Charmed-Meson Decay Constants in Three-Flavor Lattice QCD

2005/06/30 by Christopher Aubin, C. Aubin, C. Bérnard +27 · 11 citations
Chemistry · Physics and Astronomy · #B meson #Chemistry #Flavor #High-Energy Particle Collisions Research #Lattice (music) #Lattice QCD #Lattice constant #Lattice field theory #Meson #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #hep-lat #hep-ph

paper · pdf · doi:10.1103/physrevlett.95.122002

published as Phys.Rev.Lett.95:122002,2005 · note added on recent CLEO measurement; PRL version

arxiv created 2005/09/08 · openalex publication_date 2005/09/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We present the first lattice QCD calculation with realistic sea quark content of the D⁺-meson decay constant f_D⁺. We use the MILC Collaboration's publicly available ensembles of lattice gauge fields, which have a quark sea with two flavors (up and down) much lighter than a third (strange). We obtain f_D⁺=201\ifmmode±\else\textpm\fi3\ifmmode±\else\textpm\fi17 MeV, where the errors are statistical and a combination of systematic errors. We also obtain f_D_s=249\ifmmode±\else\textpm\fi3\ifmmode±\else\textpm\fi16 MeV for the D_s meson.

Citations

• Semileptonic D→π/K and B→π/D decays in 2+1 flavor lattice QCD
• Heavy meson chiral perturbation theory in finite volume
• Application of heavy-quark effective theory to lattice QCD: Power corrections
• Semileptonic Decays ofDMesons in Three-Flavor Lattice QCD
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)

Cited by

• Taste non-Goldstone, flavor-charged pseudo-Goldstone boson masses in staggered chiral perturbation theory
• Observation of DecaysB0→Ds(*)+π−andB0→Ds(*)−K+
• Measurement of branching fractions andCP-violating charge asymmetries forB-meson decays toD(*)D¯(*), and implications for the Cabibbo-Kobayashi-Maskawa angleγ
• Staggered chiral perturbation theory for heavy-light mesons
• CKM Physics from Lattice QCD
• Littlest Higgs model with T-parity confronting the new data on D0–D¯0 mixing
• Staggered baryon operators with flavorSU(3)quantum numbers
• B, D and K decays
• Measurement of the Decay ConstantfDs+UsingDs+→l+ν
• Measurement ofB(Ds+→l+ν)and the decay constantfDS+
• Highly improved staggered quarks on the lattice with applications to charm physics