Lepton or boson

2

2

2

2

3

Partial fraction

Exponent of factor 2

Even or odd

R, boson

3

2/3

0

KE beta decay, lepton

2

3

5/6

1

odd

Z, W, boson

2

2

3

13/12

2

even

Muon, lepton

2

2

2

3

23/24

3

odd

Gluon of the neutron, boson

2

2

2

2

3

47/48

4

even