Mathematical Principles of Theoretical Physics

5.1. BASIC KNOWLEDGE OF PARTICLE PHYSICS 263

• Quark decays:

(5.1.12)

d→u+e−+νe,

s→u+e−+νe,

s→d+γ,

c→d+s+u.

• Mediator decays:

(5.1.13)

W+→e++νe, μ++νμ, τ++ντ,

W−→e−+νe, μ−+νμ, τ−+ντ,

Z→e++e−, μ++μ−, τ++τ−.

• Baryon decays:

(5.1.14)

n→p+e−+νe,

Λ→p+π−, n+π^0 ,

Σ+→p+π^0 , n+π+,

Σ−→n+π−,

Σ^0 →Λ+γ,

Ξ−→Λ+π−,

∆++→p+π+,

∆+→p+π^0 ,

∆−→n+π−,

∆^0 →n+π^0 ,

Σ∗±→Σ±+π^0 ,

Σ∗^0 →Σ^0 +π^0 ,

Ξ∗−→Ξ−+π^0 ,

Ξ∗^0 →Ξ^0 +π^0.