Thesis defense of Jan Langer

of the Bs->D*+D*- decay. The decay is observed with a significance of more than $10$ standard deviations. The absolute time-integrated Bs->D*+D*- branching fraction is measured to be B(Bs->D*+D*-) = (2.15 [...] ich) + ZOOM In this thesis, two measurements probing the Standard Model of particle physics in B->D*+D*- decays are presented. Both measurements are performed using proton-proton collision data recorded [...] BdToDstDst decays. As the final state is a mixture of CP-even and CP-odd states, the CP observable S(D*+D*-) is diluted. Therefore, an angular analysis is performed to determine the dilution factor. The current …