Scattering and Orbiting in Reissner-Nordstrom black hole spacetime

TL;DR

This paper analyzes how charge affects the scattering, absorption, and reflection of massless particles of different spins around Reissner-Nordstrom black holes, revealing spin-dependent variations in cross sections.

Contribution

It provides a semi-analytical study of spin-dependent scattering and absorption cross sections in charged black hole spacetime, highlighting the influence of black hole charge.

Findings

Absorption cross section decreases with charge for spin-2 particles.

For spin-0 particles, absorption cross section increases with charge.

Charge has negligible effect on spin-1 particle cross sections.

Abstract

By using semi-analytical method,we investigate the transmission and reflection coefficient and absorption and scattering cross section of spin 0,1,2 particles which are massless from a charged non rotating black holes. Here orbiting scattering can be characterized of massless particles from Reissner-Nordstrom black hole at a critical angular momentum. We examine the effects upon reflection,transmission,scattering and absorption cross section due to the black hole charge. We find that with the increase of charge the absorption cross section decreased in spin-2 particle while in case of spin 0 particle it is reversed and in case of spin 1 the effect is negligible due to charge.