The following reaction can occur by the strong interaction: π⁰ + n → K⁺ + Σ⁻. If the quark composition of the n is (udd), the π° is ( ), and the composition of the K⁺ is ( ), find the quark composition of the Σ⁻.

Question

Quizplus · Accepted Answer

In the initial state, the neutron (udd) combines with the neutral pion (uubar - ddbar) to form the final state kaon+ (usbar) and Sigma- (dsbar). By conservation of baryon number, the quark composition of the Sigma- must be dds.

The Following Reaction Can Occur by the Strong Interaction: π0

The Following Reaction Can Occur by the Strong Interaction: π⁰