M. Mulder

Anatomy of

The decays B 0 ! D d D + d and B 0 s ! D s D + probe the CP-violating mixing phases d and s, respectively. The theoretical uncertainty of the corresponding determinations is limited by contributions from penguin topologies, which can be included with the help of the U-spin symmetry of the strong interaction. We analyse the currently available data for B 0 ! D d;s D + d;s decays and those with similar dynamics to constrain the involved non-perturbative parameters. Using further information from semileptonic B 0 ! D d ‘ + ‘ decays, we perform a test of the factorisation approximation and take non-factorisable SU(3)-breaking corrections into account. The branching ratios of the B 0 ! D d D + , B 0 ! D s D + d and B 0 ! D s D + s , B 0 ! D d D +A bstractThe decays Bd0 → Dd−Dd+ and Bs0 → Ds−Ds+ probe the CP-violating mixing phases ϕd and ϕs, respectively. The theoretical uncertainty of the corresponding determinations is limited by contributions from penguin topologies, which can be included with the help of the U-spin symmetry of the strong interaction. We analyse the currently available data for Bd,s0 → Dd,s−Dd,s+ decays and those with similar dynamics to constrain the involved non-perturbative parameters. Using further information from semileptonic Bd0 → Dd−ℓ + νℓ decays, we perform a test of the factorisation approximation and take non-factorisable SU(3)-breaking corrections into account. The branching ratios of the Bd0 → Dd−Dd+, Bs0 → Ds−Dd+ and Bs0 → Ds−Ds+, Bd0 → Dd−Ds+ decays show an interesting pattern which can be accommodated through significantly enhanced exchange and penguin annihilation topologies. This feature is also supported by data for the Bs0 → Dd−Dd+ channel. Moreover, there are indications of potentially enhanced penguin contributions in the Bd0 → Dd−Dd+ and Bs0 → Ds−Ds+ decays, which would make it mandatory to control these effects in the future measurements of ϕd and ϕs. We discuss scenarios for high-precision measurements in the era of Belle II and the LHCb upgrade.The decays

B\rightarrow D\bar{D}

B_d^0\rightarrow D_d^-D_d^+

Decays

and

Improved performance of the LHCb Outer Tracker in LHC Run 2

B_s^0\rightarrow D_s^-D_s^+

Anatomy of \( B\to D\overline{D} \) decays

probe the CP-violating mixing phases

First observation of forward Z -> b(b)over-bar production in pp collisions at root s=8 TeV

\phi_d

Search for excited B-c(+) states

and

First observation of B+ -> D-s(+) K+ K- decays and a search for B+ -> D-s(+) phi decays

\phi_s

Anatomy of B→DD¯ decays

, respectively. The theoretical uncertainty of the corresponding determinations is limited by contributions from penguin topologies, which can be included with the help of the

Anatomy of B → D D ¯

U