2024
DOI: 10.1103/physrevd.110.054510
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b¯b¯ud and b¯b

Constantia Alexandrou,
Jacob Finkenrath,
Theodoros Leontiou
et al.

Abstract: We study the b¯b¯ud tetraquark with quantum numbers I(JP)=0(1+) as well as the b¯b¯us tetraquark with quantum numbers JP=1+ using lattice QCD. We improve on existing work by including both local and scattering interpolating operators on both sides of the correlation functions and use symmetric correlation matrices. This allows not only a reliable determination of the energies of QCD-stable tetraquark ground states, but also of low-lying excited states, which are meson-meson scattering states. The latter is par… Show more

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