Webpage out of date as of 2022-01-01

ruairí brett

Currently: ML Engineer in industry

Previously: Postdoctoral Scientist at The George Washington University

Publication records:

INSPIRE-HEP
arxiv
google scholar

Research Interests:

• lattice gauge theories
• hadron/glueball spectroscopy
• scattering from field theories in finite-volume
• quantum computing for gauge theories
• GPU parallelism in scientific computing

Publications:

• The spectrum of qubitized QCD: glueballs in a S(1080) gauge theory
  Andrei Alexandru, Paulo F. Bedaque, Ruairí Brett, Henry Lamm
  arXiv:2112.08482 [hep-lat]
  10.1103/PhysRevD.105.114508
  Phys.Rev.D 105 (2022) 11, 114508
  
  
• Pole position of the a₁(1260) resonance in a three-body unitary framework
  Daniel Sadasivan, Andrei Alexandru, Hakan Akdag, Felipe Amorim, Ruairí Brett, Chris Culver, Michael Döring, Frank X. Lee, Maxim Mai
  arXiv:2112.03355 [hep-ph]
  10.1103/PhysRevD.105.054020
  Phys.Rev.D 105 (2022) 5, 054020
  
  
• Validation of the finite-volume quantization condition for two spinless particles
  Frank X. Lee, Andrei Alexandru, Ruairí Brett
  arXiv:2107.04430 [hep-lat]
  10.1103/PhysRevD.105.054517
  Phys.Rev.D 105 (2022) 5, 054517
  
  
• Three-body dynamics of the a₁(1260) resonance from lattice QCD
  Maxim Mai, Andrei Alexandru, Ruairí Brett, Chris Culver, Michael Döring, Frank X. Lee, Daniel Sadasivan
  arXiv:2107.03973 [hep-lat]
  10.1103/PhysRevLett.127.222001
  Phys.Rev.Lett. 127 (2021) 22, 222001
  
  
• Three-body interactions from the finite-volume QCD spectrum.
  Ruairí Brett, Chris Culver, Maxim Mai, Andrei Alexandru, Michael Döring, Frank X. Lee
  arXiv:2101.06144 [hep-lat]
  10.1103/PhysRevD.104.014501
  Phys.Rev.D 104 (2021) 1, 014501
  
  
• Finite-volume energy spectrum of the K⁻ K⁻ K⁻ system.
  Andrei Alexandru, Ruairí Brett, Chris Culver, Michael Döring, Dehua Guo, Frank X. Lee, Maxim Mai
  arXiv:2009.12358 [hep-lat]
  10.1103/PhysRevD.102.114523
  Phys.Rev. D102 (2020) 11, 114523
  
  
• Setting the scale for nHYP fermions with the Lüscher-Weisz gauge action.
  Hossein Niyazi, Andrei Alexandru, Frank X. Lee, Ruairí Brett
  arXiv:2008.13022 [hep-lat]
  10.1103/PhysRevD.102.094506
  Phys.Rev. D102 (2020) 9, 094506
  
  
• Three body spectrum from lattice QCD
  Chris Culver, Maxim Mai, Ruairí Brett, Andrei Alexandru, Michael Döring
  arXiv:1911.09047 [hep-lat]
  10.1103/PhysRevD.101.114507
  Phys.Rev. D101 (2020) 11, 114507
  
  
• The Scalar Glueball and K$\pi$ Scattering from Lattice QCD
  Ruairí Brett
  Ph.D. Thesis
  
  
• Determination of $s$- and $p$-wave $I=1/2$ $K\pi$ scattering amplitudes in $N_{\mathrm{f}}=2+1$ lattice QCD
  Ruairí Brett, John Bulava, Jacob Fallica, Andrew Hanlon, Ben Hörz, Colin Morningstar
  arXiv:1802.03100 [hep-lat]
  10.1016/j.nuclphysb.2018.05.008
  Nucl.Phys. B932 (2018) 29-51
  
  
• Estimating the two-particle $K$-matrix for multiple partial waves and decay channels from finite-volume energies
  Colin Morningstar, John Bulava, Bijit Singha, Ruairí Brett, Jacob Fallica, Andrew Hanlon, Ben Hörz
  arXiv:1707.05817 [hep-lat]
  10.1016/j.nuclphysb.2017.09.014
  Nucl.Phys. B924 (2017) 477-507
  
  

Conference Proceedings:

• Higher order quantization conditions for two spinless particles
  Frank X. Lee, Andrei Alexandru, Ruairí Brett
  arXiv:2110.03750 [hep-lat]
  
  
• Including Tetraquark Operators in the Low-Lying Scalar Meson Sectors in Lattice QCD
  Daniel Darvish, Ruairí Brett, John Bulava, Jacob Fallica, Andrew Hanlon, Ben Hörz, Colin Morningstar
  arXiv:1909.07747 [hep-lat]
  10.1063/5.0008966
  AIP Conf.Proc. 2249 (2020) 1, 030021
  
  
• Spectroscopy From The Lattice: The Scalar Glueball
  Ruairí Brett, John Bulava, Daniel Darvish, Jacob Fallica, Andrew Hanlon, Ben Hörz, Colin Morningstar
  arXiv:1909.07306 [hep-lat]
  10.1063/5.0008566
  AIP Conf.Proc. 2249 (2020) 1, 030032
  
  
• $K\pi$ scattering and excited meson spectroscopy using the stochastic LapH method
  Ruairí Brett, John Bulava, Jacob Fallica, Andrew Hanlon, Ben Hörz, Colin Morningstar
  arXiv:1810.11311 [hep-lat]
  10.22323/1.334.0071
  PoS LATTICE2018 (2019) 071
  
  
• Scattering phase shift determinations from a two-scalar field theory
  Daniel Darvish, Ruairí Brett, John Bulava, Jacob Fallica, Andrew Hanlon, Colin Morningstar
  arXiv:1810.11433 [hep-lat]
  10.22323/1.334.0070
  PoS LATTICE2018 (2018) 070
  
  
• Scattering from finite-volume energies including higher partial waves and multiple decay channels
  Ruairí Brett, John Bulava, Jacob Fallica, Andrew Hanlon, Ben Hörz, Colin Morningstar, Bijit Singha
  arXiv:1710.04169 [hep-lat]
  10.1051/epjconf/201817505005
  EPJ Web Conf. 175 (2018) 05005
  
  

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