16 citations · 25 across the 10 of their papers we have counts for
14 papers
Improving hadron creation operators for charmonium, glueballs and baryons
Juan Andrés Urrea-Niño, John Bulava, Nikolai Husung +5
Constructing hadron creation operators which properly sample the finite-volume energy spectrum is a fundamental step in lattice QCD spectroscopy and scattering calculations. Operat…
Subtraction method for disconnected diagrams in full QCD
Lorenzo Barca, Joshua Crawford, Jacob Finkenrath +2
Disconnected diagrams remain a major challenge for precision lattice QCD calculations because of their large statistical fluctuations. We investigate a subtraction method based on…
Charmonium-Glueball spectroscopy with improved hadron creation operators
Juan Andrés Urrea-Niño, Francesco Knechtli, Tomasz Korzec +1
Construction of creation operators which can properly sample the underlying energy eigenstates remains a fundamental first step in lattice QCD spectroscopy calculations, particular…
Imprint of the adjoint meson spectrum in the decay patterns of hidden-bottom tetraquarks
Sipaz Sharma, Juan Andrés Urrea-Niño, Nora Brambilla +2
We aim to clarify the experimentally observed near-degeneracy and decay patterns of the isospin, , hidden-bottom tetraquarks and with quantum numbers…
Hybrid Charmonium at Finite Temperature
Juan Andrés Urrea-Niño, Ryan Bignell, Ruaidhrí Campion +1
Drawing upon well established zero-temperature techniques, we present, for the first time in a lattice calculation, insight into the fate of the exotic charmonium state at…
Mixing of heavy and light quarks in charmonium and light mesons
Francesco Knechtli, Jacob Finkenrath, Roman Höllwieser +3
We study the system of light mesons, charmonium and glueballs in the flavor singlet scalar channel where they can mix. We use lattice QCD simulations with an almost physical charm…
S-wave flavor-singlet meson mixing in QCD with light and charm quarks
Juan Andrés Urrea-Niño, Jacob Finkenrath, Roman Höllwieser +3
We investigate the mixing between flavor-singlet light meson and charmonium operators in the S-wave channels, i.e. pseudo-scalar and vector channel, at two different pion masses. W…
Update on two-level sampling for glueball observables in quenched QCD
Lorenzo Barca, Jacob Finkenrath, Francesco Knechtli +3
We report our progress in combining a two-level sampling algorithm with distillation techniques for calculations of disconnected diagrams in quenched QCD. The simulations are perfo…
Static-light meson spectroscopy with optimal distillation profiles
Laura Struckmeier, Roman Höllwieser, Francesco Knechtli +3
The spectrum of static-light and static-charm mesons is studied using optimized distillation in two different QCD ensembles with pion masses of $m_π \approx 80…
Hybrid static potentials and gluelumps on ensembles
Roman Höllwieser, Francesco Knechtli, Tomasz Korzec +3
QCD permits the existence of hybrid mesons that are made up of both quarks and gluons, including exotic states, i.e., quantum numbers prohibited for pure quark-antiquark states, wi…
Exponential Error Reduction for Glueball Calculations Using a Two-Level Algorithm in Pure Gauge Theory
Lorenzo Barca, Francesco Knechtli, Sofie Martins +3
This study explores the application of a two-level algorithm to enhance the signal-to-noise ratio of glueball calculations in four-dimensional pure gauge theory. O…
Hybrid static potentials from Laplacian Eigenmodes
Roman Höllwieser, Francesco Knechtli, Tomasz Korzec +2
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…
Constructing static quark-anti-quark creation operators from Laplacian eigenmodes
Roman Höllwieser, Francesco Knechtli, Tomasz Korzec +2
We investigate static quark anti-quark operators based on trial states formed from eigenvectors of the covariant three-dimensional lattice Laplace operator. We test the method by c…
Optimising creation operators for charmonium spectroscopy on the lattice
Francesco Knechtli, Tomasz Korzec, Michael Peardon +1
Smearing the bare quantum fields in lattice calculations before applying composite hadron creation operators has a long record of substantially improving overlaps onto low-lying en…