Energy transfer from the resonance states Ar(1P1) and Ar(3P1) to ethylene

Abstract

A study has been made of the quenching of the ¹P₁ and ³P₁ resonance states of the argon atom by ethylene using a resonance fluorescence technique. Excited atoms were created by a pulsed beam of 2‐MeV protons. The measured values of the rate constants are 10.3×10⁻¹⁰ and 5.6×10⁻¹⁰ cm³ molecule⁻¹ · sec⁻¹ for the ¹P₁ and ³P₁ states, respectively. These compare with the calculated values of 10.3×10⁻¹⁰ and 5.4×10⁻¹⁰ cm³ molecule⁻¹ · sec⁻¹ for the respective states using the theory of Watanabe and Katsuura.