Evaluate the ratios between the cross-sections at the same energy of (1) p K 0 0 , (2) p K

Evaluate the ratios between the cross-sections at the same energy of (1) πp → K⁰Σ⁰, (2) π ̅ p → K⁺Σ^-, (3) π⁺ p → K⁺Σ⁺, taking into account the contributions of both iso spin amplitudes A_1/2 and A_3/2.