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Arbeitsgruppe Albrecht
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Event:
7/11/2025
Special colloquium: Application of light-cone sum rules (LCSRs) to D(s)->Pl+l- decays
modes using U-spin symmetry. Finally, I present results for Cabibbo-favoured modes, Ds+ → π+ℓℓ and D0 → K0ℓℓ, which proceed via the same weak annihilation mechanism as a byproduct of our analysis. More i [...] 0 D+ → π+ℓℓ decays are of much interest from the point of view of GIM cancellation and potential new sources of the FCNC c → u transitions. The hadronic amplitude of this decay is dominated by the combination …