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Inclusive study of bottomonium production in association with an $$eta $$ meson in $$e^+e^-$$ annihilations near $$Upsilon (5S)$$

Tamponi, U.*; Tanida, Kiyoshi   ; Belle Collaboration*; 174 of others*

We study bottomonium production in association with an $$eta$$ meson in $$e^+e^-$$ annihilations near the $$Upsilon(5S)$$, at a center of mass energy of $$sqrt{s}=10.866,$$GeV. The results are based on the $$121.4,$$fb$$^{-1}$$ data sample collected by the Belle experiment at the asymmetric energy KEKB collider. Only the $$eta$$ meson is reconstructed and the missing-mass spectrum of $$eta$$ candidates is investigated. We observe the $$e^+e^-toetaUpsilon_J(1D)$$ process and find evidence for the $$e^+e^-toetaUpsilon(2S)$$ process, while no significant signals of $$Upsilon(1S)$$, $$h_b(1P)$$, nor $$h_b(2P)$$ are found. Cross sections for the studied processes are reported.

Language

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English

Journal

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European Physical Journal C

Volume

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78

Number

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8

Pages

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p.633_1 - 633_10

Publication Year/Month

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2018/08

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Patent information

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Paper URL

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https://doi.org/10.1140/epjc/s10052-018-6086-4

DOI for research data

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Keywords

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ハドロン分光

Research Facility

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Press Release

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Article of JAEA R&D Review

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Cooperating Institute

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高エネルギー加速器研究機構

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- Accesses

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Percentile:59.03

Category:Physics, Particles & Fields

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