TY - JOUR
T1 - Existence and Non-Existence of Doubly Heavy Tetraquark Bound States
AU - Pflaumer, Martin
AU - Leskovec, Luka
AU - Meinel, Stefan
AU - Wagner, Marc
N1 - Funding Information: Calculations on the GOETHE-HLR and on the FUCHS-CSC high-performance computers of the Frankfurt University were conducted for this research. We would like to thank HPC-Hessen, funded by the State Ministry of Higher Education, Research and the Arts, for programming advice. This research used resources of the National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility operated under Contract No. Funding Information: We thank Antje Peters for collaboration in the early stages of this project. We thank the RBC and UKQCD collaborations for providing gauge field ensembles. L.L. acknowledges support from the U.S. Department of Energy, Office of Science, through contracts DE-SC0019229 and DE-AC05-06OR23177 (JLAB). S.M. is supported by the U.S. Department of Energy, Office of Science, Office of High Energy Physics under Award Number DE-SC0009913. M.W. acknowledges support by the Heisenberg Programme of the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - project number 399217702. M.P. and M.W. acknowledge support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - project number 457742095. Calculations on the GOETHE-HLR and on the FUCHS-CSC high-performance computers of the Frankfurt University were conducted for this research. We would like to thank HPCHessen, funded by the State Ministry of Higher Education, Research and the Arts, for programming advice. This research used resources of the National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility operated under Contract No. DE-AC02-05CH11231. This work also used resources at the Texas Advanced Computing Center that are part of the Extreme Science and Engineering Discovery Environment (XSEDE), which is supported by National Science Foundation grant number ACI-1548562. Funding Information: L.L. acknowledges support from the U.S. Department of Energy, Office of Science, through contracts DE-SC0019229 and DE-AC05-06OR23177 (JLAB). S.M. is supported by the U.S. Department of Energy, Office of Science, Office of High Energy Physics under Award Number DE-SC0009913. M.W. acknowledges support by the Heisenberg Programme of the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – project number 399217702. M.P. and M.W. acknowledge support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – project number 457742095. Funding Information: DE-AC02-05CH11231. This work also used resources at the Texas Advanced Computing Center that are part of the Extreme Science and Engineering Discovery Environment (XSEDE), which is supported by National Science Foundation grant number ACI-1548562. Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0)
PY - 2022/7/8
Y1 - 2022/7/8
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-ud 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.
AB - 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-ud 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.
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M3 - Conference article
SN - 1824-8039
VL - 396
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 392
T2 - 38th International Symposium on Lattice Field Theory, LATTICE 2021
Y2 - 26 July 2021 through 30 July 2021
ER -