TY - JOUR
T1 - Lattice QCD study of antiheavy-antiheavy-light-light tetraquarks based on correlation functions with scattering interpolating operators both at the source and at the sink
AU - Wagner, Marc
AU - Alexandrou, Constantia
AU - Finkenrath, Jacob
AU - Leontiou, Theodoros
AU - Meinel, Stefan
AU - Pflaumer, Martin
N1 - 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 first results of a recently started lattice QCD investigation of antiheavy-antiheavylight-light tetraquark systems including scattering interpolating operators in correlation functions both at the source and at the sink. In particular, we discuss the importance of such scattering interpolating operators for a precise computation of the low-lying energy levels. We focus on the (Equation presented)(Equation presented)ud four-quark system with quantum numbers I(JP) = 0(1+), which has a ground state below the lowest meson-meson threshold. We carry out a scattering analysis using Lüscher's method to extrapolate the binding energy of the corresponding QCD-stable tetraquark to infinite spatial volume. Our calculation uses clover u, d valence quarks and NRQCD b valence quarks on gauge-link ensembles with HISQ sea quarks that were generated by the MILC collaboration.
AB - We present first results of a recently started lattice QCD investigation of antiheavy-antiheavylight-light tetraquark systems including scattering interpolating operators in correlation functions both at the source and at the sink. In particular, we discuss the importance of such scattering interpolating operators for a precise computation of the low-lying energy levels. We focus on the (Equation presented)(Equation presented)ud four-quark system with quantum numbers I(JP) = 0(1+), which has a ground state below the lowest meson-meson threshold. We carry out a scattering analysis using Lüscher's method to extrapolate the binding energy of the corresponding QCD-stable tetraquark to infinite spatial volume. Our calculation uses clover u, d valence quarks and NRQCD b valence quarks on gauge-link ensembles with HISQ sea quarks that were generated by the MILC collaboration.
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M3 - Conference article
AN - SCOPUS:85153286565
SN - 1824-8039
VL - 430
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 270
T2 - 39th International Symposium on Lattice Field Theory, LATTICE 2022
Y2 - 8 August 2022 through 13 August 2022
ER -