Semi-visible jets + X: Illuminating Dark Showers with Radiation
arXiv:2409.04741 · doi:10.1007/JHEP12(2024)105
Abstract
We investigate the potential to search for semi-visible jets (SVJs) at the Large Hadron Collider (LHC) using initial-state radiation (ISR). Both photon ISR and jet ISR channels are considered, using a benchmark signal model with the decay of a leptophobic mediator forming two SVJs. We compare and extend several techniques to decompose the missing transverse momentum into per-jet contributions, in order to reconstruct the mediator mass and to define a new observable measuring the fraction of invisible dark hadrons. The presence of ISR facilitates the identification of the SVJs, and the resulting boost improves the resolution of the observables, especially for models with high invisible fractions. We combine the two observables to propose a complete search strategy and discuss an extension of the strategy to probe the whole model parameter space.
Published by JHEP
References in corpus (8)
- The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
- An Introduction to PYTHIA 8.2
- A direct empirical proof of the existence of dark matter
- LHC Searches for Dark Sector Showers
- Autoencoders for Semivisible Jet Detection
- Measuring the Higgs boson mass with transverse mass variables
- Learning to Identify Semi-Visible Jets
- Dark Sector Showers in the Lund Jet Plane