Heavy-light mesons in 2+1 flavor lattice QCD

Y. Namekawa

Heavy-light mesons in 2+1 flavor lattice QCD

High Energy Physics - Lattice 2019-08-14 v1

Authors: Y. Namekawa

Abstract

Heavy-light meson system is investigated using the relativistic heavy quark action on the 2+1 dynamical flavor PACS-CS configurations at the lattice spacing $a^{-1}=2.2$ GeV and the spatial extent L=3 fm. Dynamical up-down and strange quark masses as well as the valence charm quark mass are set around their physical values. We measure the charm- $ud$ and charm-strange meson masses and decay constants. Our results are consistent with the experimental values except the hyperfine splitting of the charm-strange meson. We also estimate the CKM matrix elements in the second row.

Keywords

heavy-light mesons lattice QCD relativistic heavy quark action charm quark decay constants CKM matrix elements hyperfine splitting

Cite

@article{arxiv.0911.5362,
  title  = {Heavy-light mesons in 2+1 flavor lattice QCD},
  author = {Y. Namekawa},
  journal= {arXiv preprint arXiv:0911.5362},
  year   = {2019}
}

Comments

7 pages. Talk presented at The XXVII International Symposium on Lattice Field Theory, Peking University, Beijing, China, July 26-31 2009

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