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T: Fachverband Teilchenphysik

T 94: Flavour Physics VI

T 94.6: Vortrag

Freitag, 4. April 2025, 10:15–10:30, VG 1.104

Search for the B⁰→ D⁰D⁰ decay with the LHCb experiment — Johannes Albrecht, •Jonah Blank, Quentin Führing, and Sophie Hollitt — TU Dortmund University, Dortmund, Germany

With precise measurements of B meson decays, the LHCb experiment can test the integrity of the Standard Model of particle physics. B → D D decays are particularly interesting probes of CP violation, further constraining 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 in pp collisions by the LHCb experiment at √s = 7, 8 and 13 TeV corresponding to an integrated luminosity of 9 fb⁻¹ is used to search for the B⁰→ D⁰D⁰ decay channel. The topologically similar B⁰→ D⁰π⁺π⁻ decay channel is utilized as a normalisation mode to cancel systematic uncertainties.
An update on the current status of the analysis will be presented.

Keywords: CPV; BR analysis; LHCb; B2OC