First determination of the strange and light quark masses from full lattice QCD

Details First determination of the strange and light quark masses from full lattice QCD First determination of the strange and light quark masses from full lattice QCD

2004-05-26

arxiv.org/abs/hep-lat/0405022v3

Phys.Rev.D70:031504,2004

Physics

High Energy Physics

High Energy Physics - Lattice

5 pages, revtex, 2 figures. v2: New ms/hat(m) discussion and reference, v3: slight change in discussion of reference

Scientific paper

10.1103/PhysRevD.70.031504

We compute the strange quark mass $m_s$ and the average of the $u$ and $d$ quark masses $\hat m$ 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 $m_u=m_d\equiv \hat m$ as low as $m_s/8$, and two different values of the lattice spacing. The bare lattice quark masses obtained are converted to the $\msbar$ scheme using perturbation theory at $O(alpha_s)$. Our results are: $m_s^\msbar$(2 GeV) = 76(0)(3)(7)(0) MeV, $\hat m^\msbar$(2 GeV) = 2.8(0)(1)(3)(0) MeV and $m_s/\hat m$ = 27.4(1)(4)(0)(1), where the errors are from statistics, simulation, perturbation theory, and electromagnetic effects, respectively.

Affiliated with

Also associated with

No associations

Rating

First determination of the strange and light quark masses from full lattice QCD does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with First determination of the strange and light quark masses from full lattice QCD, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and First determination of the strange and light quark masses from full lattice QCD will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-78892