Phi meson

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Not to be confused with the Φ−−, formerly thought to be a pentaquark.
phi meson
Composition ϕ0: ss
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.

Overview[edit]

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 ss 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[edit]

  1. ^ C. Amsler et al. (2008): Particle listings – ϕ

See also[edit]