3 papers
physics.data-an2026
Analytically Consistent Reconstruction of Finite Data Using Padé Sequences
Emerson Díaz, Balma Duch, Pere Masjuan
Reconstructing the analytic structure of a function from finite datasets is a fundamental problem across theoretical, numerical, and experimental physics. While Padé approximants p…
hep-ph2026
Assessing the role of threshold conditions in the determination of uncertainties in pole extractions using Padé approximants
Balma Duch, Pere Masjuan
In this letter, we discuss the determination of the resonance by analytic continuation through Padé approximants of the -scattering amplitude from the physical re…
hep-ph2026
Box at Low Energy
Balma Duch, Pere Masjuan, Hubert Spiesberger
We calculate the 1-loop box-graph correction to electron-quark scattering at low energy and low momentum transfer. Both electron and quark masses are kept non-zero. From our…