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ISSN - 15507998, Physical Review D - Particles, Fields, Gravitation and Cosmology, 2014, vol. 89, p. -

Search for the process e + e - → J / ψ X (1835) at s ≈ 10.6 GeV

He X. H., Wang J., Ban Y., Wang P., Adachi I., Aihara H., Asner D. M., Aulchenko V., Aushev T., Bakich A. M., Bala A., Bonvicini G., Bozek A., Chekelian V., Chen A., Cheon B. G., Chilikin K., Choi Y., Cinabro D., Dalseno J., Doležal Z., Drásal Z., Dutta D., Eidelman S., Farhat H., Fast J. E., Ferber T., Gaur V., Gabyshev N., Garmash A., Gillard R., Goh Y. M., Golob B., Haba J., Hayashii H., Hoshi Y., Hou W. S., Hsiung Y. B., Ishikawa A., Julius T., Kang J. H., Kato E., Kawasaki T., Kiesling C., Kim D. Y., Kim J. H., Kim M. J., Kim Y. J., Kinoshita K., Klucar J., Ko B. R., Kodyš P., Lee S. H., Libby J., Liu Y., Liventsev D., Matvienko D., Miyata H., Mizuk R., Moll A., Muramatsu N., Mussa R., Nakao M., Nayak M., Nedelkovska E., Nisar N. K., Nishida S., Nitoh O., Ogawa S., Okuno S., Olsen S. L., Pakhlova G., Park H., Pestotnik R., Petrič M., Piilonen L. E., Ritter M., Röhrken M., Rostomyan A., Sahoo H., Sakai Y., Sandilya S., Santelj L., Sanuki T., Savinov V., Schneider O., Schnell G., Schwanda C., Senyo K., Seon O., Shapkin M., Shen C. P., Shibata T. A., Shiu J. G., Shwartz B.

We report the results of a search for the X(1835) state in the process e+e-→J/ψX(1835) using a data sample of 672 fb-1 collected with the Belle detector at and near the Ï (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: σBorn(e+e-→J/ψX(1835))·B(X(1835)→≥3 charged tracks)<1.3 fb at 90% confidence level. © 2014 American Physical Society.