Aachen 2019 – scientific programme

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T: Fachverband Teilchenphysik

T 88: Flavorphysik III

T 88.7: Talk

Thursday, March 28, 2019, 17:35–17:50, S15

Measurement of the branching ratio of B_s⁰ → D^*± D^∓ with the LHCb experiment — Philipp Ibis, •Antje Mödden, and Margarete Schellenberg — Experimentelle Physik 5, TU Dortmund

Precision measurements testing the Standard Model are performed at the LHCb experiment, two important goals of which are the observation of new decays and measurements of their branching ratios. Although the decay B_s⁰ → D^*± D^∓ has not yet been experimentally observed, an excess of B_s⁰ → D^*± D^∓ candidates has been seen in the measurement of CP violation in the B⁰ → D^*± D^∓ decay. By measuring the branching ratio relative to the decay B⁰ → D^*± D^∓, most uncertainties cancel due to the similarity of both decay channels.
The talk will cover the current status of the analysis of the branching ratio of the decay B_s⁰ → D^*± D^∓ using the full dataset of the LHCb experiment corresponding to an integrated luminosity of 9 fb⁻¹.