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. Author manuscript; available in PMC: 2013 Nov 4.

Published in final edited form as: J Chem Phys. 2010 Oct 21;133(15):155104. doi: 10.1063/1.3505301

Fig. 3 — Fig. 3(a) and (b). Electron impact energy dependences of the cross sections to excite and ionize various electronic states of cytosine. The values of the cross sections resulting from fitting with multiple Gaussian functions are listed in Table II. The shaded rectangles in (a) represent the energy ranges of the core-excited electron resonances that have been observed in anion fragment yields in DEA experiments with cytosine in the gas phase (Ref. 14). Open triangle in the bottom of (b) is the total ionization cross section calculated by Mozejko and Sanche (Ref. 67).

Fig. 3 — Fig. 3(a) and (b). Electron impact energy dependences of the cross sections to excite and ionize various electronic states of cytosine. The values of the cross sections resulting from fitting with multiple Gaussian functions are listed in Table II. The shaded rectangles in (a) represent the energy ranges of the core-excited electron resonances that have been observed in anion fragment yields in DEA experiments with cytosine in the gas phase (Ref. 14). Open triangle in the bottom of (b) is the total ionization cross section calculated by Mozejko and Sanche (Ref. 67).