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T: Fachverband Teilchenphysik

T 57: Flavour Physics 5

T 57.6: Talk

Wednesday, March 23, 2022, 17:30–17:45, T-H16

Search for the B⁰→ D⁰D⁰ decay with the LHCb experiment. — •Jonah Blank and Sophie Hollit — TU Dortmund

With precise measurements of B meson decays the LHCb experiment can test the integrity of the Standard Model of particle physics. Especially B→ D D decays are interesting to examine C P violation and further constrain the unitarity triangle. While decays to charged D^± mesons have already been well measured, the B⁰→ D⁰D⁰ decay channel has not yet been observed by any experiment.
In this analysis, data collected by the LHCb experiment at √s= 7,8 TeV and 13 TeV corresponding to an integrated luminosity of 9 fb⁻¹ is used to search for the B⁰→ D⁰D⁰ decay channel. The B⁰→ D⁰π⁺π⁻ decay channel is utilized as a normalisation mode to cancel most uncertainties. An update of the current status of the analysis will be presented.