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22-28 July 2018
Kellogg Hotel and Conference Center
EST timezone

Charmonium-nucleon interactions from 2+1 flavor lattice QCD

Jul 27, 2018, 6:10 PM
20m
105 (Kellogg Hotel and Conference Center)

105

Kellogg Hotel and Conference Center

219 S Harrison Rd, East Lansing, MI 48824
Hadron Spectroscopy and Interactions Hadron Spectroscopy and Interactions

Speaker

Mr Takuya Sugiura (RCNP, Osaka University)

Description

In this talk we report on the lattice QCD calculations of the interactions between a charmonium (either $\eta_c$ and $J/\psi$) and a nucleon. We use the method introduced by the HAL QCD collaboration to compute potentials, which guarantees the interaction to be faithful to the QCD S-matrix below the open-charm threshold. Our lattice simulation is performed with $2+1$ flavor full QCD gauge configurations on a $32^3\times 64$ lattice generated by the CP-PACS and JLQCD collaborations. The relativistic heavy quark action is employed for charm quarks. We find that both $\eta_c N$ and $J/\psi N$ are weakly attractive, but not strong enough to have a bound state.

Primary author

Mr Takuya Sugiura (RCNP, Osaka University)

Co-authors

Prof. Noriyoshi Ishii (RCNP) Dr Yoichi Ikeda (RCNP)

Presentation Materials