# 36th Annual International Symposium on Lattice Field Theory

Jul 22 – 28, 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

### 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)

 Slides