Difference between revisions of "Template:List of mesons"
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| style="text-align:center;" | [http://pdg.lbl.gov/2008/listings/s091.pdf See {{Subatomic particle|Charmed B+}} decay modes] | | style="text-align:center;" | [http://pdg.lbl.gov/2008/listings/s091.pdf See {{Subatomic particle|Charmed B+}} decay modes] | ||
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| − | <sup>[a]</sup> {{note|quarkcontent}} Makeup inexact due to non-zero quark masses. | + | <sup>[a]</sup> {{note|quarkcontent}} Makeup inexact due to non-zero quark masses.<br> |
| − | + | <sup>[b]</sup> {{note|Lifetime}} PDG reports the [[resonance width]] (Γ). Here the conversion τ = {{frac|ħ|Γ}} is given instead.<br> | |
| − | <sup>[b]</sup> {{note|Lifetime}} PDG reports the [[resonance width]] (Γ). Here the conversion τ = {{frac|ħ|Γ}} is given instead. | + | <sup>[c]</sup> {{note|strongforce}}[[Strong force|Strong]] [[eigenstate]]. No definite lifetime (see [[List of mesons#Notes on neutral kaons|kaon notes]] below)<br> |
| − | + | <sup>[d]</sup> {{note|Kaonmass}} The mass of the {{Subatomic particle|K-long0}} and {{Subatomic particle|K-short0}} are given as that of the {{Subatomic particle|Kaon0}}. However, it is known that a difference between the masses of the {{Subatomic particle|K-long0}} and {{Subatomic particle|K-short0}} on the order of {{val|2.2|e=-11|u=MeV/c2}} exists.<ref name=PDGK-long/><br> | |
| − | <sup>[c]</sup> {{note|strongforce}}[[Strong force|Strong]] [[eigenstate]]. No definite lifetime (see [[List of mesons#Notes on neutral kaons|kaon notes]] below) | ||
| − | |||
| − | <sup>[d]</sup> {{note|Kaonmass}} The mass of the {{Subatomic particle|K-long0}} and {{Subatomic particle|K-short0}} are given as that of the {{Subatomic particle|Kaon0}}. However, it is known that a difference between the masses of the {{Subatomic particle|K-long0}} and {{Subatomic particle|K-short0}} on the order of {{val|2.2|e=-11|u=MeV/c2}} exists.<ref name=PDGK-long/> | ||
| − | |||
<sup>[e]</sup> {{note|Kaon}}[[Weak force|Weak]] [[eigenstate]]. Makeup is missing small [[CP violation|CP–violating]] term (see [[List of mesons#Notes on neutral kaons|notes on neutral kaons]] below). | <sup>[e]</sup> {{note|Kaon}}[[Weak force|Weak]] [[eigenstate]]. Makeup is missing small [[CP violation|CP–violating]] term (see [[List of mesons#Notes on neutral kaons|notes on neutral kaons]] below). | ||
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| − | |||
===Vector mesons=== | ===Vector mesons=== | ||
Revision as of 15:15, 23 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).
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.
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)