Search for the processe+e−→J/ψX(1835)ats≈10.6 GeV
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmology·2014·Vol. 89(3)
X. H. He, J. Wang, Y. Ban, P. Wang, I. Adachi, H. Aihara, D. M. Asner, V. Aulchenko, T. Aushev, A. M. Bakich, A. Bala, G. Bonvicini, A. Bożek, V. Chekelian, K. F. Chen, B. G. Cheon, K. Chilikin, Y. Choi, D. Cinabro, J. Dalseno, Z. Doležal, Z. Drásal, 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. 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. Kodyš, Soohyung 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. Petrič, L. E. Piilonen, M. Ritter, M. Röhrken, A. Rostomyan, H. Sahoo, Y. Sakai, S. Sandilya, L. Šantelj, 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. Stanič, M. Starič, 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, S. Yashchenko, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc Abstract
We report the results of a search for the $X(1835)$ state in the process ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}J/\ensuremath{\psi}X(1835)$ using a data sample of $672\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ collected with the Belle detector at and near the $\mathrm{\ensuremath{\Upsilon}}(4S)$ resonance at the KEKB asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ collider. No significant evidence is found for this process, and an upper limit is set on its cross section times the branching fraction: ${\ensuremath{\sigma}}_{\text{Born}}({e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}J/\ensuremath{\psi}X(1835))\ifmmode\cdot\else\textperiodcentered\fi{}\mathcal{B}(X(1835)\ensuremath{\rightarrow}\ensuremath{\ge}3\text{ }\text{charged tracks})<1.3\text{ }\text{ }\mathrm{fb}$ at 90% confidence level.