Particle and Astro-Particle Physics Seminars

Precise perturbative flavour symmetry breaking in D decays

Name: Precise perturbative flavour symmetry breaking in D decays
Start: 2015-08-21T14:00:00+02:00
End: 2015-08-21T15:00:00+02:00
Location: CERN

by Michael Gronau (Technion - Israel Institute of Technology)

Friday 21 Aug 2015, 14:00 → 15:00 Europe/Zurich

4/3-006 - TH Conference Room (CERN)

4/3-006 - TH Conference Room

CERN

110

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Description

Flavour SU(3) has been known to describe adequately hadronic charmed meson decay amplitudes with SU(3) breaking corrections of 20-30%. I will describe a new approach treating perturbatively high order SU(3) breaking. I will focus on predicted amplitude relations affected by tiny fourth order SU(3) breaking terms varying between 10^{-3} and 10^{-4}. SU(3) relations failing at such high precision could provide evidence for new physics in the flavour sector.