1
Q
Meson
A
q /q; quark-antiquark pair
2
Q
Baryon
A
q q q; quark quark quark
3
Q
Antibaryon
A
/q /q /q; antiquark antiquark antiquark
4
Q
q /q; quark-antiquark pair
A
Meson
5
Q
q q q; quark quark quark
A
Baryon
6
Q
/q /q /q; antiquark antiquark antiquark
A
Antibaryon
7
Q
π⁺
A
u /d
8
Q
π⁻⁻
A
d /u
9
Q
π⁰
A
u /u or d /d
10
Q
K⁺
A
u /s
11
Q
K⁻
A
s /u
12
Q
K⁰
A
d /s
13
Q
/K⁰
A
s /d
14
Q
proton, p
A
u u d
15
Q
neutron, n
A
u d d
16
Q
antiproton, /p
A
/u /u /d
17
Q
antineutron, /n
A
/u /d /d
18
Q
u /d
A
π⁺
19
Q
d /u
A
π⁻⁻
20
Q
u /u or d /d
A
π⁰
21
Q
u /s
A
K⁺
22
Q
s /u
A
K⁻
23
Q
d /s
A
K⁰
24
Q
s /d
A
/K⁰
25
u u d
proton, p
26
u d d
neutron, n
27
/u /u /d
antiproton, /p
28
/u /d /d
antineutron, /n
Z AS Physics: Unit 1
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