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Volume 334 - The 36th Annual International Symposium on Lattice Field Theory (LATTICE2018) - Hadron Spectroscopy and Interactions
Charmonium-nucleon interactions from 2+1 flavor lattice QCD
T. Sugiura,* Y. Ikeda, N. Ishii
*corresponding author
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Published on: 2019 May 29
The charmonium-nucleon interaction is studied by the time-dependent HAL QCD method. We use a larger lattice volume and the relativistic heavy quark action for charm quark to obtain less systematic errors than those in our previous study. As a result, the sizable J/\(\psi\)N hyperfine split- ting is observed, indicating that the spin-spin interaction is important to understand this system quantitatively. No J/\(\psi\)N or \(\eta_c\)N bound state is observed below the thresholds as in the previous results.
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