title: Integral elastic, electronic-state, ionization, and total cross sections for electron scattering with furfural.
abstract: We report absolute experimental integral cross sections (ICSs) for electron impact excitation of bands of electronic-states in furfural, for incident electron energies in the range 20-250 eV. Wherever possible, those results are compared to corresponding excitation cross sections in the structurally similar species furan, as previously reported by da Costa et al. [Phys. Rev. A 85, 062706 (2012)] and Regeta and Allan [Phys. Rev. A 91, 012707 (2015)]. Generally, very good agreement is found. In addition, ICSs calculated with our independent atom model (IAM) with screening corrected additivity rule (SCAR) formalism, extended to account for interference (I) terms that arise due to the multi-centre nature of the scattering problem, are also reported. The sum of those ICSs gives the IAM-SCAR+I total cross section for electron-furfural scattering. Where possible, those calculated IAM-SCAR+I ICS results are compared against corresponding results from the present measurements with an acceptable level of accord being obtained. Similarly, but only for the band I and band II excited electronic states, we also present results from our Schwinger multichannel method with pseudopotentials calculations. Those results are found to be in good qualitative accord with the present experimental ICSs. Finally, with a view to assembling a complete cross section data base for furfural, some binary-encounter-Bethe-level total ionization cross sections for this collision system are presented.
authors.affiliation: School of Chemical and Physical Sciences, Flinders University, GPO Box 2100, Adelaide, South Australia 5001, Australia.
authors.forename: D B
authors.initials: DB
authors.lastname: Jones
authors.affiliation: Instituto de Física "Gleb Wataghin," Universidade Estadual de Campinas, Campinas, 13083-859 São Paulo, Brazil.
authors.forename: R F
authors.initials: RF
authors.lastname: da Costa
authors.affiliation: Instituto de Física, Universidade de São Paulo, CP 66318, 05315-970 São Paulo, Brazil.
authors.forename: M T do N
authors.initials: MT
authors.lastname: Varella
authors.affiliation: Departamento de Física, Universidade Federal do Paraná, CP 19044, 81531-990 Curitiba, Paraná, Brazil.
authors.forename: M H F
authors.initials: MH
authors.lastname: Bettega
authors.affiliation: Instituto de Física "Gleb Wataghin," Universidade Estadual de Campinas, Campinas, 13083-859 São Paulo, Brazil.
authors.forename: M A P
authors.initials: MA
authors.lastname: Lima
authors.affiliation: Departamento de Física Atómica, Molecular y Nuclear, Universidad Complutense de Madrid, Madrid E-28040, Spain.
authors.forename: F
authors.initials: F
authors.lastname: Blanco
authors.affiliation: Instituto de Física Fundamental, CSIC, Serrano 113-bis, 28006 Madrid, Spain.
authors.forename: G
authors.initials: G
authors.lastname: García
authors.affiliation: School of Chemical and Physical Sciences, Flinders University, GPO Box 2100, Adelaide, South Australia 5001, Australia.
authors.forename: M J
authors.initials: MJ
authors.lastname: Brunger