112 citations · 1.1k across the 53 of their papers we have counts for
7 papers · 1 filter
Three-body resonances in the theory
Marco Garofalo, Maxim Mai, Fernando Romero-López +2
We study the properties of three-body resonances using a lattice complex scalar theory with two scalars, with parameters chosen such that one heavy particle can decay into th…
Sampling QCD field configurations with gauge-equivariant flow models
Ryan Abbott, Michael S. Albergo, Aleksandar Botev +11
Machine learning methods based on normalizing flows have been shown to address important challenges, such as critical slowing-down and topological freezing, in the sampling of gaug…
Elastic nucleon-pion scattering at from lattice QCD
John Bulava, Andrew D. Hanlon, Ben Hörz +6
Elastic nucleon-pion scattering amplitudes are computed using lattice QCD on a single ensemble of gauge field configurations with dynamical quark flavors and $m_π…
Gauge-equivariant flow models for sampling in lattice field theories with pseudofermions
Ryan Abbott, Michael S. Albergo, Denis Boyda +9
This work presents gauge-equivariant architectures for flow-based sampling in fermionic lattice field theories using pseudofermions as stochastic estimators for the fermionic deter…
Resonance form factors from finite-volume correlation functions with the external field method
Jonathan Lozano, Ulf-G. Meißner, Fernando Romero-López +2
A novel method for the extraction of form factors of unstable particles on the lattice is proposed. The approach is based on the study of two-particle scattering in a static, spati…
Flow-based sampling in the lattice Schwinger model at criticality
Michael S. Albergo, Denis Boyda, Kyle Cranmer +7
Recent results suggest that flow-based algorithms may provide efficient sampling of field distributions for lattice field theory applications, such as studies of quantum chromodyna…
A lattice study of scattering at large
Jorge Baeza-Ballesteros, Pilar Hernández, Fernando Romero-López
We present the first lattice study of pion-pion scattering with varying number of colors, . We use lattice simulations with four degenerate quark flavors, $N_\text{f}=4…