Black Holes at the LHC can Determine the Spin of Higgs Bosons

TL;DR

This paper introduces a novel method to determine the Higgs boson spin at the LHC by analyzing decay products from black holes potentially produced in TeV-scale gravity scenarios, enabling spin identification with high significance.

Contribution

It proposes using black hole decay signatures at the LHC to distinguish Higgs boson spin states, a new approach compared to traditional methods.

Findings

Higgs spin can be determined with 5σ significance using black hole decay data.

The method requires an integrated luminosity of 2.4 fb^-1.

Black hole decay provides a unique signature for Higgs spin measurement.

Abstract

We propose a new method to determine the spin of Higgs bosons at the LHC by using the decay products of black holes. Black holes may be produced if TeV-scale gravity theories are correct, and black holes decay into several particles. This decay results in the emission of high energy particles, including Higgs bosons. The difference of the degree of freedom between spin 0 and spin 1 Higgs bosons leads to a difference of the number of reconstructed Higgs bosons. From this fact, we can determine the spin of Higgs bosons with $5 \sigma$ significance by using the integrated luminosity L = 2.4 fb^-1, which can be accumulated in only one month operation.