First determination of the strange and light quark masses from full lattice QCD
HPQCD collaboration, MILC collaboration, UKQCD collaboration, C. Aubin, C. Bernard, C. Davies, C. DeTar, Steven Gottlieb, A. Gray, E. Gregory, J. Hein, U. Heller, J. Hetrick, G. Lepage, Q. Mason, J. Osborn, J. Shigemitsu, R. Sugar, D. Toussaint, H. Trottier, M. Wingate
Abstract
We compute the strange quark mass ms and the average of the u and d quark masses m using full lattice QCD with three dynamical quarks combined with experimental values for the pion and kaon masses. The simulations have degenerate u and d quarks with masses mu=md m as low as ms/8, and two different values of the lattice spacing. The bare lattice quark masses obtained are converted to the scheme using perturbation theory at O(alphas). Our results are: ms(2 GeV) = 76(0)(3)(7)(0) MeV, m(2 GeV) = 2.8(0)(1)(3)(0) MeV and ms/ m = 27.4(1)(4)(0)(1), where the errors are from statistics, simulation, perturbation theory, and electromagnetic effects, respectively.
Create a lesson
Related papers
Evidence of Taste-Symmetry restoration for Kähler-Dirac fermions on Euclidean Dynamical Triangulations
Mingwei Dai, Walter Freeman, Mason Grieb et al.
Hamiltonian framework for Chiral Gauge Theories on a Disk Boundary
Srimoyee Sen
Finite-size scaling analysis of three dimensional Z(2) and O(2) spin models with non-vanishing symmetry breaking parameter
Jishnu Goswami, Frithjof Karsch, Sabarnya Mitra
Bjorken sum rule down to the elastic region from the lattice
J. A. Crawford, A. Hannaford-Gunn, R. Horsley et al.
Performance Portable SU(N) Lattice Gauge Theory Simulation with Kokkos
Wei Sun
Sampling SU(N) gauge theory on a 2D lattice from independent plaquettes via holonomies and corner reweighting
Javad Komijani