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

Marc Wagner, Constantia Alexandrou, Jacob Finkenrath, Theodoros Leontiou, Stefan Meinel, Martin Pflaumer

Research output: Contribution to journalConference articlepeer-review

Abstract

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.

Original languageEnglish (US)
Article number270
JournalProceedings of Science
Volume430
StatePublished - Apr 6 2023
Event39th International Symposium on Lattice Field Theory, LATTICE 2022 - Bonn, Germany
Duration: Aug 8 2022Aug 13 2022

ASJC Scopus subject areas

  • General

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