8 papers
Three-body interactions from the finite-volume QCD spectrum
Ruairí Brett, Chris Culver, Maxim Mai +3
We perform a fit of the finite-volume QCD spectrum of three pions at maximal isospin to constrain the three-body force. We use the unitarity-based relativistic three-particle quant…
Finite-volume energy spectrum of the system
Andrei Alexandru, Ruairí Brett, Chris Culver +4
The dynamics of multi-kaon systems are of relevance for several areas of nuclear physics. However, even the simplest systems, two and three kaons, are hard to prepare and study exp…
Setting the scale for nHYP fermions with the Lüscher-Weisz gauge action
Hossein Niyazi, Andrei Alexandru, Frank X. Lee +1
Lattice QCD calculations using gauge smearing for fermion kernels are computationally efficient. Hypercubic blocking (nHYP smearing) has been shown to reduce scaling errors. In thi…
Three pion spectrum in the channel from lattice QCD
Chris Culver, Maxim Mai, Ruairí Brett +2
Three-body states are critical to the dynamics of many hadronic resonances. We show that lattice QCD calculations have reached a stage where these states can be accurately resolved…
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…