[NT/RIKEN seminar] D meson mixing via dispersion relation

by Hsiang-nan Li (National Center for Theoretical Sciences, Physics Division, Taiwan)

Friday 14 Jun 2019, 14:00 → 15:00 US/Eastern

CFNS room 2-38 (510A)

In this talk I will explain how to calculate the D meson 
mixing parameters x and y in the Standard Model. Charm
physics is notoriously difficult, because most effective
theories and perturbation theories do not apply well.
I propose to study the D meson mixing via a dispersion 
relation, which relates low mass dynamics to high mass one.
Taking heavy quark results as inputs in the high mass region,
we obtain x and y consistent with experimental data at least
in order of magnitude.