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hep-ph2026
A Levinson's theorem for particle form factors
Francesco Rosini, Simone Pacetti
We present and demonstrate a version of Levinson's theorem especially dedicated to the asymptotic behavior of form factor phases. Indeed, as required by analyticity, form factors a…
hep-ph2025★ 2 cited
Isospin strikes back
Francesco Rosini, Simone Pacetti
Assuming isospin conservation, the decay of a vector meson into the final state is purely electromagnetic. At the leading order, the ve…
hep-ph2024★ 2 cited
Microscopic parametrization of the near threshold oscillations of the nucleon time-like effective electromagnetic form factors
Francesco Rosini, Simone Pacetti, Olga Shekhovtsova +1
We present an analysis of the recent near threshold BESIII data for the nucleon time-like effective form factors. The damped oscillation emerging from the subtraction of the dipole…