TY  - INPR
A1  - Pflaumer, Martin
A1  - Leskovec, Luka
A1  - Meinel, Stefan
A1  - Wagner, Marc
T1  - Existence and non-existence of doubly heavy tetraquark bound states
T2  - arXiv
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  - 2021
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/84614
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-846148
UR  - https://arxiv.org/abs/2108.10704v1
IS  - 2108.10704v1
PB  - arXiv
ER  -