A. S. Chaudhari, Foram Joshi, Manish Pindariya, K. N. Joshipura, P. Bhowmik
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Ionization of P Atom, P\(_2\) and PX (X = H, C, N, O) Molecules by Electron Impact: Theoretical Studies
Being a biogenic element atomic Phosphorus is one of the significant constituents of the universe [1]. Gulick [2] found a pivotal role of phosphorus in the origin of life. The phosphoruscontaining molecules like PH, PC and PN radicals, have been observed in interstellar gas clouds [3–5] and they are proposed to be present under appropriate conditions. Phosphorous hydrides having numerous applications, are detected in cool stellar atmosphere [6] and circumstellar envelopes. Thus, the present paper addresses the electron impact processes of atomic phosphorus and its diatomic compounds. Ground and metastable states of Atomic P give rise to the probability of presence of metastable state in the atomic beam used for cross section measurement [7]. We have employed the well-known Spherical Complex Optical Potential (SCOP) formalism to calculate total inelastic cross sections. The semi-empirical CSP- ic method is used to extract total ionization cross section \(Q_{ion}\) from total inelastic cross section [8]. A variant CSP- ic approach is also attempted for these targets.