Study of η and dipion transitions in Υ(4S) decays to lower bottomonia

Guido, E.; Mussa, R.; Tamponi, U.; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Ayad, R.; Badhrees, I.; Bakich, A. M.; Bansal, V.; Behera, P.; Bhardwaj, V.; Bhuyan, B.; Biswal, J.; Bobrov, A.; Bondar, A.; Bozek, A.; Bračko, M.; Browder, T. E.; Červenkov, D.; Chekelian, V.; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, K.; Choi, S. -K.; Choi, Y.; Cinabro, D.; Dash, N.; Di Carlo, S.; Doležal, Z.; Drásal, Z.; Eidelman, S.; Epifanov, D.; Farhat, H.; Fast, J. E.; Ferber, T.; Fulsom, B. G.; Gaur, V.; Gabyshev, N.; Garmash, A.; Gelb, M.; Gillard, R.; Goldenzweig, P.; Haba, J.; Hara, T.; Hayasaka, K.; Hayashii, H.; Hedges, M. T.; Hou, W. -S.; Iijima, T.; Inami, K.; Inguglia, G.; Ishikawa, A.; Itoh, R.; Iwasaki, Y.; Jacobs, W. W.; Jaegle, I.; Jeon, H. B.; Jia, S.; Jin, Y.; Joffe, D.; Joo, K. K.; Julius, T.; Kang, K. H.; Karyan, G.; Kawasaki, T.; Kim, D. Y.; Kim, J. B.; Kim, K. T.; Kim, M. J.; Kim, S. H.; Kim, Y. J.; Kinoshita, K.; Kodyš, P.; Korpar, S.; Kotchetkov, D.; Križan, P.; Krokovny, P.; Kulasiri, R.; Kumita, T.; Kuzmin, A.; Kwon, Y. -J.; Lange, J. S.; Lewis, P.; Li, C. H.; Li, L.; Li Gioi, L.; Libby, J.; Liventsev, D.; Lubej, M.; Luo, T.; Masuda, M.; Matsuda, T.; Matvienko, D.; Merola, M.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Moon, H. K.; Mori, T.; Nakano, E.; Nakao, M.; Nanut, T.; Nath, K. J.; Natkaniec, Z.; Nayak, M.; Niiyama, M.; Nisar, N. K.; Nishida, S.; Ogawa, S.; Ono, H.; Pakhlov, P.; Pakhlova, G.; Pal, B.; Pardi, S.; Park, C. -S.; Park, H.; Paul, S.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Pulvermacher, C.; Ritter, M.; Rostomyan, A.; Sakai, Y.; Sandilya, S.; Santelj, L.; Sanuki, T.; Savinov, V.; Schneider, O.; Schnell, G.; Schwanda, C.; Seino, Y.; Senyo, K.; Sevior, M. E.; Shebalin, V.; Shen, C. P.; Shibata, T. -A.; Shiu, J. -G.; Shwartz, B.; Simon, F.; Sokolov, A.; Solovieva, E.; Starič, M.; Strube, J. F.; Sumisawa, K.; Sumiyoshi, T.; Takizawa, M.; Tanida, K.; Tenchini, F.; Trabelsi, K.; Uchida, M.; Uglov, T.; Unno, Y.; Uno, S.; Usov, Y.; Van Hulse, C.; Varner, G.; Vinokurova, A.; Vorobyev, V.; Vossen, A.; Wang, C. H.; Wang, P.; Wang, X. L.; Watanabe, M.; Watanabe, Y.; Watanuki, S.; Widmann, E.; Williams, K. M.; Won, E.; Yamashita, Y.; Ye, H.; Yuan, C. Z.; Zhang, Z. P.; Zhilich, V.; Zhukova, V.; Zhulanov, V.; Zupanc, A.

doi:10.1103/PhysRevD.96.052005

Title: Study of $η$ and dipion transitions in $Υ (4 S)$ decays to lower bottomonia

Journal Article · Fri Sep 01 00:00:00 EDT 2017 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.96.052005· OSTI ID:1416681

Guido, E.; Mussa, R.; Tamponi, U.; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Ayad, R.; Badhrees, I.; Bakich, A. M.; Bansal, V.; Behera, P.; Bhardwaj, V.; Bhuyan, B.; Biswal, J.; Bobrov, A.; Bondar, A.; Bozek, A. more »

We study hadronic transitions between bottomonium states using 496 fb^-1 data collected at the $$Y$$(4S) resonance with the Belle detector at the KEKB asymmetric energy e⁺e^- collider. We measure B($$Y$$(4S)→π⁺π^-$-Y$(1S))=(8.2 ± 0.5(stat) ± 0.4(syst))×10^-5, B($$Y$$(4S) → π⁺π^-$$Y$$ð2SÞÞ¼ð7.91.0ðstatÞ 0.4ðsystÞÞ×10-5, and Bð$$Y$$ð4SÞ → η$$Y$$ð1SÞÞ ¼ ð1.70 0.23ðstatÞ 0.08ðsystÞÞ × 10-4. We measure the ratio of branching fractions R ¼ Bð$$Y$$ð4SÞ → η$$Y$$ð1SÞÞ=Bð$$Y$$ð4SÞ → πþπ-$$Y$$ð1SÞÞ ¼ 2.07 0.30ðstatÞ 0.11ðsystÞ. We search for the decay $$Y$$ð13D1;2 Þ → η$$Y$$ð1SÞ, but do not find significant evidence for such a transition.We also measure the initial-state radiation production cross sections of the $$Y$$ð2S; 3SÞ resonances and we find values compatible with the expected ones. Finally, the analysis of the $$Y$$(4S) → π⁺π^-$$Y$$(1S) events shows indications for a resonant contribution due to the f₀ (980) meson.

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Research Organization:: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Sponsoring Organization:: USDOE

Contributing Organization:: The Belle Collaboration

DOE Contract Number:: AC05-76RL01830

OSTI ID:: 1416681

Report Number(s):: PNNL-SA-131305; PRVDAQ; KA2201020

Journal Information:: Physical Review D, Vol. 96, Issue 5; ISSN 2470-0010

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

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Inclusive study of bottomonium production in association with an $$\eta $$ η meson in $$e^+e^-$$ e + e - annihilations near $$\varUpsilon (5S)$$ Υ ( 5 S ): Belle Collaboration Tamponi, U.; Guido, E.; Mussa, R. The European Physical Journal C, Vol. 78, Issue 8 https://doi.org/10.1140/epjc/s10052-018-6086-4	journal	August 2018
First Measurements of Absolute Branching Fractions of the $ Ξ _{c}^ 0$ Baryon at Belle Li, Y. B.; Shen, C. P.; Yuan, C. Z. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2019-02584	text	January 2019
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