TY - JOUR
T1 - Antiheavy-Antiheavy-Light-Light Four-Quark Bound States
AU - Pflaumer, Martin
AU - Alexandrou, Constantia
AU - Finkenrath, Jacob
AU - Leontiou, Theodoros
AU - Meinel, Stefan
AU - Wagner, Marc
N1 - Funding Information: is supported by the U.S. Department of Energy, Office of Science, Office of High Energy Physics under Award Number DE-SC0009913. We thank the RBC and UKQCD collaborations for providing their gauge field ensembles [20, 21]. We thank the MILC collaboration for sharing their gauge link ensembles [26]. Part of the results were obtained using Cyclone High Performance Computer at The Cyprus Institute, under the preparatory access with id p054. Calculations were conducted on the GOETHE-HLR and on the FUCHS-CSC high-performance computers of the Frankfurt University. We would like to thank HPC-Hessen, funded by the State Ministry of Higher Education, Research and the Arts, for programming advice. This research also 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, as well as resources at the Texas Advanced Computing Center that were part of the Extreme Science and Engineering Discovery Environment (XSEDE), which was supported by National Science Foundation grant number ACI-1548562. Funding Information: We acknowledge useful discussions with Luka Leskovec. M.W. and M.P. acknowledge support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) − project number 457742095. M.W. acknowledges support by the Heisenberg Programme of the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) − project number 399217702. J.F. is financially supported by the H2020 project PRACE 6-IP (GA No. 82376) and by the EuroCC project (GA No. 951732) funded by the Deputy Ministry of Research, Innovation and Digital Policy and the Cyprus Research and Innovation Foundation and the European High-Performance Computing Joint Undertaking (JU) under grant agreement No. 951732. S.M. Funding Information: We acknowledge useful discussions with Luka Leskovec. M.W. and M.P. acknowledge support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - project number 457742095. M.W. acknowledges support by the Heisenberg Programme of the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - project number 399217702. J.F. is financially supported by the H2020 project PRACE 6-IP (GA No. 82376) and by the EuroCC project (GA No. 951732) funded by the Deputy Ministry of Research, Innovation and Digital Policy and the Cyprus Research and Innovation Foundation and the European High-Performance Computing Joint Undertaking (JU) under grant agreement No. 951732. S.M. is supported by the U.S. Department of Energy, Office of Science, Office of High Energy Physics under Award Number DE-SC0009913. We thank the RBC and UKQCD collaborations for providing their gauge field ensembles [20, 21]. We thank the MILC collaboration for sharing their gauge link ensembles [26]. Part of the results were obtained using Cyclone High Performance Computer at The Cyprus Institute, under the preparatory access with id p054. Calculations were conducted on the GOETHE-HLR and on the FUCHS-CSC high-performance computers of the Frankfurt University. We would like to thank HPC-Hessen, funded by the State Ministry of Higher Education, Research and the Arts, for programming advice. This research also 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, as well as resources at the Texas Advanced Computing Center that were part of the Extreme Science and Engineering Discovery Environment (XSEDE), which was 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 - 2023/4/6
Y1 - 2023/4/6
N2 - We present our recent results on antiheavy-antiheavy-light-light tetraquark systems using lattice QCD. Our study of the b̄b̄us four-quark system with quantum numbers JP = 1+ and the b̄c̄ud four-quark systems with I(JP) = 0(0+) and I(JP) = 0(1+) utilizes scattering operators at the sink to improve the extraction of the low-lying energy levels. We found a bound state for b̄b̄us with Ebind, b̄b̄us = (-86 ± 22 ± 10) MeV, but no indication for a bound state in both b̄c̄ud channels. Moreover, we show preliminary results for b̄b̄ud with I(JP) = 0(1+), where we used scattering operators both at the sink and the source. We found a bound state and determined its infinite-volume binding energy with a scattering analysis, resulting in Ebind, b̄b̄ud = (-103 ± 8) MeV.
AB - We present our recent results on antiheavy-antiheavy-light-light tetraquark systems using lattice QCD. Our study of the b̄b̄us four-quark system with quantum numbers JP = 1+ and the b̄c̄ud four-quark systems with I(JP) = 0(0+) and I(JP) = 0(1+) utilizes scattering operators at the sink to improve the extraction of the low-lying energy levels. We found a bound state for b̄b̄us with Ebind, b̄b̄us = (-86 ± 22 ± 10) MeV, but no indication for a bound state in both b̄c̄ud channels. Moreover, we show preliminary results for b̄b̄ud with I(JP) = 0(1+), where we used scattering operators both at the sink and the source. We found a bound state and determined its infinite-volume binding energy with a scattering analysis, resulting in Ebind, b̄b̄ud = (-103 ± 8) MeV.
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M3 - Conference article
SN - 1824-8039
VL - 430
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 075
T2 - 39th International Symposium on Lattice Field Theory, LATTICE 2022
Y2 - 8 August 2022 through 13 August 2022
ER -