Investigation of Doubly Heavy Tetraquark Systems using Lattice QCD

Martin Pflaumer; Luka Leskovec; Stefan Meinel; Marc Wagner

Investigation of Doubly Heavy Tetraquark Systems using Lattice QCD

High Energy Physics - Lattice 2020-09-23 v1

Authors: Martin Pflaumer , Luka Leskovec , Stefan Meinel , Marc Wagner

Abstract

We search for possibly existent bound states in the heavy-light tetraquark channels with quark content $\bar{b}\bar{b}ud$ , $\bar{b}\bar{b}us$ and $\bar{b}\bar{c}ud$ using lattice QCD. We carry out calculations on several gauge link ensembles with $N_f=2+1$ flavours of domain-wall fermions and consider a basis of local and non-local interpolators. Besides extracting the energy spectrum from the correlation matrices, we also perform a L\"uscher analysis to extrapolate our results to infinite volume.

Keywords

lattice qcd tetraquark bound states domain-wall fermions luscher analysis heavy-light systems

Cite

@article{arxiv.2009.10538,
  title  = {Investigation of Doubly Heavy Tetraquark Systems using Lattice QCD},
  author = {Martin Pflaumer and Luka Leskovec and Stefan Meinel and Marc Wagner},
  journal= {arXiv preprint arXiv:2009.10538},
  year   = {2020}
}

Comments

10 pages, 6 figures, 4 tables, Talk given at the Asia-Pacific Symposium for Lattice Field Theory (APLAT 2020), 4-7 August 2020

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