PARTICLES
SPIN
h
CHARGES
ISOTOPIC
SPIN
STRANGE
NESS
S
PRINCIPAL
DECAY
MODE
Q
L
B
T
7',
1
0
0
0
1/2
0
+1
0
1/2
-1
+1
0
1/2
-1
+1
0
1.1. ---.e-4-v,+:4e
0
+1
0
0
1
+1
o
ni—R++,9,
o
0
0
0
1
0
0
no_.2.t.
o
+1
0
0
1/2
+1/2
+1
KL. p.4+ v ,
0
0
0
0
14
-1 /2
+1
K --.
0 2n, n ev
0
0
0
0
0
0
0
1-.2y, 3n
1/2
+1
0
+1
1/2
+1/2
0
1/2
0
0
+1
1 /2
-1 /2
0
n -..p + e=1- 5 e
1/2
0
0
+1
0
0
-1
A O
it -../3 +n1/2
+1
0
+1
1
+1
-1
it- N + n
1/2
- 1
0
+1
1
- 1
-1
i.--wn + n1/2
0
0
+1
1
0
—1
ILA0 + ),
1/2
—I
0
+1
1/2
_1/2
-2
ti=./1°+n1/2
0
0
+1
1 /2
+1/2
-2.
el,.A0+ no
3/2
-1
0
+1
0
0
-3
51-.2+n, AN ff -
Note. Particles and corresponding antiparticles have the identical values of mass, mean life,
spin, and isotopic spin T, while their electric Q, lepton L, and baryon B charges, projections
of isotopic spin Tz , and strangeness S, have the values that are opposite in sign.