Observation of e + e − → π + π − π 0 χ b 1 , 2 ( 1 P ) and search for e + e − → ϕ χ b 1 , 2 ( 1 P ) at s = 10.96 — 11.05     GeV

Yin, J. H.; Yuan, C. Z.; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Ayad, R.; Babu, V.; Badhrees, I.; Bahinipati, S.; Bakich, A. M.; Bansal, V.; Behera, P.; Beleño, C.; Bhuyan, B.; Bilka, T.; Biswal, J.; Bobrov, A.; Bozek, A.; Bračko, M.; Browder, T. E.; Cao, L.; Červenkov, D.; Chang, P.; Chekelian, V.; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, K.; Choi, S. -K.; Choi, Y.; Choudhury, S.; Cinabro, D.; Cunliffe, S.; Dash, N.; Di Carlo, S.; Dingfelder, J.; Doležal, Z.; Dong, T. V.; Drásal, Z.; Eidelman, S.; Epifanov, D.; Fast, J. E.; Ferber, T.; Fulsom, B. G.; Garg, R.; Gaur, V.; Gabyshev, N.; Garmash, A.; Gelb, M.; Giri, A.; Goldenzweig, P.; Golob, B.; Haba, J.; Hayasaka, K.; Hayashii, H.; Hirose, S.; Hou, W. -S.; Iijima, T.; Inami, K.; Inguglia, G.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Jacobs, W. W.; Jaegle, I.; Jeon, H. B.; Jia, S.; Jin, Y.; Joffe, D.; Joo, K. K.; Julius, T.; Kang, K. H.; Kawasaki, T.; Kiesling, C.; Kim, D. Y.; Kim, J. B.; Kim, K. T.; Kim, S. H.; Kinoshita, K.; Kodyš, P.; Korpar, S.; Kotchetkov, D.; Križan, P.; Kroeger, R.; Krokovny, P.; Kuhr, T.; Kulasiri, R.; Kwon, Y. -J.; Lange, J. S.; Lee, I. S.; Lee, S. C.; Li, L. K.; Li, Y. B.; Li Gioi, L.; Libby, J.; Liventsev, D.; Lubej, M.; Luo, T.; Masuda, M.; Matsuda, T.; Matvienko, D.; Merola, M.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Moon, H. K.; Mori, T.; Mussa, R.; Nakano, E.; Nakao, M.; Nanut, T.; Nath, K. J.; Natkaniec, Z.; Nayak, M.; Niiyama, M.; Nisar, N. K.; Nishida, S.; Nishimura, K.; Ogawa, K.; Ogawa, S.; Ono, H.; Pakhlov, P.; Pakhlova, G.; Pal, B.; Pardi, S.; Park, H.; Paul, S.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Popov, V.; Prencipe, E.; Rostomyan, A.; Russo, G.; Sahoo, D.; Sakai, Y.; Salehi, M.; Sandilya, S.; Santelj, L.; Sanuki, T.; Savinov, V.; Schneider, O.; Schnell, G.; Schwanda, C.; Seino, Y.; Senyo, K.; Seon, O.; Sevior, M. E.; Shen, C. P.; Shibata, T. -A.; Shiu, J. -G.; Shwartz, B.; Simon, F.; Sokolov, A.; Solovieva, E.; Starič, M.; Sumiyoshi, T.; Sutcliffe, W.; Takizawa, M.; Tamponi, U.; Tanida, K.; Tenchini, F.; Uchida, M.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Van Hulse, C.; Van Tonder, R.; Varner, G.; Vinokurova, A.; Vorobyev, V.; Wang, B.; Wang, C. H.; Wang, M. -Z.; Wang, P.; Wang, X. L.; Watanuki, S.; Widmann, E.; Won, E.; Yamamoto, H.; Ye, H.; Yusa, Y.; Zhang, Z. P.; Zhilich, V.; Zhukova, V.; Zhulanov, V.

doi:10.1103/PhysRevD.98.091102

Title: Observation of $e^{+} e^{-} \to π^{+} π^{-} π^{0} χ_{b 1, 2} (1 P)$ and search for $e^{+} e^{-} \to ϕ χ_{b 1, 2} (1 P)$ at $\sqrt{s} = 10.96 — 11.05 GeV$

Journal Article · Thu Nov 15 00:00:00 EST 2018 · Physical Review. D.

DOI:https://doi.org/10.1103/PhysRevD.98.091102· OSTI ID:1482278

Yin, J. H.; Yuan, C. Z.; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Ayad, R.; Babu, V.; Badhrees, I.; Bahinipati, S.; Bakich, A. M.; Bansal, V.; Behera, P.; Beleño, C.; Bhuyan, B.; Bilka, T.; Biswal, J.; Bobrov, A. more »

We report searches for the processes e⁺ e^- → π⁺ π^- π⁰χ_bJ and e⁺ e^- → Φχ_bJ (J = 1,2) based on data samples collected by the Belle experiment at the KEKB collider. We report the first observation of the process e⁺ e^-- → ( π⁺ π^- π⁰) _{non - ω} χ _b1 and first evidence for e⁺ e^- → ωχ_bJ in the vicinity of the Υ(11020 ) resonance, with center-of-mass energies from 10.96 to 11.05 GeV. The significances for ( π + π - π 0 ) non - ω χ b 1 and ω χ b J are greater than 5.3 σ and 4.0 σ , respectively. We also investigate the energy dependence of the e⁺ e^-→ π⁺ π^- π⁰ χ_bJ cross section, but we cannot determine whether the contributions are from the Υ (10860) and Υ (11020) resonances or nonresonant continuum processes. The signals for e⁺ e^- → Φχ_bJ are not significant, and the upper limits of the Born cross sections at the 90% confidence level are 0.7 and 1.0 pb for e⁺ e^- → Φχ_b1 and Φχ_b2, respectively, for center-of-mass energies from 10.96 to 11.05 GeV.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States); Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States); Univ. of Hawaii, Honolulu, HI (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP); KEK - High Energy Accelerator Research Organization; Ministry of Education, Culture, Sports, Science and Technology; National Science Foundation (NSF)

Contributing Organization:: Belle Collaboration

Grant/Contract Number:: SC0012704; SC0009973; SC0010504

OSTI ID:: 1482278

Alternate ID(s):: OSTI ID: 1484170; OSTI ID: 1593906

Report Number(s):: BNL-209531-2018-JAAM; PRVDAQ; 091102

Journal Information:: Physical Review. D., Journal Name: Physical Review. D. Vol. 98 Journal Issue: 9; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 4 works

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Title: Observation of $e^{+} e^{-} \to π^{+} π^{-} π^{0} χ_{b 1, 2} (1 P)$ and search for $e^{+} e^{-} \to ϕ χ_{b 1, 2} (1 P)$ at $\sqrt{s} = 10.96 — 11.05 GeV$