, R. Pestotnik¹⁸, M. Petrič¹⁸, L. E. Piilonen⁶⁰, M. Ritter²⁶, M. Röhrken²⁰, A. Rostomyan⁶, H. Sahoo⁸, Y. Sakai⁹, S. Sandilya⁵⁰, L. Santelj¹⁸, T. Sanuki⁵⁴, V. Savinov⁴³, O. Schneider²⁴, G. Schnell^1,10, C. Schwanda¹⁴, K. Senyo⁶², O. Seon³⁰, M. Shapkin¹⁵, C. P. Shen², T.-A. Shibata⁵⁶, J.-G. Shiu³⁴, B. Shwartz³, A. Sibidanov⁴⁹, Y.-S. Sohn⁶³, E. Solovieva¹⁷, S. Stanič³⁸, M. Starič¹⁸, T. Sumiyoshi⁵⁷, U. Tamponi^16,59, K. Tanida⁴⁶, G. Tatishvili⁴⁰, Y. Teramoto³⁹, M. Uchida⁵⁶, T. Uglov^17,29, Y. Unno⁷, C. Van Hulse¹, G. Varner⁸, C. H. Wang³³, Y. Watanabe¹⁹, Y. Yamashita³⁶, S. Yashchenko⁶, C. C. Zhang¹³, Z. P. Zhang⁴⁵, V. Zhilich³, V. Zhulanov³, and A. Zupanc²⁰ (Belle Collaboration)

¹University of the Basque Country UPV/EHU, 48080 Bilbao
²Beihang University, Beijing 100191
³Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
⁴Faculty of Mathematics and Physics, Charles University, 121 16 Prague
⁵University of Cincinnati, Cincinnati, Ohio 45221
⁶Deutsches Elektronen–Synchrotron, 22607 Hamburg
⁷Hanyang University, Seoul 133-791
⁸University of Hawaii, Honolulu, Hawaii 96822
⁹High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
¹⁰IKERBASQUE, Basque Foundation for Science, 48011 Bilbao
¹¹Indian Institute of Technology Guwahati, Assam 781039
¹²Indian Institute of Technology Madras, Chennai 600036
¹³Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
¹⁴Institute of High Energy Physics, Vienna 1050
¹⁵Institute for High Energy Physics, Protvino 142281
¹⁶INFN–Sezione di Torino, 10125 Torino
¹⁷Institute for Theoretical and Experimental Physics, Moscow 117218
¹⁸J. Stefan Institute, 1000 Ljubljana
¹⁹Kanagawa University, Yokohama 221-8686
²⁰Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
²¹Korea Institute of Science and Technology Information, Daejeon 305-806
²²Korea University, Seoul 136-713
²³Kyungpook National University, Daegu 702-701
²⁴École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015
²⁵Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
²⁶Max-Planck-Institut für Physik, 80805 München
²⁷School of Physics, University of Melbourne, Victoria 3010
²⁸Moscow Physical Engineering Institute, Moscow 115409
²⁹Moscow Institute of Physics and Technology, Moscow Region 141700
³⁰Graduate School of Science, Nagoya University, Nagoya 464-8602
³¹Nara Women’s University, Nara 630-8506
³²National Central University, Chung-li 32054
³³National United University, Miao Li 36003
³⁴Department of Physics, National Taiwan University, Taipei 10617
³⁵H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
³⁶Nippon Dental University, Niigata 951-8580
³⁷Niigata University, Niigata 950-2181
³⁸University of Nova Gorica, 5000 Nova Gorica
³⁹Osaka City University, Osaka 558-8585
⁴⁰Pacific Northwest National Laboratory, Richland, Washington 99352
⁴¹Panjab University, Chandigarh 160014
⁴²Peking University, Beijing 100871
⁴³University of Pittsburgh, Pittsburgh, Pennsylvania 15260
⁴⁴Research Center for Electron Photon Science, Tohoku University, Sendai 980-8578
⁴⁵University of Science and Technology of China, Hefei 230026
⁴⁶Seoul National University, Seoul 151-742
⁴⁷Soongsil University, Seoul 156-743
⁴⁸Sungkyunkwan University, Suwon 440-746
⁴⁹School of Physics, University of Sydney, NSW 2006
⁵⁰Tata Institute of Fundamental Research, Mumbai 400005
⁵¹Excellence Cluster Universe, Technische Universität München, 85748 Garching
⁵²Toho University, Funabashi 274-8510
⁵³Tohoku Gakuin University, Tagajo 985-8537
⁵⁴Tohoku University, Sendai 980-8578
⁵⁵Department of Physics, University of Tokyo, Tokyo 113-0033
⁵⁶Tokyo Institute of Technology, Tokyo 152-8550
⁵⁷Tokyo Metropolitan University, Tokyo 192-0397
⁵⁸Tokyo University of Agriculture and Technology, Tokyo 184-8588
⁵⁹University of Torino, 10124 Torino
⁶⁰CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
⁶¹Wayne State University, Detroit, Michigan 48202
⁶²Yamagata University, Yamagata 990-8560
⁶³Yonsei University, Seoul 120-749

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Phys. Rev. D 89, 032003 – Published 24 February, 2014

DOI: https://doi.org/10.1103/PhysRevD.89.032003

Abstract

We report the results of a search for the $X (1835)$ state in the process $e^{+} e^{-} \to J / ψ X (1835)$ using a data sample of $672 {fb}^{- 1}$ collected with the Belle detector at and near the $ϒ (4 S)$ resonance at the KEKB asymmetric-energy $e^{+} e^{-}$ collider. No significant evidence is found for this process, and an upper limit is set on its cross section times the branching fraction: $σ_{Born} (e^{+} e^{-} \to J / ψ X (1835)) \cdot B (X (1835) \to \geq 3 charged tracks) < 1.3 fb$ at 90% confidence level.

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Search for the process $e^{+} e^{-} \to J / ψ X (1835)$ at $\sqrt{s} \approx 10.6 GeV$

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Search for the process e+e−→J/ψX(1835) at s≈10.6 GeV

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Search for the process $e^{+} e^{-} \to J / ψ X (1835)$ at $\sqrt{s} \approx 10.6 GeV$