München 2009 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 16: Flavorphysik (Theorie) 3

T 16.2: Vortrag

Donnerstag, 12. März 2009, 17:00–17:15, M001

Electroweak corrections to K⁺→π⁺νν and K_L→π⁰νν — •Emmanuel Stamou — Techniche Universität München, Boltzmannstraße 2, 85748 Garching

The rare decays K⁺→π⁺νν and K_L→π⁰νν are strongly suppressed in the standard model. The sensitivity to high energy phenomena makes these processes prime candidates to test the standard model and discriminate various scenarios of new physics. Recent theoretical progress together with the smallness of hadronic uncertainties allows for a precise theory prediction. However, one of the dominant uncertainty arising from the two-loop electroweak corrections from top quark contributions is still unknown. In this talk I shall discuss the calculation of these corrections.