Kinematically enhanced interpolating operators for boosted hadrons

Year: 2025

Type: article

Abstract: We propose to use interpolating operators for lattice quantum chromodynamics calculations of highly boosted pions and nucleons with kinematically enhanced ground-state overlap factors at large momentum. Because this kinematic enhancement applies to the signal but not the variance of the correlation function, these interpolating operators can achieve better signal-to-noise ratios at large momentum. We perform proof-of-principle calculations with boosted pions and nucleons using close-to-physical and larger quark masses to explore the utility of our proposal. Results for effective energies and matrix elements, as well as Lanczos ground-state energy estimators, are consistent with theoretical expectations for signal-to-noise improvement at large momenta.

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

DOI: 10.1103/6dh4-6k4t

Authors: Rui Zhang, Anthony V. Grebe, Daniel C. Hackett, Michael L. Wagman, Yong Zhao

Institutions: Argonne National Laboratory, Fermi National Accelerator Laboratory

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: U.S. Department of Energy, Office of Science, High Energy Physics, Nuclear Physics, Laboratory Directed Research and Development, Argonne National Laboratory

OpenAlex ID: W4406032294