activity
20242026
collaborators

5 papers

astro-ph.CO2026

Evaporation of Primordial Black Holes with Multimodal Mass and Extended Spin Distributions: Cosmological Imprints on the Effective Number of Relativistic Species

T. Toghrai, A. Daassou, Y. Ouchhaine +2

Primordial black holes (PBHs) form through several distinct mechanisms, each imprinting a characteristic mass function that a single-mass treatment risks erasing. Building on the F…

hep-th2025

Responses of AdS black holes to the collective influence of quintessence and string cloud

Hayat Laassiri, Ahmed Daassou, Rachid Benbrik

This research paper explores the interplay between quintessence and a cloud of strings, focusing on their influence on critical points, behaviors, and fractional-order phase transi…

hep-th2024

Phase diagrams of a nonlinear magnetic charged rotating AdS black hole with a quintessence field

Hayat. Laassiri, Ahmed. Daassou, Rachid. Benbrik

In this paper, we investigate the phase transitions and critical behavior of a nonlinear magnetically charged rotating AdS black hole, with a particular emphasis on the influence o…

hep-th2024

Analytical Critical Phenomena of Rotating Regular AdS Black Holes with Dark Energy

Hayat. Laassiri, Ahmed. Daassou, Rachid. Benbrik

This study focuses on precisely calculating analytical critical points for rotating regular AdS black holes, examining scenarios with and without external dark field contributions.…

hep-th2024

Thermodynamic features of AdS black holes within the Rastall gravity and perfect fluid matter framework

Hayat. Laassiri, Ahmed. Daassou, Rachid. Benbrik

In this study, we analyzed the impact of a perfect fluid on the phase transition of Anti-de Sitter (AdS) black holes within the Rastall gravitational background. Compared to simila…