Solving the left-hand cut problem in lattice QCD: from finite volume energy levels

L Meng, V Baru, E Epelbaum, AA Filin, AM Gasparyan - Physical Review D, 2024 - APS
We discuss a novel effective-field-theory-based approach for extracting two-body scattering
information from finite volume energies, serving as an alternative to Lüscher's method. By …

Masses and magnetic moments of doubly heavy tetraquarks via diffusion Monte Carlo method

H Mutuk - The European Physical Journal C, 2024 - Springer
We present mass spectrum and magnetic moments of the n¯ n¯ QQ states, where n= u, d, s
and Q= c, b. We solve four-body Schrödinger equation with a quark potential model by using …

Charmonium and resonances in coupled-channel scattering from lattice QCD

DJ Wilson, CE Thomas, JJ Dudek, RG Edwards… - Physical Review D, 2024 - APS
In order to explore the spectrum of hidden-charm scalar and tensor resonances, we study
meson-meson scattering with JPC= 0++, 2++ in the charmonium energy region using lattice …

Hadrons in (1+ 1) D Hamiltonian hardcore lattice QCD

M Rigobello, G Magnifico, P Silvi… - arXiv preprint arXiv …, 2023 - arxiv.org
We study 2-flavor Hamiltonian lattice QCD in (1+ 1) D with hardcore gluons, at zero and
finite density, by means of matrix product states. We introduce a formulation of the theory …

Hidden-flavor four-quark states in the charm and bottom region

J Hoffer, G Eichmann, CS Fischer - Physical Review D, 2024 - APS
We discuss the spectrum and the internal composition of ground and excited four-quark
states in the charm and bottom energy region. To this end we extend previous calculations …

[HTML][HTML] The QCD Ground State Chiral Tetrahedron Symmetry

R Rom - Journal of High Energy Physics, Gravitation and …, 2023 - scirp.org
We propose that the exotic meson tetraquark ud~ dũ introduced in previous papers, may be
a pseudo-Goldstone boson having a tetrahedron geometry and symmetry. The transition …

Tetraquarks at large and large

H Allaman, M Ekhterachian, F Nardi, R Rattazzi… - arXiv preprint arXiv …, 2024 - arxiv.org
We study tetraquarks in large $ N $ QCD with heavy quarks, in the domain where non-
relativistic quantum mechanics offers an adequate approximation. Within the regime of …

From square plaquettes to triamond lattices for SU (2) gauge theory

AHZ Kavaki, R Lewis - arXiv preprint arXiv:2401.14570, 2024 - arxiv.org
Lattice gauge theory should be able to address significant new scientific questions when
implemented on quantum computers. In practice, error-mitigation techniques have already …

Hybrid static potentials from Laplacian Eigenmodes

R Höllwieser, F Knechtli, T Korzec, M Peardon… - arXiv preprint arXiv …, 2023 - arxiv.org
We present a method for computing hybrid static quark-antiquark potentials in lattice QCD
based on Laplace trial states. They are formed by eigenvector components of the covariant …

Mass Spectra of Full-Heavy and Double-Heavy Tetraquark States in the Conventional Quark Model

Q Meng, GJ Wang, M Oka - arXiv preprint arXiv:2404.01238, 2024 - arxiv.org
A comprehensive study of the $ S $-wave heavy tetraquark states with identical quarks and
antiquarks, specifically $ QQ {\bar Q'}\bar Q'$($ Q, Q'= c, b $), $ QQ\bar s\bar s $/$\bar Q\bar …