Close-coupling scattering cross sections and a model for positron cooling in a buffer gas of molecular nitrogen

Use este identificador para citar ou linkar para este item: http://hdl.handle.net/1843/64018

Tipo:	Artigo de Periódico
Título:	Close-coupling scattering cross sections and a model for positron cooling in a buffer gas of molecular nitrogen
Autor(es):	Luis Argel Poveda Calviño Denise da Costa Assafrão de Lima Jenifer Geribola Pinheiro José Rachid Mohallem
Resumo:	Cross sections for positron scattering from molecular nitrogen are reported for energies below the positronium formation threshold. The elastic and state-to-state rotational and vibrational cross sections were obtained within the close-coupling formalism, using a three-dimensional potential energy surface for the interaction of the system. The inelastic cross sections was involved in a kinetic model to describe recent experimental results about positron cooling in a buffer gas of molecular nitrogen. Unlike a previous model [M. R. Natisin et al., J. Phys. B 47, 225209 (2014)], our prediction attributes a leading role to the 0→1 vibrational excitation of N2.
Assunto:	Positrons
Idioma:	eng
País:	Brasil
Editor:	Universidade Federal de Minas Gerais
Sigla da Instituição:	UFMG
Departamento:	ICX - DEPARTAMENTO DE FÍSICA
Tipo de Acesso:	Acesso Restrito
Identificador DOI:	https://doi.org/10.1103/PhysRevA.100.062706
URI:	http://hdl.handle.net/1843/64018
Data do documento:	2019
metadata.dc.url.externa:	https://journals.aps.org/pra/abstract/10.1103/PhysRevA.100.062706
metadata.dc.relation.ispartof:	Physical Review A
Aparece nas coleções:	Artigo de Periódico

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