Work

Nevanlinna-Pick interpolation from uncertain data

Year: 2026

Type: article

Abstract: The calculation of inclusive processes that involve the production of many particles is a challenge for lattice quantum chromodynamics (QCD), a Euclidean-space method that is far removed from real-time, multiparticle production. A new approach to this problem based on Nevanlinna-Pick interpolation has been proposed by Bergamaschi Here we extend their method by exploring the propagation of the statistical and systematic errors that accompany a lattice QCD calculation through this interpolation process. A simplified example of a multiparticle spectral function is studied with a focus on the possible applications of these methods to the calculation of inclusive heavy-particle decays.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/brwx-k3xf

Authors: Sarah Fields, Norman Christ

Institution: Columbia University

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: Office of Science, National Science Foundation Graduate Research Fellowship Program

Awards: G269539270, THEORETICAL HIGH ENERGY PHYSICS