22-28 July 2010
Palais des Congrès de Paris
Europe/Paris timezone

Charm mixing in the Standard Model

24 Jul 2010, 09:00
Salle 253

Salle 253

Parallel Session Talk 05 - Heavy Quarks Properties (experiment and theory) 05 - Heavy Quarks Properties (experiment and theory)


Markus Bobrowski (University of Regensburg)


We investigate the mixing of neutral charmed mesons within the Standard Model (SM), using the framework of Heavy Quark Expansion (HQE). In a recent study, we have argued that a CP phase of the order of 1 per mille to 1 per cent could be present in charm mixing in the SM. Our arguments rely on the enhancement of higher-dimensional terms in the HQE due to a lifting of the severe GIM suppression inherent to the dimension-six result. We propose a factorisation approach to quantify the amount of SU(3) symmetry breaking in dimension 10 and 12 on more solid grounds and report on first numerical results of this study.

Primary authors

Prof. Alexander Lenz (TU Dortmund) Markus Bobrowski (University of Regensburg)

Presentation Materials