2007/05/19 by Ting-Wai Chiu, Tung-Han Hsieh, Tung‐Han Hsieh +2 · 2 citations
Physics and Astronomy · #Bottom quark #Chiral symmetry breaking #High-Energy Particle Collisions Research #Lattice QCD #Lattice constant #Meson #Particle physics #Particle physics theoretical and experimental studies #Physics #Pseudoscalar #QCD vacuum #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Quark #Top quark #hep-ex #hep-lat #hep-ph
paper · pdf · doi:10.1016/j.physletb.2007.06.017
published as Phys.Lett.B651:171-176,2007 · 12 pages
arxiv created 2007/05/19 · openalex publication_date 2007/06/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present the first study of treating b, c, and s quarks as Dirac fermions in lattice QCD with exact chiral symmetry. For 100 gauge configurations generated with single-plaquette action at beta = 7.2 on the 323 x 60 lattice, we compute point-to-point quark propagators for 33 quark masses in the range 0.01 < mq a < 0.85, and measure the time-correlation function of (pseudo-)scalar, (pseudo-)vector, and tensor mesons, for symmetric and asymmetric quark masses respectively. The lowest-lying mass spectra of mesons with quark contents bbbar, cbbar, sbbar, and ccbar are determined, together with the pseudoscalar decay constants. Our results are sumarized in Tables 1-5. Furthermore, we also determine the b and c quark masses in the MSbar scheme, mb = 4.65(5) GeV, and mc = 1.16(4) GeV.