Work

Optimized binning for response function reconstruction via Chebyshev expansions

Year: 2025

Type: article

Abstract: We propose an optimized histogram binning strategy to reconstruct nuclear response functions via the Chebyshev expansion bound-state method. Our approach employs a stochastic regularization of the density of states to define adaptive, equal-area bins. Using the deuteron solved in a harmonic-oscillator basis with a chiral interaction, we benchmark on dipole and longitudinal responses, obtaining excellent agreement with exact theory and experiment. This general framework readily extends to other many-body systems and opens the door to new ab initio calculations of lepton-nucleus cross sections in medium-mass nuclei.

Source: Physical Review C

DOI: 10.1103/lb85-2487

Authors: Immo C. Reis, Joanna E. Sobczyk, Sonia Bacca

Institutions: Johannes Gutenberg University Mainz, Chalmers University of Technology, Helmholtz Institute Mainz

Language: English

Topic: Nuclear physics research studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Deutsche Forschungsgemeinschaft

Awards: G5608225264, G6555485371