Observation of the ψ(4415)→DD̄2*(2460) decay using initial-state radiation

G. Pakhlova, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, I. Bedny, K. Belous, U. Bitenc, A. Bondar, M. Bračko, J. Brodzicka, T. E. Browder, A. Chen, W. T. Chen, B. G. Cheon, C. C. ChiangR. Chistov, I. S. Cho, Y. Choi, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, D. Epifanov, N. Gabyshev, B. Golob, H. Ha, J. Haba, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, N. J. Joshi, D. H. Kah, J. H. Kang, T. Kawasaki, A. Kibayashi, H. Kichimi, H. J. Kim, H. O. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y. J. Kwon, J. S. Lange, M. J. Lee, S. E. Lee, T. Lesiak, S. W. Lin, D. Liventsev, F. Mandl, D. Marlow, S. McOnie, T. Medvedeva, H. Miyake, R. Mizuk, D. Mohapatra, G. R. Moloney, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, H. Park, K. S. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, Y. Sakai, O. Schneider, C. Schwanda, K. Senyo, M. Shapkin, C. P. Shen, H. Shibuya, J. G. Shiu, B. Shwartz, J. B. Singh, A. Somov, S. Stanič, T. Sumiyoshi, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, Y. Usov, G. Varner, A. Vinokurova, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C. Z. Yuan, C. C. Zhang, L. M. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc

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Abstract

We report measurements of the exclusive cross section for e+e-→D0D-π+ over the center-of-mass energy range 4.0 GeV to 5.0 GeV with initial-state radiation and the first observation of the decay ψ(4415)→D0D-π+. From a study of the resonant substructure in ψ(4415) decay we conclude that the ψ(4415)→D0D-π+ decay is dominated by ψ(4415)→DD̄2*(2460). We obtain B(ψ(4415)→D0D-πnonresonant+)/B(ψ(4415)→DD̄ 2*(2460)→D0D-π+)<0.22 at 90% C.L. The analysis is based on a data sample collected with the Belle detector with an integrated luminosity of 673fb-1.

Original languageEnglish
Article number062001
JournalPhysical Review Letters
Volume100
Issue number6
DOIs
Publication statusPublished - 2008 Feb 13

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Pakhlova, G., Adachi, I., Aihara, H., Arinstein, K., Aulchenko, V., Aushev, T., Bakich, A. M., Balagura, V., Barberio, E., Bedny, I., Belous, K., Bitenc, U., Bondar, A., Bračko, M., Brodzicka, J., Browder, T. E., Chen, A., Chen, W. T., Cheon, B. G., ... Zupanc, A. (2008). Observation of the ψ(4415)→DD̄2*(2460) decay using initial-state radiation. Physical Review Letters, 100(6), [062001]. https://doi.org/10.1103/PhysRevLett.100.062001