Phi meson
Not to be confused with the Φ−−, formerly thought to be a pentaquark.
| Composition |
ϕ0 : s s |
|---|---|
| Statistics | Bosonic |
| Interactions | Strong, Weak |
| Symbol |
ϕ , ϕ0 |
| Antiparticle | Self |
| Mass | 1019.445±0.020 MeV/c2 |
| Electric charge | 0 |
In particle physics, the phi meson is a vector meson formed of a strange quark and a strange antiquark. It has a mass of 1019.445±0.020 MeV/c2.
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Phi meson[1] | ϕ (1020) |
Self | s s |
1,019.445 ± 0.020 | 0− | 1−− | 0 | 0 | 0 | 1.55 ± 0.01 × 10−22[f] | K+ + K− or K0 S + K0 L or ( ρ + π ) / ( π+ + π0 + π− ) |
References
- ↑ C. Amsler et al. (2008): Particle listings –
ϕ
See also
| Elementary |
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