Lattice Evidence for Bound Heavy Tetraquarks

We investigate the possibility of qq'Q¯Q¯′$ \bar {Q}\bar {Q}' $ tetraquark bound states using nf = 2 + 1 lattice QCD with pion masses ≃ 164, 299 and 415 MeV. Two types of lattice interpolating operator are chosen, reflecting first diquarkantidiquark and second meson-meson structure. Perfor...

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Bibliographic Details
Main Authors: Francis Anthony, Hudspith Renwick J., Lewis Randy, Maltman Kim
Format: Article
Language:English
Published: EDP Sciences 2019-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2019/07/epjconf_charm2018_06013.pdf