Heidelberg 2007 – scientific programme

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T: Fachverband Teilchenphysik

T 406: Flavour Theorie I

T 406.5: Talk

Thursday, March 8, 2007, 17:45–18:00, KIP SR 2.401

Using radiative return method to measur Lambda form factors at B-meson factories — •Agnieszka Grzelinska¹, Johann Kuhn¹, and Henryk Czyz² — ¹Institute for Theoretical Particle Physics, University of Karlsruhe, Germany — ²Institute of Physics, University of Silesia,40-007 Katowice, Poland

e propose to extract the Lambda form factor by means of the radiative return method profitting from the self analyzing Lambda -> pi^- p (Lambda bar -> pi^+ pbar) decays. At B-factories, due to their large luminosities, one can expect decent statistics allowing for fairly accurate analysis of that process. The analysis was performed based on the implementation of the process e^+e^- -> Lambda (-> pi^- p) Lambda bar (-> pi^+ pbar) gamma into the PHOKHARA event generator. Both details of the implementation and the analysis will be presented.