Eur. Phys. J. C (2015) 75: 57
https://doi.org/10.1140/epjc/s10052-015-3292-1

Regular Article - Theoretical Physics

Greybody factors of massive charged fermionic fields in a charged two-dimensional dilatonic black hole

¹ Departamento de Ciencias Matemáticas y Físicas, Universidad Católica de Temuco, Montt 56, Casilla 15-D, Temuco, Chile
² Facultad de Ingeniería, Universidad Diego Portales, Avenida Ejército Libertador 441, Casilla 298-V, Santiago, Chile
³ Instituto de Física, Pontificia Universidad Católica de Valparaíso, Casilla 4950, Valparaiso, Chile
⁴ Departamento de Física, Facultad de Ciencias, Universidad de La Serena, Avenida Cisternas 1200, La Serena, Chile

^* e-mail: yvasquez@userena.cl

Received: 24 December 2014
Accepted: 25 January 2015
Published online: 6 February 2015

Abstract

We study massive charged fermionic perturbations in the background of a charged two-dimensional dilatonic black hole, and we solve the Dirac equation analytically. Then we compute the reflection and transmission coefficients and the absorption cross section for massive charged fermionic fields, and we show that the absorption cross section vanishes at the low- and high-frequency limits. However, there is a range of frequencies where the absorption cross section is not null. Furthermore, we study the effect of the mass and electric charge of the fermionic field over the absorption cross section.