Bonn 2020 – scientific programme

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T: Fachverband Teilchenphysik

T 51: Flavor physics: CKM I

T 51.9: Talk

Wednesday, April 1, 2020, 18:30–18:45, H-HS XI

Studies of B_(s)⁰ → D^{(∗) +}D⁻ decays with the LHCb experiment — •Philipp Ibis, Antje Mödden, and Margarete Schellenberg — Experimentelle Physik 5, TU Dortmund

The LHCb experiment searches for physics beyond the Standard Model by performing high precision tests of beauty and charm hadrons. Among these are decay-time-dependent measurements of CP violation of neutral meson.

In B⁰ → D^(∗)+D⁻ decays, CP violation occurs in the interference of direct decays and decays after mixing of the B⁰ mesons. Time-dependent measurements of decays of initial B⁰ and B⁰ mesons allow the determination of the CP asymmetry and give access to the CKM angle β.

Analyses of CP violation in B⁰ → D⁺D⁻ and B⁰ → D^{∗ +}D⁻ decays are presented using the full LHCb dataset. Also, a measurement of the branching ratio of the decay B_s⁰ → D^{∗ +}D⁻ relative to B⁰ → D^{∗ +}D⁻ is presented.