79 citations · 108 across the 10 of their papers we have counts for
9 papers · 1 filter
Investigating the role of tetraquark operators in lattice QCD studies of the and resonances
Andrew D. Hanlon, Daniel Darvish, Sarah Skinner +7
The role of tetraquark operators in studying the isodoublet strange and isovector nonstrange scalar mesons in lattice QCD is examined using an ensemble with $m_π\app…
Including Tetraquark Operators in the Low-Lying Scalar Meson Sectors in Lattice QCD
Daniel Darvish, Ruairí Brett, John Bulava +4
Lattice QCD allows us to probe the low-lying hadron spectrum in finite-volume using a basis of single- and multi-hadron interpolating operators. Here we examine the effect of inclu…
Spectroscopy From The Lattice: The Scalar Glueball
Ruairí Brett, John Bulava, Daniel Darvish +4
Lattice calculations allow us to probe the low-lying, non-perturbative spectrum of QCD using first principles numerical methods. Here we present the low-lying spectrum in the scala…
Coupling to Multihadron States with Chiral Fermions
Jacob Fallica, Keh-Fei Liu, Jian Liang +2
Chiral symmerty is presumed to be a crucial component in the strong interaction and QCD, but its role in spectroscopy, especially for baryons, has not been fully explored. Compound…
Scattering phase shift determinations from a two-scalar field theory
Daniel Darvish, Ruairí Brett, John Bulava +3
A field theory involving two interacting scalar fields, previously studied by Rummukainen and Gottlieb, is revisited. Our study is not restricted to the limit of large quartic coup…
scattering and excited meson spectroscopy using the stochastic LapH method
Ruairí Brett, John Bulava, Jacob Fallica +3
Elastic , - and -wave scattering amplitudes are simultaneously calculated using a Lüscher style analysis on a single ensemble of dynamical Wilson-clover fermions…
Scattering from finite-volume energies including higher partial waves and multiple decay channels
Ruairí Brett, John Bulava, Jacob Fallica +4
A new implementation of estimating the two-to-two -matrix from finite-volume energies based on the Luescher formalism is described. The method includes higher partial waves and…
Estimating the two-particle -matrix for multiple partial waves and decay channels from finite-volume energies
Colin Morningstar, John Bulava, Bijit Singha +4
An implementation of estimating the two-to-two -matrix from finite-volume energies based on the Lüscher formalism and involving a Hermitian matrix known as the "box matrix" is d…
Excited-state energies and scattering phase shifts from lattice QCD with the stochastic LapH method
Colin Morningstar, John Bulava, Brendan Fahy +5
Recent results in computing excited-state energies and meson-meson scattering phase shifts in lattice QCD are presented. A stochastic method of treating the low-lying modes of quar…