268 CHAPTER 5. ELEMENTARY PARTICLES
Table 5.5: Mesons
Mesons J m Qe Qw Qs B I I 3 S Y τ
π^00135062010008. 4 × 10 −^17
π+ 0 139.6 1 6 2 0 1 1 0 0 2. 6 × 10 −^8
π− 0 139.6 -1 6 2 0 1 -1 0 0 2. 6 × 10 −^8
K+ 0 493.7 1 6 2 0 1 / 2 1 / 2 1 1 1. 2 × 10 −^8
K− 0 493.7 -1 6 2 0 1 / 2 − 1 / 2 1 1 1. 2 × 10 −^8
K^00 497.7 0 6 2 0 1 / 2 − 1 / 2 1 1 5. 1 × 10 −^8
η 0 547.5 0 6 2 0 0 0 0 0 5. 1 × 10 −^19
η′ 0 957.8 0 6 2 0 0 0 0 0 3. 2 × 10 −^21
D^00 1864.5 0 6 2 0 1 / 2 − 1 / 2 0 0 4. 1 × 10 −^13
D+ 0 1869.3 1 6 2 0 1 / 2 1 / 2 0 0 10 −^12
D− 0 1869.3 -1 6 2 0 1 / 2 − 1 / 2 0 0 10 −^12
B+ 0 5279 1 6 2 0 1 / 2 1 / 2 0 0 1. 6 × 10 −^12
B− 0 5279 -1 6 2 0 1 / 2 − 1 / 2 0 0 1. 6 × 10 −^12
B^00 5279.4 0 6 2 0 1 / 2 − 1 / 2 0 0 1. 5 × 10 −^12
ρ+ 1 775.5 1 6 2 0 1 1 0 0 4 × 10 −^24
ρ− 1 775.5 -1 6 2 0 1 -1 0 0 4 × 10 −^24
ρ^01 775.5 0 6 2 0 1 0 0 0 4 × 10 −^24
K∗+ 1 894 1 6 2 0 1 / 2 1 / 2 1 1 10 −^23
K∗− 1 894 -1 6 2 0 1 / 2 − 1 / 2 1 1 10 −^23
K∗^0189406201 / 2 − 1 / 2 1 1 10 −^23
ω 1 782.6 0 6 2 0 0 0 0 0 8 × 10 −^23
ψ 1 3097 0 6 2 0 0 0 0 0 7 × 10 −^21
D∗+ 1 2008 1 6 2 0 1 / 2 1 / 2 0 0 3 × 10 −^21
D∗− 1 2008 -1 6 2 0 1 / 2 − 1 / 2 0 0 3 × 10 −^21
D∗^01200806201 / 2 − 1 / 2 0 0 3 × 10 −^21
