= Delta baryon
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The <Delta baryon> ground multiplet is a short-lived baryon resonance family with <isospin> $3/2$ and spin-parity $3/2^+$. Its four charge states have ordinary valence contents $uuu$, $uud$, $udd$ and $ddd$, with charges $+2,+1,0,-1$ in elementary-charge units.
The familiar <Delta-plus baryon> and the <proton> share valence flavor content but differ in their <spin> coupling and mass. Strong decay into a <nucleon> and a <pion> gives the Delta resonance a broad <decay width>. In scattering, a resonance appears through an energy-dependent amplitude and cross section, not as an indefinitely stable additional constituent of every <atomic nucleus>.<Delta(1232) particle listing by Particle Data Group>[Delta(1232) quantum numbers, isospin multiplet and decay listings]{ref}
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