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👉 Eta meson in the context of Rho meson

In particle physics, a rho meson is a short-lived hadronic particle that is an isospin triplet whose three states are denoted as ρ
, ρ
and ρ
. Along with pions and omega mesons, the rho meson carries the nuclear force within the atomic nucleus. After the octet consisting of the pions, kaons, and eta meson, the rho mesons are the lightest strongly interacting particle, with a mass of about 775 MeV for all three states.

The rho mesons have a very short lifetime and their decay width is about 145 MeV; because that is large compared with the mass, the resonance width measurably deviates from a Breit–Wigner form. The principal decay route of the rho mesons is to a pair of pions with a branching rate of 99.9% (however, all neutral pions is forbidden).

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Eta meson in the context of Pseudoscalar meson

In high-energy physics, a pseudoscalar meson is a meson with total spin 0 and odd parity (usually notated as $J$ = 0 ).Pseudoscalar mesons are commonly seen in proton–proton scattering and proton–antiproton annihilation, and include the pion ( $π$ ), kaon ( $K$ ), eta ( $η$ ), and eta prime ( $η'$ ) particles, whose masses are known with great precision.

Among all of the mesons known to exist, in some sense, the pseudoscalars are the most well studied and understood.

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Eta meson in the context of "Rho meson"

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👉 Eta meson in the context of Rho meson

Eta meson in the context of Pseudoscalar meson