A distorted-wave study of electronic excitation to some low-lying states of CO by electron impact

Lee, M. T.; Machado, A. M.; Fujimoto, M. M.; Machado, L. E.; Brescansin, L. M.

doi:10.1088/0953-4075/29/18/022

Cited by 21 publications

(13 citation statements)

References 37 publications

(67 reference statements)

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“…10 From a theoretical perspective the available studies are perhaps even more restricted. To the best of our knowledge these include the Born-Ochkur-Rudge approximation integral cross sections from Chung and Lin, 11 the R-matrix results from Morgan and Tennyson, 12 the distorted wave study of Lee et al, 13 and the Schwinger multichannel formulation from Sun et al…”

Section: Introductionmentioning

confidence: 99%

Cross sections for electron impact excitation of the vibrationally resolved AΠ1 electronic state of carbon monoxide

Kato¹,

Kawahara²,

Hoshino³

et al. 2007

The Journal of Chemical Physics

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The authors report new differential cross section measurements for electron impact excitation of the AΠ1(v′) states of carbon monoxide. The energy range is 20–200eV. They also reanalyze the AΠ1(v′) manifold cross sections of Middleton et al. [J. Phys. B 26, 1743 (1993)] in order to provide a basis for comparison with our new vibrationally resolved differential cross sections. Excellent agreement is found between the two sets of measurements at all common energies. From 20to200eV the present differential cross sections are extrapolated and integrated, and the corresponding integral excitation cross sections determined. New scaled Born integral cross sections, calculated as a part of the present study, are compared against these experimental integral cross sections, with excellent agreement being found for all the AΠ1(v′=0–7)←XΣg+1(v″=0) transitions. In addition our scaled Born integral cross sections are found to be in excellent agreement between 300 and 1500eV with those derived from the previous experiments of Lassettre and Skerbele [J. Chem. Phys. 54, 1597 (1971)] and of Zhong et al. [Phys. Rev. A 55, 1799 (1997)] and from near threshold to 15eV with those derived from Zobel et al. [J. Phys. B 29, 813 (1996)] and Zetner et al. (J. Phys. B 31, 2395 (1998)].

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Section: Introductionmentioning

confidence: 99%

Cross sections for electron impact excitation of the vibrationally resolved AΠ1 electronic state of carbon monoxide

Kato¹,

Kawahara²,

Hoshino³

et al. 2007

The Journal of Chemical Physics

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“…Also, combined with the distorted-wave approximation, SVIM has been applied to the investigation of electronic excitation in molecules [12][13][14][15][16][17][18] . Besides its capability of treating electron scattering by both neutral and ionic molecular targets, SVIM has very solid theoretical grounds.…”

Section: Introductionmentioning

confidence: 99%

Elastic Cross Sections for Low-Energy e--CH4 Collisions

Machado¹,

Lee²,

Brescansin³

1998

Braz. J. Phys.

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Recently we h a ve extended our codes based on the Schwinger variational iterative method in order to study elastic electron scattering by non-planar molecules with symmetries reducible to the C 2v point group and also to include a correlation-polarization contribution to the electron-molecule interaction potential. In this work we report the rst application of these newly extended codes to the calculation of cross sections for low-energy elastic scattering of electrons by methane. Di erential, integral and momentum-transfer cross sections were calculated in the 0.1 50 eV incident energy range. Comparison of our results with the extensive a vailable data, both experimental and theoretical, reveals the reliability of our method. Particularly, the Ramsauer minimum at around 0.4 eV and the resonance structure at around 8 eV are well reproduced in our calculations.

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“…Recent studies of rotational excitation include H2 (Danby et al 1996), HeH+ and N0+ (Rabadan et al 1998), CO (Randell et al 1996), 0 2 (Mukherjee & Ghosh 1996), H 2 0 (Gianturco et al 1998a), 0 3 (Gianturco et al 1998b), C 0 2 (Gianturco & Stoecklin 1997), and S 0 2 ). Vibrational excitation due to electron collisions has been investigated for H 2 (Lee et al 1996a;Kazanskii 1996;Mazevet et al 1998), HD (Kazanskii 1996), N 2 (Grimm-Bosbach et al 1996;Sweeney & Shyn 1997), OH (Chen & Morgan 1997), CO , and CH 4 (Bundschu et al 1997) while studies of electronic excitation of H 2 (Celiberto et al 1996), CO (Lee et al 1996b;Zubek et al 1997;Zetner et al 1998), CO, C0 2 , and S0 2 (Fomunung et al 1996), N 2 (Gillan et al 1996), NO (Mojarrabi et al 1996), 0 3 (Sweeney & Shyn 1996), H 2 0 (Morgan 1998), H 2 S (Michelin et al 1997), and CH4 and SiH4 (Bettega et al 1998) have been performed.…”

Section: Electron Impact Of Moleculesmentioning

confidence: 99%

Commission 14: Atomic and Molecular Data: (Donnees Atomiques et Moleculaires)

Rostas¹,

Smith²,

Berrington³

et al. 2000

Trans. Int. Astron. Union

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In recognition of its special interdisciplinary character, IAU Commission 14 is linked directly to the Executive Committee. The Commission’s role is to inform the astronomical community of new developments in the diverse fields of research which involve atoms and molecules. Conversely it endeavors to sensitize the research community active in those fields to the specific needs of astronomy, especially concerning basic data and modeling tools. More generally, Commission 14 tries to foster long term relations and collaborations between the two communities and, when necessary, to alert funding authorities to the specific needs of ground and space based astronomy for specific atomic and molecular data. This report is one of the main contributions of Commission 14 to the information of the astronomical community. Several meetings concerned, at least in part, with the need and availability of atomic and molecular data for astrophysics were also sponsored or co-sponsored. In the last triennium, Commission 14 cosponsored IAU Symposium 194 “Astrochemistry: From Molecular Cloud to Planetary Systems” held in Sogwipo (Korea) from Aug. 23 to 27, 1999 and organized by Commission 34. A Joint Discussion: JD1 on “Atomic and Molecular Data for Astrophysics, New Developments, Case Studies and Future Needs” has been planned for the XXIVth IAU General Assembly in Manchester (Aug. 7-19, 2000) and cosponsored by Commissions 15, 16, 29, 34, 36, 40 and 44. Several other Joint Discussions to be held at the Manchester General Assembly are co-sponsored by this commission.

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A distorted-wave study of electronic excitation to some low-lying states of CO by electron impact

Cited by 21 publications

References 37 publications

Cross sections for electron impact excitation of the vibrationally resolved AΠ1 electronic state of carbon monoxide

Cross sections for electron impact excitation of the vibrationally resolved AΠ1 electronic state of carbon monoxide

Elastic Cross Sections for Low-Energy e--CH4 Collisions

Commission 14: Atomic and Molecular Data: (Donnees Atomiques et Moleculaires)

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