Meson

Spin

Composition

Calculated

mass without

binding energy (MeV)

Calculated

mass with

binding energy

(MeV)

Observed

mass (MeV)

%

difference

pion (π^±)

0

2g* ? e as ud̅

139.540

139.570

−0.02

pion (π⁰)

0

(u_pu̅_p + d_pd̅_p)/2

140.562

134.982

134.977

0.004

charged rho meson (ρ⁺)

1

u_vd̅_v

797.11

774.07

775.11

−0.13

omegameson (ω)

1

u_vd̅_v

797.11

785.59

782.65

0.32

eta meson (η)

0

(u_pu̅_p + d_pd̅_p + s_ps̅_p)/2

563.949

548.663

547.862

0.15

eta prime meson (η’)

0

(u_pu̅_p + d_pd̅_p)/2 + s_ps̅_p

987.34

956.76

957.78

−0.11

kaon (K⁺)

0

7(g* + e) as u_ps̅_p

493.754

493.677

0.02

kaon (K⁰)

0

7(g* + 2e) as d_ps̅_p

497.331

497.614

−0.06

kaon (K*⁺)

1

u_vs̅_v

937.7

891.60

891.66

−0.007

phi meson (ϕ)

1

s_vs̅_v

1078.1

1018.9

1019.5

−0.06

D meson (D*⁰)

1

c_vu̅_v

2004.0

2007.0

−0.15

strange D meson ( ${\text{D}}_{\text{s}}^{+}$ )

0

0

e + 20(3g*/2) − 2g*

(c_ps̅_p)

1961.2

(1958.7)

1968.3

−0.36

strange D meson ( ${\text{D}}_{\text{s}}^{\ast +}$ )

1

1

e + 20(3g*/2)

(c_vs̅_v)

2101.3

(2144.4)

2112.1

−0.52

charmed eta meson (η_c)

0

0

2e + 30(3g*/2) ? 2g*

(c_pc̅_p)

3012.1

(3070.6)

2983.6

0.95

J/Psi

1

1

2e + 30 (3g*/2) ? g*

(c_vc̅_v)

3082.1

(3210.6)

3096.9

−0.48

D meson (D⁰)

0

c_pu̅_v ? g*

1863.9

1864.8

−0.05

D meson (D*⁰)

1

c_vu̅_v

2003.8

2010.3

−0.32

B meson ( ${\text{B}}_{\text{d}}^0$ )

0

d_vb̅_p

5303.1

5279.6

0.44

B meson ( ${\text{B}}_{\text{d}}^{\ast 0}$ )

1

d_vb̅_v

5373.1

5325.2

0.89

B meson (B_c)

0

0

e + 60(3g*/2)

(c_pb̅_p)

6302.8

(6440.0)

6275.6

0.41

bottom eta meson (η_b)

0

0

2e + 90(3g*/2) ? g*

(b_pb̅_p)

9384.4

(9809.3)

9398.0

−0.14

upsilon meson (γ)

1

1

2e + 90(3g*/2)

(b_vb̅_v)

9454.4

(9949.4)

9460.3

−0.06

top-bottom quark-antiquark composite

0

b_pb̅_p + (b_pb̅_p + t_pt̅_p)/2

27.9 GeV

28 GeV

−0.3

pseudoscalartop quark-antiquark (absent)

0

t_pt̅_p

26.4 GeV

not observed

t quark

½

t₇ + t₈

175.4 GeV

172.4 GeV

1.71

perturbative Higgs boson (absent)

0

W⁺W⁻Z⁰

252 GeV

not observed

low Higgs bosoniHh

0

W⁺W⁻Z⁰/2

126 GeV

125 GeV

0.79

high Higgs boson

0

3W⁺W⁻Z⁰

756 GeV

750 GeV

0.8