𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Quark masses with full QCD simulations

✍ Scribed by S Güsken; N Eicker; U Glässner; H Hoeber; P Lacock; G Ritzenhöfer; K Schilling; G Siegert; A Spitz; P Ueberholz; J Viehoff

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
225 KB
Volume
629
Category
Article
ISSN
0375-9474

No coin nor oath required. For personal study only.

✦ Synopsis

We calculate the masses of light and strange quarks using a high statistics lattice simulation of QCD with n] = 2 dynamical Wilson fermions. The simulation has been carried out at three different values of the sea quark mass. For each sea quark we have analyzed our data at five different values of the valence quark mass• This enables us to parameterize our results successfully in the {m q ~q ~ plane, using a linear ansatz

\ sea, ~valenee] light

according to first order chiral perturbation theory (CPBT). We find m~ (2GeV) = 2.7(2)MeV, which is lower than the result found in quenched simulations. For the strange

• strange quark, in a sea of two dynamical light quarks, we obtain m~ (2GeV) = 140(20)MeV.

📜 SIMILAR VOLUMES

Improved Wilson QCD simulations at light
Improved Wilson QCD simulations at light quark masses
✍ A.C. Irving 📂 Article 📅 2003 🏛 Elsevier Science 🌐 English ⚖ 93 KB

We present preliminary results from UKQCD simulations at light quark masses using two flavours of nonpertubatively improved Wilson fermions. We report on the performance of the standard HMC algorithm at these quark masses where m,/m, < 0.5 in comparison with simulations using improved staggered quar

Light quark masses in QCD
Light quark masses in QCD
✍ Johan Bijnens; Joaquím Prades; Eduardo de Rafael 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 900 KB
Free energies of heavy quarks in full-QC
Free energies of heavy quarks in full-QCD lattice simulations with Wilson-type quark action
✍ Y. Maezawa; S. Aoki; S. Ejiri; T. Hatsuda; N. Ishii; K. Kanaya; H. Ohno; T. Umed 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 223 KB

The free energy between a static quark and an antiquark is studied by using the color-singlet Polyakov-line correlation at finite temperature in lattice QCD with 2+1 flavors of improved Wilson quarks. From the simulations on 32 3 × 12, 10, 8, 6, 4 lattices in the high temperature phase, based on the

Twisted-mass lattice QCD with mass non-d
Twisted-mass lattice QCD with mass non-degenerate quarks
✍ R. Frezzotti; G.C. Rossi 📂 Article 📅 2004 🏛 Elsevier Science 🌐 English ⚖ 847 KB

The maximally twisted lattice QCD action of an SUf(2) doublet of mass degenerate Wilson quarks gives raise to a real positive fermion determinant and it is invariant under the product of standard parity times the change of sign of the coefficient of the Wilson term. The existence of this spurionic s