Low-energy electron scattering from C_4H_9OH isomers
- Creators
- Bettega, M. H. F.
- Winstead, C.
- McKoy, V.
Abstract
We present differential, integral, and momentum-transfer cross sections for elastic scattering of low-energy electrons by three butanol isomers, isobutanol, t-butanol, and 2-butanol. Our results were calculated with the Schwinger multichannel method in the static-exchange plus polarization approximation for collision energies from 1 to 50 eV. The present results are compared with previous calculations and measurements for the remaining C_4H_9OH isomer, n-butanol [Khakoo et al., Phys. Rev. A 78, 062714 (2008)]. Distinctive behavior is observed in the differential cross sections at collision energies between 5 and 10 eV. In particular, whereas n-butanol exhibits an f-wave scattering pattern, the other isomers exhibit d-wave behavior. A similar pattern is found in the related alkanes when comparing straight-chain versus branched isomers. We discuss the possible connection of this behavior to shape resonances that influence the scattering.
Additional Information
© 2010 The American Physical Society. Received 2 November 2010; published 14 December 2010. This work was funded through a collaborative program by the US National Science Foundation under Grants No. PHY 0653452 and No. PHY 0653396 and by the Brazilian Conselho Nacional de Desenvolvimento Científico e Tecnolόgico (CNPq) under Project No. 490415-2007–5. M.H.F.B. also acknowledges support from the Paraná State Agency Fundação Araucária and from FINEP (under Project No. CT-Infra), as well as computational support from Professor Carlos M. de Carvalho at DFis–UFPR and at LCPAD–UFPR. Work by V.M. and C.W. was also supported by the Chemical Sciences, Geosciences, and Biosciences Division, Office of BasicEnergy Sciences, Office of Science, US Department of Energy. The authors acknowledge the use of the Jet Propulsion Laboratory's Supercomputing and Visualization Facility, where the present calculations were performed.Attached Files
Published - Bettega2010p12689Phys_Rev_A.pdf
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Additional details
- Eprint ID
- 22565
- Resolver ID
- CaltechAUTHORS:20110301-084205729
- PHY 0653452
- NSF
- PHY 0653396
- NSF
- 490415-2007-5
- Brazilian Conselho Nacional de Desenvolvimento Científico e Tecnolόgico (CNPq)
- Paraná State Agency Fundação Araucária
- Financiadora de Estudos e Projetos Brazil (FINEP)
- Department of Energy (DOE)
- Created
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2011-03-01Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field