Lattice QCD study of the nucleon-charmonium interaction

Takuya Sugiura; Yoichi Ikeda; Noriyoshi Ishii

Lattice QCD study of the nucleon-charmonium interaction

Takuya Sugiura, Yoichi Ikeda, Noriyoshi Ishii

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

Abstract

The J/ψ-nucleon interaction is studied by lattice QCD calculations. At the leading order of the derivative expansion, the interaction consists of four terms: the central, the spin-spin, and two types of tensor forces. We determine these spin-dependent forces quantitatively by using the time-dependent HAL QCD method. We find that the spin-spin force is the main cause of the hyperfine splitting between the J = 1/2 and the J = 3/2 states, while the two tensor forces have much smaller effects on the S-wave scattering processes.

Original language	English
Journal	Unknown Journal
Publication status	Published - May 10 2019
Externally published	Yes

All Science Journal Classification (ASJC) codes

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title = "Lattice QCD study of the nucleon-charmonium interaction",

abstract = "The J/ψ-nucleon interaction is studied by lattice QCD calculations. At the leading order of the derivative expansion, the interaction consists of four terms: the central, the spin-spin, and two types of tensor forces. We determine these spin-dependent forces quantitatively by using the time-dependent HAL QCD method. We find that the spin-spin force is the main cause of the hyperfine splitting between the J = 1/2 and the J = 3/2 states, while the two tensor forces have much smaller effects on the S-wave scattering processes.",

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AU - Ikeda, Yoichi

AU - Ishii, Noriyoshi

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N2 - The J/ψ-nucleon interaction is studied by lattice QCD calculations. At the leading order of the derivative expansion, the interaction consists of four terms: the central, the spin-spin, and two types of tensor forces. We determine these spin-dependent forces quantitatively by using the time-dependent HAL QCD method. We find that the spin-spin force is the main cause of the hyperfine splitting between the J = 1/2 and the J = 3/2 states, while the two tensor forces have much smaller effects on the S-wave scattering processes.

AB - The J/ψ-nucleon interaction is studied by lattice QCD calculations. At the leading order of the derivative expansion, the interaction consists of four terms: the central, the spin-spin, and two types of tensor forces. We determine these spin-dependent forces quantitatively by using the time-dependent HAL QCD method. We find that the spin-spin force is the main cause of the hyperfine splitting between the J = 1/2 and the J = 3/2 states, while the two tensor forces have much smaller effects on the S-wave scattering processes.

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