We review two lattice calculations involving charm hadrons: a determination of the vector and scalar form factors of the semileptonic D→πℓν decays, which are relevant for the extraction of the CKM matrix element ∣Vcd∣ 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 Nf=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.
@article{arxiv.1702.00310,
title = {Charm hadrons and lattice QCD},
author = {Lorenzo Riggio and Giorgio Salerno},
journal= {arXiv preprint arXiv:1702.00310},
year = {2017}
}
Comments
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