Search for the process e^+e^-to J/psi + X(1835) at sqrt{s}approx10.6GeV

Belle Collaboration : X. H. He , J. Wang , Y. Ban , P. Wang , I. Adachi , H. Aihara , D. M. Asner , V. Aulchenko

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T. Aushev A. M. Bakich A. Bala G. Bonvicini A. Bozek V. Chekelian A. Chen B. G. Cheon K. Chilikin Y. Choi D. Cinabro J. Dalseno Z. Dole\v{z}al Z. Dr\'asal D. Dutta S. Eidelman H. Farhat J. E. Fast T. Ferber V. Gaur N. Gabyshev A. Garmash R. Gillard Y. M. Goh B. Golob J. Haba H. Hayashii Y. Hoshi W.-S. Hou Y. B. Hsiung A. Ishikawa T. Julius J. H. Kang E. Kato T. Kawasaki C. Kiesling D. Y. Kim J. H. Kim M. J. Kim Y. J. Kim K. Kinoshita J. Klucar B. R. Ko P. Kody\v{s} S.-H. Lee J. Libby Y. Liu D. Liventsev D. Matvienko H. Miyata R. Mizuk A. Moll N. Muramatsu R. Mussa M. Nakao M. Nayak E. Nedelkovska N. K. Nisar S. Nishida O. Nitoh S. Ogawa S. Okuno S. L. Olsen G. Pakhlova H. Park R. Pestotnik M. Petri\v{c} L. E. Piilonen M. Ritter M. R\"ohrken A. Rostomyan H. Sahoo Y. Sakai S. Sandilya L. Santelj T. Sanuki V. Savinov O. Schneider G. Schnell C. Schwanda K. Senyo O. Seon M. Shapkin C. P. Shen T.-A. Shibata J.-G. Shiu B. Shwartz A. Sibidanov Y.-S. Sohn E. Solovieva S. Stani\v{c} M. Stari\v{c} T. Sumiyoshi U. Tamponi K. Tanida G. Tatishvili Y. Teramoto M. Uchida T. Uglov Y. Unno C. Van Hulse G. Varner C. H. Wang Y. Watanabe Y. Yamashita C. C. Zhang Z. P. Zhang V. Zhilich V. Zhulanov A. Zupanc

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classification ✦ hep-ex

keywords processsearchapprox10asymmetric-energybellebornbranchingcdot

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We report the results of a search for the $X(1835)$ state in the process $e^+e^-\to J/\psi+X(1835)$ using a data sample of 672 fb$^{-1}$ collected with the Belle detector at and near the $\Upsilon(4S)$ 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: $\sigma_{\rm Born}(e^+e^- \to J/\psi X(1835)) \cdot$ {${\cal B}(X(1835)\to \ge 3$ charged tracks)} $< 1.3 \ {\rm fb}$ at 90% confidence level.

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Search for the process e^+e^-to J/psi + X(1835) at sqrt{s}approx10.6GeV

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