QCD and spin effects in black hole airshowers

TL;DR

This paper investigates the impact of QCD and black hole spin effects on airshowers caused by ultrahigh-energy cosmic rays, finding no observable signatures and confirming model robustness.

Contribution

It provides new Monte Carlo simulation results for rotating black holes and clarifies that QCD and spin effects do not alter airshower signatures.

Findings

QCD effects do not produce observable airshower signatures.

Black hole spin has negligible impact on airshower characteristics.

Main airshower features are model-independent.

Abstract

In models with large extra dimensions, black holes may be produced in high-energy particle collisions. We revisit the physics of black hole formation in extensive airshowers from ultrahigh-energy cosmic rays, focusing on collisional QCD and black hole emissivity effects. New results for rotating black holes are presented. Monte Carlo simulations show that QCD effects and black hole spin produce no observable signatures in airshowers. These results further confirm that the main characteristics of black hole-induced airshowers do not depend on the fine details of micro black hole models.