title: Collision integrals for interactions involving atoms in electronically excited states.
abstract: Transport collision integrals for low-lying excited states of nitrogen atoms and ions are derived in the framework of a phenomenological approach following, where possible, also the traditional multipotential procedure. The two sets of results are compared considering critically the observed deviations, and finally, the proposed model is validated by comparison with oxygen atom-atom interactions. In addition, an attempt is made to extend the proposed phenomenological method to interactions involving high-lying excited states, taking into account the symmetric interaction of two excited hydrogen atoms, characterized by increasing principal quantum number.
authors.affiliation: CNR Institute of Inorganic Methodologies and Plasma, Bari, Italy. annarita.laricchiuta@ba.imip.cnr.it
authors.forename: Annarita
authors.initials: A
authors.lastname: Laricchiuta
authors.forename: Fernando
authors.initials: F
authors.lastname: Pirani
authors.forename: Gianpiero
authors.initials: G
authors.lastname: Colonna
authors.forename: Domenico
authors.initials: D
authors.lastname: Bruno
authors.forename: Claudine
authors.initials: C
authors.lastname: Gorse
authors.forename: Roberto
authors.initials: R
authors.lastname: Celiberto
authors.forename: Mario
authors.initials: M
authors.lastname: Capitelli