Mainz 2022 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 19: Hadron Structure and Spectroscopy III
HK 19.1: Gruppenbericht
Montag, 28. März 2022, 16:00–16:30, HK-H8
Coupled Channel Partial Waves Analysis with PAWIAN — •Meike Küßner1, Bertram Kopf1, Malte Albrecht1, Fritz-Herbert Heinsius1, Helmut Koch1, Marc Pelizäus1, Xiaoshuai Qin1, Matthias Steinke1, Ulrich Wiedner1, and Lianjin Wu2 — 1Ruhr-Universität Bochum, Germany — 2Shandong University, Qingdao, China
The light meson regime still holds open questions that can only be answered using sophisticated analysis strategies to describe the data. Coupled channel partial wave analyses offer unique possibilities to disentangle the different states in the highly populated spectrum of light mesons and to overcome challenges such as interfering and overlapping resonances that decay into multiple channels and occur close to kinematical thresholds.
This also requires the use of performant software that incorporates sophisticated dynamical models taking into account unitarity and analyticity constraints. The software package PAWIAN offers such possibilities and proved its capabilities in recent coupled channel analyses. The talk will discuss recent results of coupled channel analyses performed with data stemming from different production mechanisms like pp annihilation, π− p scattering, radiative J/ψ decays and two-photon production as well as ππ scattering and discuss future objectives.
Supported by DFG CRC110 and FOR 2359