Quenching of the resonance 5s(3P1) state of the krypton atomin collisions with krypton and argon atoms

The processes of collision quenching of the resonance 5s[3/2]⁰₁ (³P₁) state of the krypton atom are studied by the absorption probe method in electron-beam-excited high-pressure Ar—Kr mixtures with a low content of krypton. The rate constants of plasmochemical reactions Kr* + Kr + Ar → Kr*₂ + Ar [(4.40 ± 0.44) × 10^-33 cm⁶ s^-1], Kr* + 2Ar → ArKr* + Ar [(3.5 ± 0.9) × 10^-36 cm⁶ s^-1], and Kr* + Ar → products + Ar [(3.84 ± 0.38) × 10^-15 cm³ s^-1] are measured for the first time. The rate constants of similar reactions are refined for the metastable 5s[3/2]⁰₂ (³P₂) state.