Difference between revisions of "Template:List of mesons"
imported>Omnissiahs hierophant m (→Pseudoscalar mesons: the letter "f" is used for footnote in a parent-child cascading template, so switched to "s") |
imported>Omnissiahs hierophant (→Vector mesons: also added footnote "s" to the vector mesons, for explaining their quark composition) |
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| style="text-align:center;" | {{Subatomic particle|link=yes|Rho0}}(770) | | style="text-align:center;" | {{Subatomic particle|link=yes|Rho0}}(770) | ||
| style="text-align:center;" | Self | | style="text-align:center;" | Self | ||
| − | | style="text-align:center;" | <math>\mathrm{\tfrac{u\bar{u}-d\bar{d}}{\sqrt 2}} | + | | style="text-align:center;" | {{nowrap|<math>\mathrm{\tfrac{u\bar{u}-d\bar{d}}{\sqrt 2}}</math><sup>{{ref|superposition|[s]}}</sup>}} |
| style="text-align:center;" | {{sort|0775.49|{{val|775.49|0.34}}}} | | style="text-align:center;" | {{sort|0775.49|{{val|775.49|0.34}}}} | ||
| style="text-align:center;" | 1<sup>+</sup> | | style="text-align:center;" | 1<sup>+</sup> | ||
| Line 307: | Line 307: | ||
| style="text-align:center;" | {{Subatomic particle|link=yes|omega meson}}(782) | | style="text-align:center;" | {{Subatomic particle|link=yes|omega meson}}(782) | ||
| style="text-align:center;" | Self | | style="text-align:center;" | Self | ||
| − | | style="text-align:center;" | <math>\mathrm{\tfrac{u\bar{u} + d\bar{d}}{\sqrt{2}}} | + | | style="text-align:center;" | {{nowrap|<math>\mathrm{\tfrac{u\bar{u} + d\bar{d}}{\sqrt{2}}}</math><sup>{{ref|superposition|[s]}}</sup>}} |
| style="text-align:center;" | {{val|782.65|0.12}} | | style="text-align:center;" | {{val|782.65|0.12}} | ||
| style="text-align:center;" | 0<sup>−</sup> | | style="text-align:center;" | 0<sup>−</sup> | ||
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|- | |- | ||
|} | |} | ||
| − | <sup>[f]</sup> {{note|Lifetime2}} PDG reports the [[resonance width]] (Γ). Here the conversion τ = {{frac|ħ|Γ}} is given instead. | + | <sup>[f]</sup> {{note|Lifetime2}} PDG reports the [[resonance width]] (Γ). Here the conversion τ = {{frac|ħ|Γ}} is given instead. |
| + | |||
<sup>[g]</sup> {{note|Lifetime3}} The exact value depends on the method used. See the given reference for detail. | <sup>[g]</sup> {{note|Lifetime3}} The exact value depends on the method used. See the given reference for detail. | ||
| + | |||
| + | <sup>[s]</sup> {{note|superposition}}The particles quark composition is in a [[Quantum superposition|superposition]]. The formula given is for the [[probability amplitude]]. | ||
===Notes on neutral kaons=== | ===Notes on neutral kaons=== | ||
Revision as of 11:28, 22 August 2020
Pseudoscalar mesons
[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).
[s] ^ The particles quark composition is in a superposition. The formula given is for the probability amplitude.
Vector mesons
[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.
[s] ^ The particles quark composition is in a superposition. The formula given is for the probability amplitude.
Notes on neutral kaons
There are two complications with neutral kaons:[29]
- Due to neutral kaon mixing, the Template:Subatomic particle and Template:Subatomic particle are not eigenstates of strangeness. However, they are eigenstates of the weak force, which determines how they decay, so these are the particles with definite lifetime.
- The linear combinations given in the table for the Template:Subatomic particle and Template:Subatomic particle are not exactly correct, since there is a small correction due to CP violation. See CP violation in kaons.
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
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ 10.0 10.1 C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ 18.0 18.1 C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle(782)
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ C. Amsler et al. (2008): Particle listings – J/Ψ
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle(1S)
- ↑ 23.0 23.1 C. Amsler et al. (2008): Particle listings – Template:Subatomic particle(892)
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle(2010)
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle(2007)
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ 27.0 27.1 C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ C. Amsler et al. (2008): Particle listings – Template:Subatomic particle
- ↑ 29.0 29.1 J.W. Cronin (1980)