Symbol
Anti-particle
Quarks
Spin
Mass (MeV/c2)
Mean lifetime (s)
Nb of Attraction Quanta
Pion
π+
π–
0
139.6
2.60 × 10−8
1
π–
π+
0
139.6
2.60 × 10−8
−1
π0
Self
0
135
0.83 × 10−16
0
Kaon
K+
K–
0
493.7
1.24 × 10−8
3
K–
K+
0
493.7
1.24 × 10−8
−3
K0
0
497.7
2
0
497.7
0.89 × 10−10
0
0
497.7
5.2 × 10−8
0
Êta
η0
Self
0
548.8
5.0 × 10−19
0
η'
Self
0
957.8
3.39 × 10−21
0
ηc
Self
0
2980.3
2.30 × 10−23
0
ηb
Self
0
9390.9
0
Rho
ρ+
ρ–
1
770
0.4 × 10−23
1
ρ–
ρ+
1
770
0.4 × 10−23
−1
ρ0
Self
1
770
0.4 × 10−23
0
Phi
φ
Self
1
1020
20 × 10−23
0
D
D+
D–
0
1869.4
10.6 × 10−13
−1
D–
D+
0
1869.4
10.6 × 10−13
−1
D0
0
1864.6
4.2 × 10−13
−2
D0
0
1864.6
4.2 × 10−13
−2
0
1969
4.7 × 10−13
1
0
1969
4.7 × 10−13
−1
J/Ψ
J/ψ
Self
1
3096.9
7.2 × 10−21
0
B
B+
B–
0
5279
1.5 × 10−12
7
B–
B+
0
5279
1.5 × 10−12
−7
B0
B0
0
5279
1.5 × 10−12
6
Self
0
5366.3
1.47 × 10−12
4
B-c
0
6276 ± 4
4.6 × 10−13
5
Upsilon
ϒ
Self
1
9460.4
1.3 × 10−20
0
Omega
ω
Self
0
782.65
7.75 × 10−23
0