Top Quark Production from Black Holes at the CERN LHC

TL;DR

This paper investigates the potential for black hole evaporation at the LHC to produce top quarks, comparing it with standard quantum chromodynamics predictions, and discusses its implications as a signature of black hole formation.

Contribution

It calculates the cross sections for top quark production from black holes at the LHC and compares them with NNLO QCD predictions, highlighting conditions where black hole signals could dominate.

Findings

Black hole production could lead to higher top quark yields than standard models under certain conditions.

Top quark production rates from black holes depend on Planck and black hole masses.

Observation of excess massive particles may indicate black hole formation at the LHC.

Abstract

LHC is expected to be a top quark factory. If the fundamental Planck scale is near a TeV, then we also expect the top quarks to be produced from black holes via Hawking radiation. In this paper we calculate the cross sections for top quark production from black holes at the LHC and compare it with the direct top quark cross section via parton fusion processes at next-to-next-to-leading order (NNLO). We find that the top quark production from black holes can be larger or smaller than the pQCD predictions at NNLO depending upon the Planck mass and black hole mass. Hence the observation of very high rates for massive particle production (top quarks, higgs or supersymmetry) at the LHC may be an useful signature for black hole production.