Publicações Científicas / Publications

- Joint theoretical and experimental study on positron scattering by isopentane.
F. F. Frighetto, L. Chiari, J. P. Sullivan, S. J. Buckman, M. H. F. Bettega, S. d'A. Sanchez, A. Souza Barbosa and M. J. Brunger. Eur. Phys. J. D 78, 7 (2024). Link

- Low energy positron scattering by small hydrocarbons: methane, acetylene, ethylene, and ethane molecules
F. F. Frighetto, S. d'A. Sanchez. and A. Souza Barbosa, Eur. Phys. J. D. 77, 206 (2023)

- Valence and Rydberg excitations of 3-fluorotoluene in the 4.4–10.8 eV photoabsorption energy region.
E. Bandeira, S. Kumar, A. I. Lozano, M. H. F. Bettega, S. V. Hoffmann, N. C. Jones, A. Souza Barbosa, and P. Limão-Vieira, J. Quant. Spectrosc. Radiat. Transf. 312, 108796 (2024).

- Electron scattering from methyl formate (HCOOCH3): a joint theoretical and experimental study.
N. Tańska, E. Bandeira, A. Souza Barbosa, K. Wójcik, S. Dylnicka, E. Ptasińska-Denga, C. Szmytkowski, M. H. F. Bettega e P. Możejko, J. Phys. Chem. A 127, 7594 (2023).

- Low-energy Electron and Positron Scattering by para-Difluorobenzene.
L. V. S. Dalagnol, G. M. Moreira, A. Souza Barbosa and M. H. F. Bettega, J. Phys. Chem. A 127, 6486 (2023).

- Implementation of a model potential in the Schwinger multichannel method to describe polarization in positron–atom/molecule scattering: Studies for the noble gas atoms, H2 and N2
F. F. Frighetto, A. Souza Barbosa, and S. d'A. Sanchez. Phys. Rev. A 108, 012818 (2023).

- Valence and Rydberg excitations of 2-fluorotoluene in the 4.4–10.8 eV photoabsorption energy region
P. A. S. Randi, S. Kumar, A.I. Lozano, M. H. F. Bettega, S.V. Hoffmann, N.C. Jones, A. Souza Barbosa, and P. Limão-Vieira. J. Quant. Spectrosc. Radiat. Transf. 303 108597 (2023).

- Electronic State Spectroscopy of Nitromethane and Nitroethane.
L. V. S. Dalagnol, M. H. F. Bettega, N. C. Jones, S. V. Hoffmann, A. Souza Barbosa, and P. Limão-Vieira. J. Phys. Chem A 127, 1445 (2023).

- Electronically excited states of formic acid investigated by theoretical and experimental methods.
P. A. S. Randi, D. F. Pastega, M. H. F. Bettega, N. C. Jones, S. V. Hoffmann, S. Eden, A. Souza Barbosa, and P. Limão-Vieira. Spectrochim. Acta A 238, 122237 (2023).

- The Electronic Spectra of 2- chlorothiophene and 3-chlorothiophene in the Vacuum Ultraviolet Photoabsorption Energy Region (3.9-10.8 eV)
F. V. S. Oliveira, A. Souza Barbosa, N. C. Jones, S. V. Hoffmann and P. Limão-Vieira. J. Quant. Spectrosc. Radiat. Transf. 296, 108443 (2023).

- Cross sections for elastic collisions of low-energy positrons with tetrachloroethylene (C2Cl4) molecule.
R. O. Lima, A. S. Barbosa, M. H. F. Bettega, S. d'A. Sanchez, and G. M. Moreira. Chem. Phys. 567, 111807 (2023).

- Cross sections for elastic electron scattering by benzene at low and intermediate energies.
A. A. Cadena, A. G. Falkowski, R. Pocoroba, R. Jones, M. Mathur, J. G. Childers, A. S. Barbosa, M. H. F. Bettega, R. F. da Costa, M. A. P. Lima, F. Kossoski, and M. A. Khakoo. Phys. Rev. A 106, 062825 (2022).

- Low-energy positron scattering by pyridine and aniline
Alessandra Souza Barbosa . J. Phys. Chem. A 126 , 7924 (2022).

- Joint experimental and theoretical study on low-energy elastic electron scattering by gaseous alkynes: Differential cross sections, shape resonances, and methylation effects.
M. A. Khakoo, G. Tatreau, J. G. Childers, K. Oen, J. Fernandez, B. A. Hlousek, M. Zawadzki, F. P. Bardela, L. V. S. Dalagnol, G. M. Moreira, M. H. F. Bettega, and A. Souza Barbosa . Phys. Rev. A 105, 042809 (2022).

- Low-lying electronic states of ethanol investigated by theoretical and synchrotron radiation methods.
A. Souza Barbosa, M. Mendes, N. C. Jones, S. V. Hoffmann, M. H. F. Bettega, M. J. Brunger, and P. Limão-Vieira. J. Quant. Spectrosc. Radiat. Transf. 285, 108170 (2022) Link

- Low-energy electron collisions with cubane: shape resonance spectra, Ramsauer-Townsend minimum and virtual state.
T. C. Freitas, G. M. Moreira, A. Souza Barbosa and M. H. F. Bettega, Eur. Phys. J. D 76, 56 (2022)

- Elastic positron collisions with 1,1-difluoroethylene.
R. O. Lima, G. M. Moreira, A. Souza Barbosa, M. H. F. Bettega and S. d'A. Sanchez, J. Phys. Chem. A 125, 6949 (2021).

- Theoretical and Experimental study on scattering of low-energy electrons by Dimethyl and Diethyl Ethers
Gillian Tatreau, Borna Hlousek, Mateus Zawadzki, Murtadha Khakoo, Fernanda Bardela, Alessandra Souza Barbosa, M. H. F. Bettega. J. Phys. B 53, 225202 (2020).

- A complete cross section data set for electron scattering by pyridine: modelling electron transport in the energy range 0-100 eV.
F. Costa, A. Traoré-Dubuis, L. Álvarez, A. I. Lozano, X. Ren, A. Dorn, P. Limão-Vieira, F. Blanco, J. C. Oller, A. Muñoz, A. García-Abenza, J. D. Gorfinkiel, A. S. Barbosa, M. H. F. Bettega, P. Stokes, R. D. White, D. B. Jones, M. J. Brunger e G. García. Int. J. Mol. Sci. 21, 6947 (2020).

- Positron collisions with targets of biological and technological relevance.
Alessandra Souza Barbosa, S. d'A. Sanchez, M. H. F. Bettega. J. Phys. Conf. Ser. 1412, 052001 (2020).

- Theoretical study on positron scattering by benzene over a broad energy range.
Alessandra Souza Barbosa, F. Blanco, G. García and M. H. F. Bettega. Phys. Rev. A 100, 042705 (2019).

- Experimental and theoretical analysis for total electron scattering cross sections of benzene.
F. Costa, L. Alvarez, A. I. Lozano, F. Blanco, J. C. Oller, A. Muñoz, A. S. Barbosa, M. H. F. Bettega, F. Ferreira da Silva, P. Limão-Vieira, R. White, M. J. Brunger, G. García, J. Chem. Phys. 151, 084310 (2019).

- Elastic collisions of low-energy positrons with tetrahydrofuran.
Alessandra Souza Barbosa and Márcio H. F. Bettega. J. Chem. Phys. 150, 184305 (2019).

- Probing the Lowest-Lying Electronic States of Acrylic Acid by Experimental and Theoretical Methods.
M. Mendes, A. S. Barbosa, F. da Silva, N. Jones, S. Hoffmann, G. Garcia, M. H. F. Bettega e P. Limão-Vieira. J. Phys. Chem. A 122, 8191 (2018).

- Experimental and theoretical electron-scattering cross-section data for dichloromethane
K. Krupa, E. Lange, F. Blanco, A. S. Barbosa, D. F. Pastega, S. d’A. Sanchez, M. H. F. Bettega, G. García, P. Limão-Vieira and F. Ferreira da Silva, Phys. Rev. A 97, 042702 (2018).

- Low-energy electron collisions with proline and pyrrolidine: A comparative study
Alessandra Souza Barbosa, Thiago Corrêa Freitas, and M. H. F. Bettega. J. Chem. Phys. 148, 074304 (2018).

- Bound state in positron scattering by allene
Alessandra Souza Barbosa, Sergio d’Almeida Sanchez, and Márcio H. F. Bettega. Phys. Rev. A 96, 062706 (2017).

- Calculated cross sections for elastic scattering of slow positrons by silane
Alessandra Souza Barbosa and Márcio H. F. Bettega. Phys. Rev. A 96, 042715 (2017).

- Electron collisions with F2CO molecules
Thiago Corrêa Freitas, Alessandra Souza Barbosa and Márcio Henrique Franco Bettega. Phys. Rev. A 96, 012702 (2017).

- Shape resonances, virtual state and Ramsauer-Townsend minimum in the low-energy electron collisions with benzene
Alessandra Souza Barbosa and Márcio H. F. Bettega, J. Chem. Phys. 146, 154302 (2017).

- Valence and Rydberg Excitations of 2,4- and 2,6-Difluorotoluene as Studied by Vacuum Ultraviolet Synchrotron Radiation and ab Initio Calculations
A. Souza Barbosa, F. Ferreira da Silva, A. Rebelo, S. V. Hoffmann, M. H. F. Bettega, and P. Limão-Vieira. J. Phys. Chem. A 120, 8998 (2016).

- Theoretical and experimental study on electron interactions with chlorobenzene: Shape resonances and differential cross sections
Alessandra Souza Barbosa, Márcio T. do N. Varella, Sergio d’A. Sanchez, João Ameixa, Francisco Blanco, Gustavo García, Paulo Limão-Vieira, Filipe Ferreira da Silva, and Márcio H. F. Bettega, J. Chem. Phys. 145, 084311 (2016).

- Combined experimental and theoretical study on the differential elastic scattering cross sections for acetone by electron impact energy of 7.0–50 eV
D. F. Pastega, E. Lange, J. Ameixa, A. S. Barbosa, F. Blanco, G. García, M. H. F. Bettega, P. Limão-Vieira, and F. Ferreira da Silva. Phys. Rev. A 93, 032708 (2016).

- Elastic cross sections for low-energy electron collisions with tetrahydropyran
Alessandra Souza Barbosa and Márcio H.F. Bettega. Eur. Phys. J. D 70, 34 (2016).

- Low-energy electron scattering by carbon tetrachloride
Giseli M Moreira, Alessandra Souza Barbosa, Diego F Pastega and Márcio H F Bettega. J. Phys. B 49, 035202 (2016).

- Low-energy positron scattering by pyrimidine
Alessandra Souza Barbosa, Diego F. Pastega and Márcio H. F. Bettega. J. Chem. Phys. 143, 244316 (2015).

- Elastic scattering of low-energy electrons by tetrahydropyran
Alessandra Souza Barbosa and Márcio H. F. Bettega. J. Phys. Conf. Ser. 635, 012016 (2015).

- Differential elastic electron scattering by pentane
Kamil Fedus, C. Navarro, L. R. Hargreaves, M. A. Khakoo, Alessandra Souza Barbosa, and M. H. F. Bettega. Phys. Rev. A 91, 042701 (2015).

- Collisions of low-energy electrons with cyclohexane
Alessandra Souza Barbosa and Márcio H. F. Bettega. J. Chem. Phys. 141, 244307 (2014).

- Elastic scattering of low-energy electrons by 1,4-dioxane
Alessandra Souza Barbosa and Márcio H. F. Bettega. J. Chem. Phys. 140, 184303 (2014).

- Shape resonances in low-energy-electron collisions with halopyrimidines
Alessandra Souza Barbosa and Márcio H. F. Bettega. J. Chem. Phys. 139, 214301 (2013).

- Shape resonances in the elastic scattering of slow electrons by pyridine
Alessandra S. Barbosa, Diego F. Pastega, and Márcio H. F. Bettega. Phys. Rev. A 88, 022705 (2013).