[Theory-seminars] Theory Seminar Monday (hybrid) - Dominik Stamen

[Zheng-Yang Li]

Dear all,

On Monday, March 4th, 2024 at 1pm EST, we will have a hybrid seminar given by Dominik Stamen of Bonn University in CC L102 and on the Zoom for Government link:

https://jlab-org.zoomgov.com/j/1603009263?pwd=blNmNVFqM253R1RoZWp4VXRxMXJhUT09

Please see below for the title and abstract.


Theory Seminar: March 4th, 1pm EST (hybrid)


Speaker: Dominik Stamen (Bonn University)


Title: Dispersion-theoretical methods for three-body decays and Primakoff reactions


Abstract: In this talk, I will discuss how dispersion-theoretical methods can be used in three-body decays and Primakoff reactions. Decays into three particles are often described in terms of two-body resonances and a non-interacting spectator particle. To go beyond this simplest isobar model, crossed-channel rescattering effects need to be accounted for. Inclusion of crossed-channel effects is achieved by solving the Khuri-Treiman integral equations. We quantify the importance of these rescattering effects in three-pion systems for different decay masses and angular-momentum quantum numbers. Furthermore a dispersion-theoretical analysis of the reaction amplitudes $\gamma K\to K\pi$, based on modern pion-kaon P-wave phase shift input, will be introduced. Thereby providing a model-independent framework for future analyses of high-precision kaon Primakoff data. Additionally these amplitudes can be used in kaon Compton scattering to extract kaon polarizabilities.


See you on Monday.


Best regards,

Caroline, Joe, and Zheng-Yang

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