Bottomonium spectroscopy at CLEO

Kamal K Seth

Bottomonium spectroscopy at CLEO

Kamal K Seth^*

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

Results of the latest CLEO contribution to bottomonium spectroscopy is presented, the confirmation of the η_b(¹S₀) ground state of bottomonium in the radiative decay γ(3S) → γη_b. The bottomonium hyperfine splitting is determined to be Δ_hf(1S) = 68.5 ± 6.6 ± 2.0 MeV and the branching fraction B(γ(3S) → γη_b) = (7.1 ± 1.8 ± 1.1) × 10^-4, assuming Γ(η_b) = 10 MeV. These results are in good agreement with those reported by BaBar.

Original language	English (US)
Journal	Proceedings of Science
State	Published - Dec 1 2009

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abstract = "Results of the latest CLEO contribution to bottomonium spectroscopy is presented, the confirmation of the ηb(1S0) ground state of bottomonium in the radiative decay γ(3S) → γηb. The bottomonium hyperfine splitting is determined to be Δhf(1S) = 68.5 ± 6.6 ± 2.0 MeV and the branching fraction B(γ(3S) → γηb) = (7.1 ± 1.8 ± 1.1) × 10-4, assuming Γ(ηb) = 10 MeV. These results are in good agreement with those reported by BaBar.",

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N2 - Results of the latest CLEO contribution to bottomonium spectroscopy is presented, the confirmation of the ηb(1S0) ground state of bottomonium in the radiative decay γ(3S) → γηb. The bottomonium hyperfine splitting is determined to be Δhf(1S) = 68.5 ± 6.6 ± 2.0 MeV and the branching fraction B(γ(3S) → γηb) = (7.1 ± 1.8 ± 1.1) × 10-4, assuming Γ(ηb) = 10 MeV. These results are in good agreement with those reported by BaBar.

AB - Results of the latest CLEO contribution to bottomonium spectroscopy is presented, the confirmation of the ηb(1S0) ground state of bottomonium in the radiative decay γ(3S) → γηb. The bottomonium hyperfine splitting is determined to be Δhf(1S) = 68.5 ± 6.6 ± 2.0 MeV and the branching fraction B(γ(3S) → γηb) = (7.1 ± 1.8 ± 1.1) × 10-4, assuming Γ(ηb) = 10 MeV. These results are in good agreement with those reported by BaBar.

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