@article {8065,
	title = {Ionisation of phosphorus, arsenic, antimony, and bismuth by electron impact},
	journal = {The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics},
	volume = {47},
	number = {3},
	year = {2008},
	note = {<p>JPS-Ref35</p>
},
	pages = {339-350},
	abstract = {<p>Abstract.\&amp;nbsp;\&amp;nbsp;Total ionization cross sections of neutral phosphorus, arsenic, antimony, and bismuth atoms by electron impact are reported and compared to the only available experimental results by Freund et\&amp;nbsp;al. [Phys. Rev. A 41, 3575 (1990)]. These calculations take into account the possibilities that some target atoms used in the experiments were in metastable states close to the ground state, the excitation-autoionization of nsnp4 excited states may be substantial, and the ions produced in experiments may be in excited, low-lying metastable states. The cross sections for direct ionization calculations are based on the BEB model by Kim and Rudd [Phys. Rev. A 50, 3954 (1994)]. Plane-wave Born cross sections scaled by the method developed by Kim [Phys. Rev. A 64, 3954 032713 (2001)] are used to determine the contributions from excitation-autoionization. The combination of the BEB model and the scaled Born cross sections is in agreement with the experimental data by Freund et\&amp;nbsp;al. These theoretical data are useful to experimentalists and can be used to complete data tables needed for plasma or astrophysical studies.</p>
},
	url = {http://www.springerlink.com/content/c83871050n3g0w53/},
	author = {J P Santos and F. Parente}
}
