Corpus ID: 237940958

Revisiting Inclusive Decay Widths of Charmed Mesons

  title={Revisiting Inclusive Decay Widths of Charmed Mesons},
  author={Daniel King and Alexander Lenz and Maria Laura Piscopo and Thomas Rauh and Aleksey V. Rusov and Christos Vlahos},
Determining for the first time the Darwin operator contribution for the non-leptonic charm-quark decays and using new non-perturbative results for the matrix elements of ∆C = 0 four-quark operators, including eye-contractions, we present a comprehensive study of the lifetimes of charmed mesons and inclusive semileptonic decay rates as well as the ratios, within the framework of the Heavy Quark Expansion (HQE). We find good agreement with experiment for the ratio τ(D+)/τ(D0), for the total D+ s… Expand
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