Observation of two charged bottomoniumlike resonances in Y(5S) decays

A. Bondar, A. Garmash, R. Mizuk, D. Santel, K. Kinoshita, I. Adachi, H. Aihara, K. Arinstein, D. M. Asner, T. Aushev, T. Aziz, A. M. Bakich, E. Barberio, K. Belous, V. Bhardwaj, M. Bischofberger, A. Bozek, M. Bračko, T. E. Browder, M. C. ChangP. Chang, A. Chen, B. G. Cheon, K. Chilikin, R. Chistov, I. S. Cho, K. Cho, S. K. Choi, Y. Choi, J. Dalseno, M. Danilov, Z. Doleal, A. Drutskoy, S. Eidelman, D. Epifanov, J. E. Fast, V. Gaur, N. Gabyshev, Y. M. Goh, B. Golob, J. Haba, T. Hara, K. Hayasaka, Y. Hoshi, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, M. Iwabuchi, Y. Iwasaki, T. Iwashita, T. Julius, J. H. Kang, T. Kawasaki, H. Kichimi, C. Kiesling, J. B. Kim, J. H. Kim, K. T. Kim, M. J. Kim, Y. J. Kim, B. R. Ko, N. Kobayashi, S. Koblitz, P. Kody, S. Korpar, P. Krian, T. Kuhr, R. Kumar, T. Kumita, A. Kuzmin, J. S. Lange, S. H. Lee, J. Li, Y. Li, J. Libby, C. Liu, Z. Q. Liu, D. Liventsev, R. Louvot, D. Matvienko, S. McOnie, H. Miyata, Y. Miyazaki, G. B. Mohanty, A. Moll, N. Muramatsu, R. Mussa, M. Nakao, Z. Natkaniec, S. Neubauer, M. Niiyama, S. Nishida, K. Nishimura, O. Nitoh, T. Nozaki, S. L. Olsen, Y. Onuki, P. Pakhlov, G. Pakhlova, H. Park, H. K. Park, T. K. Pedlar, M. Petrič, L. E. Piilonen, A. Poluektov, M. Prim, M. Ritter, M. Röhrken, S. Ryu, H. Sahoo, Y. Sakai, D. Santel, T. Sanuki, O. Schneider, C. Schwanda, K. Senyo, M. E. Sevior, M. Shapkin, V. Shebalin, T. A. Shibata, J. G. Shiu, B. Shwartz, F. Simon, P. Smerkol, Y. S. Sohn, A. Sokolov, E. Solovieva, M. Starič, M. Sumihama, T. Sumiyoshi, S. Tanaka, G. Tatishvili, Y. Teramoto, I. Tikhomirov, M. Uchida, S. Uehara, T. Uglov, Y. Ushiroda, S. E. Vahsen, G. Varner, A. Vinokurova, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, K. M. Williams, E. Won, B. D. Yabsley, Y. Yamashita, M. Yamauchi, C. Z. Yuan, Y. Yusa, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc, O. Zyukova

Research output: Contribution to journalArticle

399 Citations (Scopus)

Abstract

We report the observation of two narrow structures in the mass spectra of the π ±Υ(nS) (n=1, 2, 3) and π ±h b(mP) (m=1, 2) pairs that are produced in association with a single charged pion in Υ(5S) decays. The measured masses and widths of the two structures averaged over the five final states are M 1=(10607.2±2.0)MeV/c2, Γ 1=(18.4±2.4) MeV, and M 2=(10652.2±1.5)MeV/c2, Γ 2=(11. 5±2.2)MeV. The results are obtained with a 121.4fb -1 data sample collected with the Belle detector in the vicinity of the Υ(5S) resonance at the KEKB asymmetric-energy e +e - collider.

Original languageEnglish
Article number122001
JournalPhysical Review Letters
Volume108
Issue number12
DOIs
Publication statusPublished - 2012 Mar 20

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Bondar, A., Garmash, A., Mizuk, R., Santel, D., Kinoshita, K., Adachi, I., Aihara, H., Arinstein, K., Asner, D. M., Aushev, T., Aziz, T., Bakich, A. M., Barberio, E., Belous, K., Bhardwaj, V., Bischofberger, M., Bozek, A., Bračko, M., Browder, T. E., ... Zyukova, O. (2012). Observation of two charged bottomoniumlike resonances in Y(5S) decays. Physical Review Letters, 108(12), [122001]. https://doi.org/10.1103/PhysRevLett.108.122001