Full Idea
The current model requires 61 particles: three generations of two leptons and two flavours of quark, in three different colours (making 24); the anti-particles of all of these (48); 12 force particles (photon, W1, Z0, 8 gluons), and a Higgs boson.
Gist of Idea
The current standard model requires 61 particles
Source
Jim Baggott (Farewell to Reality: fairytale physics [2013], 6 n)
Book Reference
Baggott,Jim: 'Farewell to Reality: fairytale physics' [Constable 2013], p.136