Black Hole Remnants at the LHC

TL;DR

This paper explores the potential signatures of stable black hole remnants at the LHC, highlighting that neutral remnants could lead to increased missing transverse momentum in collider events.

Contribution

It introduces a reference scenario for black hole remnants at the LHC using the CHARYBDIS2 Monte Carlo generator, focusing on the remnants' behavior and detectable signatures.

Findings

Neutral remnants are highly favored.

Increased missing transverse momentum expected.

Remnants could alter collider signatures significantly.

Abstract

We investigate possible signatures of black hole events at the LHC in the hypothesis that such objects will not evaporate completely, but leave a stable remnant. For the purpose of defining a reference scenario, we have employed the publicly available Monte Carlo generator CHARYBDIS2, in which the remnant's behavior is mostly determined by kinematic constraints and conservation of some quantum numbers, such as the baryon charge. Our findings show that electrically neutral remnants are highly favored and a significantly larger amount of missing transverse momentum is to be expected with respect to the case of complete decay.