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20222026
most citedTwo-current transition amplitudes with two-body final states

10 citations · 10 across the 13 of their papers we have counts for

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hep-lat2026

On the equivalence of left-hand-cut and three-body formalisms

André Baião-Raposo, Raul Briceño, Sebastian M. Dawid

The "left-hand cut problem" in lattice QCD arises when exchange singularities invalidate standard relations used to extract scattering amplitudes from the finite-volume spectrum. I…

hep-lat2026

Analytic decomposition of two-body electroweak processes with left-hand cuts

André Baião-Raposo, Raúl A. Briceño, Nicolas Lang +2

We derive an on-shell representation for electroweak transition amplitudes involving two hadrons in both the initial and final state for systems where there are left-hand…

hep-lat2025

Isotensor scattering with a resonant subsystem from QCD

Raúl A. Briceño, Maxwell T. Hansen, Andrew W. Jackura +2

This work presents a lattice quantum chromodynamics (QCD) determination of scattering amplitudes for the isospin-2 channel with angular momentum and parity . The…

hep-lat2025

Implementing the finite-volume three-pion scattering formalism across all non-maximal isospins

Athari Alotaibi, Maxwell T. Hansen, Raúl A. Briceño

We present a numerical exploration of the relativistic-field-theory (RFT) formalism for three pions with all possible values of non-maximal isospin, , and . Usi…

hep-lat2025

Real-time Estimators for Scattering Observables: A full account of finite volume errors for quantum simulation

Ivan M. Burbano, Marco A. Carrillo, Rana Urek +2

The real-time correlators of quantum field theories can be directly probed through new approaches to simulation, such as quantum computing and tensor networks. This provides a new…

hep-lat2025

Simulating lattice fermion doubling with a Floquet drive

Raúl A. Briceño, William Gyory, Thomas Iadecola +1

We consider a recently discovered mathematical correspondence between the spectra of a naively discretized lattice fermion and that of a periodically driven (i.e., Floquet) quantum…

hep-lat2025

Signs of Non-Monotonic Finite-Volume Corrections to

Zack B. Hall, Dimitra A. Pefkou, Aaron S. Meyer +10

We study finite-volume (FV) corrections to determinations of via lattice quantum chromodynamics (QCD) using analytic results and numerical analysis. We observe that H…

hep-lat2025

Extracting scattering amplitudes for arbitrary two-particle systems with one-particle left-hand cuts via lattice QCD

André Baião Raposo, Raúl A Briceño, Maxwell T Hansen +1

We derive a general formalism that relates the spectrum of two-particle systems in a finite volume to physical scattering amplitudes, taking into account the presence of any left-h…

hep-lat2024

Electroweak three-body decays in the presence of two- and three-body bound states

Raul A. Briceño, Andrew Jackura, Dimitra A. Pefkou +1

Recently, formalism has been derived for studying electroweak transition amplitudes for three-body systems both in infinite and finite volumes. The formalism provides exact relatio…

hep-lat2022★ 10 cited

Two-current transition amplitudes with two-body final states

Keegan H. Sherman, Felipe G. Ortega-Gama, Raúl A. Briceño +1

We derive the on-shell form of amplitudes containing two external currents with a single hadron in the initial state and two hadrons in the final state, denoted as $1+\mathcal{J}\t…