Advanced parametrisations for hadronic form factors

by Nienke Balz

Monday 19 Oct 2026, 16:00 → 17:00 Europe/Berlin

D308 (ENC)

The rich analytic structure of hadronic form factors makes a theoretically consistent yet easily applicable parametrisation cumbersome. Consequently, most parametrisations are limited to reproducing the simplest analytic features sufficient to describe form factors on their first Riemann sheet. In this talk, I introduce two novel form factor parametrisations that allow resonance poles and left-hand cuts on the second Riemann sheet to be studied, while also making the connection to partial-wave amplitudes manifest. Furthermore, I will also be discussing some of the potential problems when looking at partial-wave amplitudes in these parametrisations and possible solutions to those problems.