Low-energy elastic electron scattering from furan

dc.creatorKhakoo, MA
dc.creatorMuse, J
dc.creatorRalphs, K
dc.creatorda Costa, RF
dc.creatorBettega, MHF
dc.creatorLima, MAP
dc.date2010
dc.date11110
dc.date2014-11-16T14:52:29Z
dc.date2015-11-26T16:23:31Z
dc.date2014-11-16T14:52:29Z
dc.date2015-11-26T16:23:31Z
dc.date.accessioned2018-03-28T23:04:43Z
dc.date.available2018-03-28T23:04:43Z
dc.identifierPhysical Review A. Amer Physical Soc, v. 81, n. 6, 2010.
dc.identifier1050-2947
dc.identifierWOS:000279380700002
dc.identifier10.1103/PhysRevA.81.062716
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/52778
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/52778
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/52778
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1268270
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionWe report normalized experimental and theoretical differential cross sections for elastic electron scattering by C(4)H(4)O (furan) molecules from a collaborative project between several Brazilian theoretical groups and an experimental group at California State Fullerton, USA. The measurements are obtained by using the relative flow method with helium as the standard gas and a thin aperture target gas collimating source. The relative flow method is applied without the restriction imposed by the relative flow pressure condition on helium and the unknown gas. The experimental data were taken at incident electron energies of 1, 1.5, 1.73, 2, 2.7, 3, 5, 7, 10, 20, 30, and 50 eV and covered the angular range between 10 degrees and 130 degrees. The measurements verify observed pi* shape resonances at 1.65 +/- 0.05eV and 3.10 +/- 0.05 eV scattering energies, in good agreement with the transmission electron data of Modelli and Burrow [J. Phys. Chem. A 108, 5721 (2004)]. Furthermore, the present results also indicated both resonances dominantly in the d-wave channel. The differential cross sections are integrated in the standard way to obtain integral elastic cross sections and momentum transfer cross sections. The calculations employed the Schwinger multichannel method with pseudopotentials and were performed in the static-exchange and in the static-exchange plus polarization approximations. The calculated integral and momentum transfer cross sections clearly revealed the presence of two shape resonances located at 1.95 and 3.56 eV and ascribed to the B(1) and A(2) symmetries of the C(2v) point group, respectively, in very good agreement with the experimental findings. Overall agreement between theory and experiment regarding the differential, momentum transfer, and integral cross sections is very good, especially for energies below 10 eV.
dc.description81
dc.description6
dc.descriptionUS National Science Foundation [PHY 0653452]
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionParana State agency Fundacao Araucaria
dc.descriptionFinep [CT-Infra]
dc.descriptionNSF
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionUS National Science Foundation [PHY 0653452]
dc.descriptionFinep [CT-Infra]
dc.descriptionCNPq [490415/2007-5]
dc.languageen
dc.publisherAmer Physical Soc
dc.publisherCollege Pk
dc.publisherEUA
dc.relationPhysical Review A
dc.relationPhys. Rev. A
dc.rightsaberto
dc.rightshttp://publish.aps.org/authors/transfer-of-copyright-agreement
dc.sourceWeb of Science
dc.subjectConfiguration-interaction Calculations
dc.subjectCross-sections
dc.subjectImpact Excitation
dc.subjectTetrahydrofuran
dc.subjectBases
dc.subjectDna
dc.subjectPseudopotentials
dc.subjectCollisions
dc.subjectMolecules
dc.subjectPyrrole
dc.titleLow-energy elastic electron scattering from furan
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución