Phys. Rev. Lett. 104, 132003 (2010): Precise Charm to Strange Mass Ratio and Light Quark Masses from Full Lattice QCD
"Phys. Rev. Lett. 104, 132003 (2010) [4 pages]
Precise Charm to Strange Mass Ratio and Light Quark Masses from Full Lattice QCD"
http://prl.aps.org/abstract/PRL/v104/i13/e132003
Elusive masses of up, down and strange quarks pinned down
According to their results, the up quark weighs approximately 2 mega electron volts (MeV), which is a unit of energy, the down quark weighs approximately 4.8 MeV, and the strange quark weighs in at about 92 MeV.
http://www.sciencedaily.com/releases/2010/05/100503162349.htm
Masses of quarks revealed: Cornell Chronicle
"According to their results, the up quark weighs approximately 2 mega electron volts (MeV), which is a unit of energy, the down quark weighs approximately 4.8 MeV, and the strange quark weighs in at about 92 MeV. "
http://www.news.cornell.edu/stories/May10/LepageQuark.html
published online (March 31) and in print in Physical Review Letters (Vol. 104:13).

Mass of the Common Quark Finally Nailed Down - ScienceNOW
http://news.sciencemag.org/sciencenow/2010/04/mass-of-the-common-quark-finally.html
HPQCD Collaboration Homepage
http://www.physics.gla.ac.uk/HPQCD/