Observation of $e^+e^- \to π^+ π^- π^0 χ_{bJ}$ and search for $X_b \to ωΥ(1S)$ at $\sqrt{s}\sim 10.867$ GeV
Creators: name: Belle Collaboration
name: He, X. H.
name: Shen, C. P.
name: Yuan, C. Z.
name: Ban, Y.
name: Abdesselam, A.
name: Adachi, I.
name: Aihara, H.
name: Asner, D. M.
name: Aulchenko, V.
name: Aushev, T.
name: Ayad, R.
name: Bahinipati, S.
name: Bakich, A. M.
name: Bansal, V.
name: Bhuyan, B.
name: Bondar, A.
name: Bonvicini, G.
name: Bozek, A.
name: Browder, T. E.
name: Červenkov, D.
name: Chang, P.
name: Chekelian, V.
name: Chen, A.
name: Cheon, B. G.
name: Chilikin, K.
name: Chistov, R.
name: Cho, K.
name: Chobanova, V.
name: Choi, S. -K.
name: Choi, Y.
name: Cinabro, D.
name: Dalseno, J.
name: Danilov, M.
name: Doležal, Z.
name: Drásal, Z.
name: Drutskoy, A.
name: Eidelman, S.
name: Farhat, H.
name: Fast, J. E.
name: Ferber, T.
name: Gaur, V.
name: Gabyshev, N.
name: Ganguly, S.
name: Garmash, A.
name: Gillard, R.
name: Glattauer, R.
name: Goh, Y. M.
name: Grzymkowska, O.
name: Haba, J.
name: Hayasaka, K.
name: Hayashii, H.
name: Hou, W. -S.
name: Iijima, T.
name: Ishikawa, A.
name: Itoh, R.
name: Iwasaki, Y.
name: Jaegle, I.
name: Joo, K. K.
name: Julius, T.
name: Kato, E.
name: Kawasaki, T.
name: Kim, D. Y.
name: Kim, M. J.
name: Kim, Y. J.
name: Kinoshita, K.
name: Ko, B. R.
name: Kodyš, P.
name: Korpar, S.
name: Križan, P.
name: Krokovny, P.
name: Kumita, T.
name: Kwon, Y. -J.
name: Li, Y.
name: Libby, J.
name: Liventsev, D.
name: Matvienko, D.
name: Miyata, H.
name: Mizuk, R.
name: Mohanty, G. B.
name: Moll, A.
name: Mussa, R.
name: Nakano, E.
name: Nakao, M.
name: Nanut, T.
name: Natkaniec, Z.
name: Nedelkovska, E.
name: Nisar, N. K.
name: Nishida, S.
name: Ogawa, S.
name: Okuno, S.
name: Pakhlov, P.
name: Pakhlova, G.
name: Park, H.
name: Pedlar, T. K.
name: Pestotnik, R.
name: Petrič, M.
name: Piilonen, L. E.
name: Ritter, M.
name: Rostomyan, A.
name: Sakai, Y.
name: Sandilya, S.
name: Santelj, L.
name: Sanuki, T.
name: Sato, Y.
name: Savinov, V.
name: Schneider, O.
name: Schnell, G.
name: Schwanda, C.
name: Semmler, D.
name: Senyo, K.
name: Sevior, M. E.
name: Shebalin, V.
name: Shibata, T. -A.
name: Shiu, J. -G.
name: Shwartz, B.
name: Sibidanov, A.
name: Simon, F.
name: Sohn, Y. -S.
name: Sokolov, A.
name: Solovieva, E.
name: Starič, M.
name: Steder, M.
name: Sumisawa, K.
name: Sumiyoshi, T.
name: Tamponi, U.
name: Tanida, K.
name: Tatishvili, G.
name: Teramoto, Y.
name: Thorne, F.
name: Trabelsi, K.
name: Uchida, M.
name: Uehara, S.
name: Uglov, T.
name: Unno, Y.
name: Uno, S.
name: Urquijo, P.
name: Vahsen, S. E.
name: Van Hulse, C.
name: Vanhoefer, P.
name: Varner, G.
name: Vinokurova, A.
name: Vorobyev, V.
name: Wagner, M. N.
name: Wang, C. H.
name: Wang, M. -Z.
name: Wang, P.
name: Wang, X. L.
name: Watanabe, M.
name: Watanabe, Y.
name: Wehle, S.
name: Williams, K. M.
name: Won, E.
name: Yamaoka, J.
name: Yashchenko, S.
name: Yook, Y.
name: Yusa, Y.
name: Zhang, Z. P.
name: Zhilich, V.
name: Zhulanov, V.
name: Zupanc, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: The $e^+e^- \to π^+ π^- π^0 χ_{bJ}$ ($J=0,~1,~2$) processes are studied using a 118~fb$^{-1}$ data sample collected at a center-of-mass energy of 10.867 GeV, in the $Υ(10860)$ energy range, with the Belle detector. The $π^+ π^- π^0 χ_{b1}$, $π^+π^-π^0χ_{b2}$, $ωχ_{b1}$ signals and the evidence of $ωχ_{b2}$ are observed for the first time and the cross sections are measured. No significant $π^+π^-π^0χ_{b0}$ or $ωχ_{b0}$ signal is observed and 90\% confidence level upper limits on the cross sections for these two processes are obtained. In the $π^+π^-π^0$ invariant mass spectrum, significant non-$ω$ signals are also observed. We search for the $X(3872)$-like state with a hidden $b\bar{b}$ component (named $X_b$) decaying into $ωΥ(1S)$; no significant signal is observed with a mass between $10.55$ and $10.65$ GeV/$c^2$.
description: 7 pages, 3 figures, accepted for publication as a Letter in Physical Review Letters