12 matter particles suffice in nature: Limited number of fermions in standard model, physicists say
Thursday, December 13, 2012 - 10:30
in Physics & Chemistry
How many matter particles exist in nature? Particle physicists have been dealing with this question for a long time. The 12 matter particles contained in the standard model of particle physics? Or are there further particles with too high a mass to be produced by the experiments performed so far? These questions are now answered by a team of researchers in a new paper.