Elastic Positron Collisions with 1,1-Difluoroethylene

Autor: Alessandra Souza Barbosa, Sergio d’A. Sanchez, Rafael Oliveira Lima, Márcio H. F. Bettega, G. M. Moreira

Publikováno v: The Journal of Physical Chemistry A. 125:6949-6953

This work reports a theoretical investigation on the elastic-positron collision with the 1,1-difluoroethylene molecule for energies up to 10 eV. We have employed the Schwinger multichannel method in the static-plus polarization level of approximation

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8bcae6c8dd4e13380c46810b277119e8
https://doi.org/10.1021/acs.jpca.1c04047

Sympatric speciation based on pure assortative mating

Autor: Carolina L. N. Costa, R. A. Caetano, Sergio d’A. Sanchez, Marcus A. M. de Aguiar

Although geographic isolation has been shown to play a key role in promoting reproductive isolation, it is now believed that speciation can also happen in sympatry and with considerable gene flow. Here we present a model of sympatric speciation based

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fade764149510099531d5cc22fb146dd
http://arxiv.org/abs/2002.12831

Theoretical and experimental study on electron interactions with chlorobenzene: Shape resonances and differential cross sections

Autor: Sergio d’A. Sanchez, Gustavo García, Márcio T. do N. Varella, João Ameixa, Alessandra Souza Barbosa, Paulo Limão-Vieira, Francisco J. Blanco, Márcio H. F. Bettega, F. Ferreira da Silva

Publikováno v: E-Prints Complutense. Archivo Institucional de la UCM
instname
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
Digital.CSIC. Repositorio Institucional del CSIC

9 págs.; 6 figs.; 1 tab.
In this work, we report theoretical and experimental cross sections for elastic scattering of electrons by chlorobenzene (ClB). The theoretical integral and differential cross sections (DCSs) were obtained with the Schw

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f4d28d73072ec0548b4b38996e105b7

Positron and electron collisions with nitrous oxide: Measured and calculated cross sections

Autor: Aantonio Zecca, Marco A. P. Lima, MárcioH.F. Bettega, Luca Chiari, Sergio d’A. Sanchez, Gustavo García, Francisco J. Blanco, Michael J. Brunger, E. Trainotti, Márcio T. do N. Varella

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

We present cross-section results from an experimental and theoretical study on positron scattering from nitrous oxide. Total cross sections (TCSs) have been measured at incident energies between 0.1 and 70 eV with a linear-transmission-based positron

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1b1b7f9a5a3141609fabda3957ab359
http://hdl.handle.net/10261/87513

Shape resonance spectra of lignin subunits

Autor: Alexandra P. P. Natalense, Marco A. P. Lima, Márcio T. do N. Varella, Eliane M. de Oliveira, Márcio H. F. Bettega, Sergio d’A. Sanchez

Publikováno v: Physical Review A. 86

We report integral cross sections for elastic electron scattering by the lignin subunits phenol, guaiacol, and $p$-coumaryl alcohol. Our calculations employed the Schwinger multichannel method with pseudopotentials and indicate three to four ${\ensur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2c4df1578a59bc0632f7d88c2296bc21
https://doi.org/10.1103/physreva.86.020701