Template:List of mesons

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Pseudoscalar mesons

Particle name Particle
symbol 		Antiparticle
symbol 		Quark
content 		Rest mass (MeV/c2) IG JPC S C B' Mean lifetime (s) Commonly decays to
(>5% of decays)
Pion[1] Template:Subatomic particle Template:Subatomic particle Template:Subatomic particleTemplate:Subatomic particle Template:Val 1− 0− 0 0 0 Template:Val Template:Subatomic particle + Template:Subatomic particle
Pion[2] Template:Subatomic particle Self <math>\mathrm{\tfrac{u\bar{u} - d\bar{d}}{\sqrt{2}}}\,</math>[a] Template:Val 1− 0−+ 0 0 0 Template:Val Template:Subatomic particle + Template:Subatomic particle
Eta meson[3] Template:Subatomic particle Self <math>\mathrm{\tfrac{u\bar{u} + d\bar{d} - 2s\bar{s{\sqrt{6}}}\,</math>[a]}} Template:Val 0+ 0−+ 0 0 0 Template:Val[b] Template:Subatomic particle + Template:Subatomic particle or
Template:Subatomic particle + Template:Subatomic particle + Template:Subatomic particle or
Template:Subatomic particle + Template:Subatomic particle + Template:Subatomic particle
Eta prime meson[4] Template:Subatomic particle(958) Self <math>\mathrm{\tfrac{u\bar{u} + d\bar{d} + s\bar{s}}{\sqrt{3}}}\,</math>[a] Template:Val 0+ 0−+ 0 0 0 Template:Val[b] Template:Subatomic particle + Template:Subatomic particle + Template:Subatomic particle or
(Template:Subatomic particle + Template:Subatomic particle) / (Template:Subatomic particle + Template:Subatomic particle + Template:Subatomic particle) or
Template:Subatomic particle + Template:Subatomic particle + Template:Subatomic particle
Charmed eta meson[5] Template:Subatomic particle(1S) Self Template:Subatomic particleTemplate:Subatomic particle Template:Val 0+ 0−+ 0 0 0 Template:Val[b] See Template:Subatomic particle decay modes
Bottom eta meson[6] Template:Subatomic particle(1S) Self Template:Subatomic particleTemplate:Subatomic particle Template:Val 0+ 0−+ 0 0 0 Unknown See Template:Subatomic particle decay modes
Kaon[7] Template:Subatomic particle Template:Subatomic particle Template:Subatomic particleTemplate:Subatomic particle Template:Val ​1⁄2 0− 1 0 0 Template:Val Template:Subatomic particle + Template:Subatomic particle or

Template:Subatomic particle + Template:Subatomic particle or
Template:Subatomic particle + Template:Subatomic particle + Template:Subatomic particle or
Template:Subatomic particle + Template:Subatomic particle

Kaon[8] Template:Subatomic particle Template:Subatomic particle Template:Subatomic particleTemplate:Subatomic particle Template:Val ​1⁄2 0− 1 0 0 [c] [c]
K-Short[9] Template:Subatomic particle Self <math>\mathrm{\tfrac{d\bar{s} - s\bar{d}}{\sqrt{2}}}\,</math>[e] Template:Val[d] ​1⁄2 0− (*) 0 0 Template:Val Template:Subatomic particle + Template:Subatomic particle or
Template:Subatomic particle + Template:Subatomic particle
K-Long[10] Template:Subatomic particle Self <math>\mathrm{\tfrac{d\bar{s} + s\bar{d}}{\sqrt{2}}}\,</math>[e] Template:Val[d] ​1⁄2 0− (*) 0 0 Template:Val Template:Subatomic particle + Template:Subatomic particle + Template:Subatomic particle or
Template:Subatomic particle + Template:Subatomic particle + Template:Subatomic particle or
Template:Subatomic particle + Template:Subatomic particle + Template:Subatomic particle or
Template:Subatomic particle + Template:Subatomic particle + Template:Subatomic particle
D meson[11] Template:Subatomic particle Template:Subatomic particle Template:Subatomic particleTemplate:Subatomic particle Template:Val ​1⁄2 0− 0 +1 0 Template:Val See Template:Subatomic particle decay modes
D meson[12] Template:Subatomic particle Template:Subatomic particle Template:Subatomic particleTemplate:Subatomic particle Template:Val ​1⁄2 0− 0 +1 0 Template:Val See Template:Subatomic particle decay modes
strange D meson[13] Template:Subatomic particle Template:Subatomic particle Template:Subatomic particleTemplate:Subatomic particle Template:Val 0 0− +1 +1 0 Template:Val See Template:Subatomic particle decay modes
B meson[14] Template:Subatomic particle Template:Subatomic particle Template:Subatomic particleTemplate:Subatomic particle Template:Val ​1⁄2 0− 0 0 +1 Template:Val See Template:Subatomic particle decay modes
B meson[15] Template:Subatomic particle Template:Subatomic particle Template:Subatomic particleTemplate:Subatomic particle Template:Val ​1⁄2 0− 0 0 +1 Template:Val See Template:Subatomic particle decay modes
Strange B meson[16] Template:Subatomic particle Template:Subatomic particle Template:Subatomic particleTemplate:Subatomic particle Template:Val 0 0− −1 0 +1 Template:Val See Template:Subatomic particle decay modes
Charmed B meson[17] Template:Subatomic particle Template:Subatomic particle Template:Subatomic particleTemplate:Subatomic particle Template:Val 0 0− 0 +1 +1 Template:Val See Template:Subatomic particle decay modes

[a] ^ Makeup inexact due to non-zero quark masses.
[b] ^ PDG reports the resonance width (Γ). Here the conversion τ = ​ħ⁄Γ is given instead.
[c] ^ Strong eigenstate. No definite lifetime (see kaon notes below)
[d] ^ The mass of the Template:Subatomic particle and Template:Subatomic particle are given as that of the Template:Subatomic particle. However, it is known that a difference between the masses of the Template:Subatomic particle and Template:Subatomic particle on the order of Template:Val exists.[10]
[e] ^ Weak eigenstate. Makeup is missing small CP–violating term (see notes on neutral kaons below).

Vector mesons

Particle
name 		Particle
symbol 		Antiparticle
symbol 		Quark
content 		Rest mass (MeV/c2) IG JPC S C B' Mean lifetime (s) Commonly decays to
(>5% of decays)
Charged rho meson[18] Template:Subatomic particle(770) Template:Subatomic particle(770) Template:Subatomic particleTemplate:Subatomic particle Template:Val 1+ 1− 0 0 0 ~Template:Val[f][g] Template:Subatomic particle + Template:Subatomic particle
Neutral rho meson[18] Template:Subatomic particle(770) Self <math>\mathrm{\tfrac{u\bar{u}-d\bar{d{\sqrt 2}}</math>}} Template:Val 1+ 1−− 0 0 0 ~Template:Val[f][g] Template:Subatomic particle + Template:Subatomic particle
Omega meson[19] Template:Subatomic particle(782) Self <math>\mathrm{\tfrac{u\bar{u} + d\bar{d{\sqrt{2}}}</math>}} Template:Val 0− 1−− 0 0 0 Template:Val[f] Template:Subatomic particle + Template:Subatomic particle + Template:Subatomic particle or
Template:Subatomic particle + Template:Subatomic particle
Phi meson[20] Template:Subatomic particle(1020) Self Template:Subatomic particleTemplate:Subatomic particle Template:Val 0− 1−− 0 0 0 Template:Val[f] Template:Subatomic particle + Template:Subatomic particle or
Template:Subatomic particle + Template:Subatomic particle or
(Template:Subatomic particle + Template:Subatomic particle) / (Template:Subatomic particle + Template:Subatomic particle + Template:Subatomic particle)
J/Psi[21] Template:Subatomic particle Self Template:Subatomic particleTemplate:Subatomic particle Template:Val 0− 1−− 0 0 0 Template:Val[f] See Template:Subatomic particle(1S) decay modes
Upsilon meson[22] Template:Subatomic particle(1S) Self Template:Subatomic particleTemplate:Subatomic particle Template:Val 0− 1−− 0 0 0 Template:Val[f] See Template:Subatomic particle(1S) decay modes
Kaon[23] Template:Subatomic particle Template:Subatomic particle Template:Subatomic particleTemplate:Subatomic particle Template:Val ​1⁄2 1− 1 0 0 ~Template:Val[f][g] See Template:Subatomic particle(892) decay modes
Kaon[23] Template:Subatomic particle Template:Subatomic particle Template:Subatomic particleTemplate:Subatomic particle Template:Val ​1⁄2 1− 1 0 0 Template:Val[f] See Template:Subatomic particle(892) decay modes
D meson[24] Template:Subatomic particle(2010) Template:Subatomic particle(2010) Template:Subatomic particleTemplate:Subatomic particle Template:Val ​1⁄2 1− 0 +1 0 Template:Val[f] Template:Subatomic particle + Template:Subatomic particle or
Template:Subatomic particle + Template:Subatomic particle
D meson[25] Template:Subatomic particle(2007) Template:Subatomic particle(2007) Template:Subatomic particleTemplate:Subatomic particle Template:Val ​1⁄2 1− 0 +1 0 >Template:Val[f] Template:Subatomic particle + Template:Subatomic particle or
Template:Subatomic particle + Template:Subatomic particle
strange D meson[26] Template:Subatomic particle Template:Subatomic particle Template:Subatomic particleTemplate:Subatomic particle Template:Val 0 1− +1 +1 0 >Template:Val[f] Template:Subatomic particle + Template:Subatomic particle or
Template:Subatomic particle + Template:Subatomic particle
B meson[27] Template:Subatomic particle Template:Subatomic particle Template:Subatomic particleTemplate:Subatomic particle Template:Val ​1⁄2 1− 0 0 +1 Unknown Template:Subatomic particle + Template:Subatomic particle
B meson[27] Template:Subatomic particle Template:Subatomic particle Template:Subatomic particleTemplate:Subatomic particle Template:Val ​1⁄2 1− 0 0 +1 Unknown Template:Subatomic particle + Template:Subatomic particle
Strange B meson[28] Template:Subatomic particle Template:Subatomic particle Template:Subatomic particleTemplate:Subatomic particle Template:Val 0 1− −1 0 +1 Unknown Template:Subatomic particle+Template:Subatomic particle
Charmed B meson† Template:Subatomic particle Template:Subatomic particle Template:Subatomic particleTemplate:Subatomic particle Unknown 0 1− 0 +1 +1 Unknown Unknown

[f] ^ PDG reports the resonance width (Γ). Here the conversion τ = ​ħ⁄Γ is given instead.
[g] ^ The exact value depends on the method used. See the given reference for detail.

Notes on neutral kaons

There are two complications with neutral kaons:[29]

Note that these issues also exist in principle for other neutral flavored mesons; however, the weak eigenstates are considered separate particles only for kaons because of their dramatically different lifetimes.[29]

References

These references will appear in the article, but this list appears only on this page.
  1. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  2. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  3. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  4. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  5. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  6. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  7. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  8. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  9. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  10. ↑ 10.0 10.1 C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  11. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  12. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  13. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  14. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  15. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  16. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  17. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  18. ↑ 18.0 18.1 C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  19. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle(782)
  20. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  21. ↑ C. Amsler et al. (2008): Particle listings – J/Ψ
  22. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle(1S)
  23. ↑ 23.0 23.1 C. Amsler et al. (2008): Particle listings – Template:Subatomic particle(892)
  24. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle(2010)
  25. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle(2007)
  26. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  27. ↑ 27.0 27.1 C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  28. ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
  29. ↑ 29.0 29.1 J.W. Cronin (1980)
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