Scattering, absorption and greybody factor of scalar particles by Lorentz-violating charged black holes

Fuente: arXiv
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Main Author: Belchior, F. M.
Format: Preprint
Published: 2026
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author Belchior, F. M.
author_facet Belchior, F. M.
contents In this work, we investigate the scattering and absorption of spin 0 particles for electrically charged black holes in two gravity models with spontaneous Lorentz symmetry breaking. The first one is the so-called bumblebee model that involves a vector field with a nonvanishing vacuum expectation value (VEV), while the second one involves a self-interacting Kalb-Ramond field coupled to gravity. For our purpose, we employ the partial waves method to compute the scattering cross-section and the absorption for these charged black holes. Moreover, we calculate the greybody factors (GFs) for spin 0 particles, showing the influence of both the LV parameter and electric charge.
format Preprint
id arxiv_https___arxiv_org_abs_2605_17647
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Scattering, absorption and greybody factor of scalar particles by Lorentz-violating charged black holes
Belchior, F. M.
General Relativity and Quantum Cosmology
In this work, we investigate the scattering and absorption of spin 0 particles for electrically charged black holes in two gravity models with spontaneous Lorentz symmetry breaking. The first one is the so-called bumblebee model that involves a vector field with a nonvanishing vacuum expectation value (VEV), while the second one involves a self-interacting Kalb-Ramond field coupled to gravity. For our purpose, we employ the partial waves method to compute the scattering cross-section and the absorption for these charged black holes. Moreover, we calculate the greybody factors (GFs) for spin 0 particles, showing the influence of both the LV parameter and electric charge.
title Scattering, absorption and greybody factor of scalar particles by Lorentz-violating charged black holes
topic General Relativity and Quantum Cosmology
url https://arxiv.org/abs/2605.17647