Transport collision integrals for C(5S)-H(2S), C(1S)-H(2S), C(1D)-H(2S), and C(3P)-H(2S) interactions

Abstract

Transport collision integrals of interacting atoms or ions are essential in modeling transport properties of high-temperature gases and plasmas. Here, we obtained the potential energy curves (PECs) of CH using the state-of-the-art ab initio methods. The PECs were also extrapolated to investigate the transport collision integrals for C(3P)-H(2S), C(5S)-H(2S), C(1S)-H(2S), and C(1D)-H(2S) interactions, in which the interactions between the excited C(5S), C(1S), and C(1D) atoms and the ground H(2S) atoms were calculated for the first time. The resulting transport collision integrals were fitted to simple functional forms for ease of use in plasma modeling. Our transport collision integrals can provide data references for computing transport properties of high-temperature plasmas involving C and H atoms.