Charm Form Factors at Cleo-c

Many precision tests of the Standard Model require input from Lattice QCD or other QCD techniques. Of particular importance are the semileptonic form factors used to extract Vub in semileptonic B decays. Similarities between the D and B sector make charm semileptonic decays an excellent testing ground for the increasingly precise predictions of Lattice QCD. CLEO‐c has recently used its entire data sample to produce a set of measurements involving the decays D0→π−e+νe, D0→K−e+νe, D+π0e+νe, and D+K0e+νe. These results, which include the world’s most precise measurements of D→π form factors, are in agreement with currently available theoretical results and are significantly more precise.