Quark | 2013 Experimental data | 2013 Predictions | 2014 Experimental data |
Up (u) | 1.7 - 3.1 × 106 eV/c2 | 2.35 × 106 eV/c2 | 2.3+0.7−0.5 × 106 eV/c2 |
Down (d) | 4.1 - 5.7 × 106 eV/c2 | 4.7 × 106 eV/c2 | 4.8+0.5−0.3 × 106 eV/c2 |
Strange (s) | 100+30−20 × 106 eV/c2 | 106.6 × 106 eV/c2 | 95+5−5 × 106 eV/c2 |
Charm (c) | 1290+50−100 × 106 eV/c2 | 1280 × 106 eV/c2 | 1290+50−110 × 106 eV/c2 |
Bottom (b) | 4190+180−60 × 106 eV/c2 | 4214 × 106 eV/c2 | 4180+30−30 × 106 eV/c2 |
Top (t) | 172.9+1.5−1.5 × 109 eV/c2 | 172.2 × 109 eV/c2 | 173.34±0.27±0.71 × 109 eV/c2 |