7 julio 2015
Quarks and antiquarks are the teeny, tiny building blocks with which all matter is built, binding together to form protons and neutrons in a process explained by quantum chromodynamics (QCD). Scientists are now researching the energy spectrum of exotic meson resonances.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WOj6A_3Mw34/150707134635.htm
