activity
20152026
most citedEstimating the two-particle -matrix for multiple partial waves and decay channels from finite-volume energies

79 citations · 108 across the 10 of their papers we have counts for

collaborators

10 papers

hep-lat2026

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…

hep-ph2019★ 15 cited

Roper State from Overlap Fermions

Mingyang Sun, Ying Chen, Gen Wang +11

The Roper state is extracted with valence overlap fermions on a -flavor domain-wall fermion lattice (spacing fm and MeV) using both the Sequential Empi…

hep-lat2019★ 1 cited

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…

hep-lat2019★ 10 cited

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…

hep-lat2018

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…

hep-lat2018

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…

hep-lat2018

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…

hep-lat2017★ 3 cited

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…

hep-lat2017★ 79 cited

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…

hep-lat2015

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…