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Pole position of the $a_{1} (1260)$ resonance in a three-body unitary framework

https://doi.org/10.1103/PhysRevD.105.054020

Sadasivan, Daniel; Alexandru, Andrei; Akdag, Hakan; Amorim, Felipe; Brett, Ruairí; Culver, Chris; Döring, Michael; Lee, Frank X.; Mai, Maxim (March 2022, Physical Review D)

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Three-Body Dynamics of the $a_{1} (1260)$ Resonance from Lattice QCD

https://doi.org/10.1103/PhysRevLett.127.222001

Mai, Maxim; Alexandru, Andrei; Brett, Ruairí; Culver, Chris; Döring, Michael; Lee, Frank X.; Sadasivan, Daniel (November 2021, Physical Review Letters)

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Three-body interactions from the finite-volume QCD spectrum

https://doi.org/10.1103/PhysRevD.104.014501

Brett, Ruairí; Culver, Chris; Mai, Maxim; Alexandru, Andrei; Döring, Michael; Lee, Frank X. (July 2021, Physical Review D)
null (Ed.)
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Energy spectrum of two-particle scattering in a periodic box

https://doi.org/10.1142/S0129183120501314

Lee, Frank X.; Morningstar, Colin; Alexandru, Andrei (September 2020, International Journal of Modern Physics C)
null (Ed.)
We aim to compute the discrete energy spectrum for two-body scattering in a three-dimensional box under periodic boundary conditions. The spectrum in the center of mass is obtained by solving the Schödinger equation in a test potential using the Fourier basis. The focus is on how to project the spectrum into the various irreducible representations of the symmetry groups of the box. Four examples are given to show how the infinite-volume spectrum (including both bound and scattering states) is resolved in cubic or elongated boxes, and in systems with integer or half-integer total spin. Such a demonstration is a crucial step in relating the discrete spectrum in the box to the infinite-volume scattering phaseshifts via the Lüscher method.
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Finite-volume energy spectrum of the $K^{-} K^{-} K^{-}$ system

https://doi.org/10.1103/PhysRevD.102.114523

Alexandru, Andrei; Brett, Ruairí; Culver, Chris; Döring, Michael; Guo, Dehua; Lee, Frank X.; Mai, Maxim (December 2020, Physical Review D)
null (Ed.)
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