Meson

Composing quarks

I

I3

S

C

B

Mass (MeV)

D +

c d ¯

1 2

1 2

0

1

0

2010.26

D

c ¯ d

1 2

1 2

0

−1

0

2010.26

D 0

c u ¯

1 2

1 2

0

1

0

2006.96

D 0 ¯

c ¯ u

1 2

1 2

0

−1

0

2006.96

D s +

c s ¯

0

0

1

1

0

2112.10

D s ¯

c ¯ s

0

0

−1

−1

0

2112.10

B +

u b ¯

1 2

1 2

0

0

1

5325.20

B

u ¯ b

1 2

1 2

0

0

−1

5325.20

B 0

d b ¯

1 2

1 2

0

0

1

5325.20

B 0 ¯

d ¯ b

1 2

1 2

0

0

−1

5325.20

B s 0

s b ¯

0

0

−1

0

1

5415.40

B s 0 ¯

s ¯ b

0

0

1

0

−1

5415.40