TY  - JOUR
A1  - Pflaumer, Martin
A1  - Leskovec, Luka
A1  - Meinel, Stefan
A1  - Wagner, Marc
T1  - Existence and non-existence of doubly heavy tetraquark bound states
T2  - Proceedings of Science
N2  - In this work we investigate the existence of bound states for doubly heavy tetraquark systems Q¯Q¯′qq′ in a full lattice-QCD computation, where heavy bottom quarks are treated in the framework of non-relativistic QCD. We focus on three systems with quark content b¯b¯ud, b¯b¯us and b¯c¯ud. We show evidence for the existence of b¯b¯ud and b¯b¯us bound states, while no binding appears to be present for b¯c¯ud. For the bound four-quark states we also discuss the importance of various creation operators and give an estimate of the meson-meson and diquark-antidiquark percentages.
Y1  - 2022
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/84615
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-846156
SN  - 1824-8039
VL  - 396
IS  - 392
PB  - SISSA
CY  - Trieste
ER  -