Quark-diquark potential and diquark mass from Lattice QCD

@inproceedings{Watanabe2021QuarkdiquarkPA,
  title={Quark-diquark potential and diquark mass from Lattice QCD},
  author={Kai Watanabe},
  year={2021}
}
We propose a new application of lattice QCD to calculate the quark-diquark potential, diquark mass and quark mass required for the diquark model. As a concrete example, we consider the Λc baryon and treat it as a charm-diquark(c-[ud]) two-body bound state. We extend the HAL QCD method to calculate the charm-diquark potential which reproduces the equal-time Nambu-BetheSalpeter wave function of the S-wave state (Λc( 1 2 + )). The diquark mass is determined so as to reproduce the difference… 

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