Charm hadrons and lattice QCD

Abstract

We review two lattice calculations involving charm hadrons: a determination of the vector and scalar form factors of the semileptonic $D\to \pi \ell \nu$ decays, which are relevant for the extraction of the CKM matrix element $|V_{cd}|$ from experimental data, and a calculation of the matrix elements of four-fermion operators relevant to the description of the neutral D mixing in the Standard Model and its extensions. Both analyses are based on the gauge configurations produced by the European Twisted Mass Collaboration with $N_f=2+1+1$ flavors of dynamical quarks. We simulated at three different values of the lattice spacing and with pion masses as small as 210 MeV.

12 pages, 7 figures, in proceeding of the VIII International Workshop On Charm Physics, 5-9 September 2016, Bologna, Italy. arXiv admin note: substantial text overlap with arXiv:1611.00022

References in corpus (4)

• Light hadrons from lattice QCD with light (u,d), strange and charm dynamical quarks
• Measurement of the $D^0\to {\pi }^{-}{e}^{+}{\nu }_e$ differential decay branching fraction as a function of $q^2$ and study of form factor parameterizations
• Vector Formfactors in Hard Pion Chiral Perturbation Theory
• Hypercubic Effects in semileptonic $D\to \pi$ decays on the lattice