Feasibility of detecting spin-0 dark matter mediators decaying into gauge bosons through invariant mass reconstruction
Abstract
Simplified Dark Matter (DM) models present a single dark matter particle that interacts weakly with Standard Model (SM) particles through a mediator particle. In this work, the potential of detecting an s-channel spin-0 DM mediator (Y0) was explored by mass reconstruction of γ and Z boson-associated processes. The events for each process were generated using MadGraph5_aMC@NLO with Pythia8 for parton showering. Two RIVET analyses were then used for the Y0 mass reconstruction: MC_DIPHOTON for diphoton pair productions and MC_ZZINC for Z boson pair productions. The process p p → γ Y0, Y0 → γ γ yielded the highest cross section for all three Y0 masses. The Y0 mass of 1000 GeV also produced the highest cross section for all processes. Well-defined peaks were observed at the expected masses of Y0 for the processes p p → Z Y0, Y0 → γ γ and p p → γ Y0, Y0 → Z Z. Given the available analyses, these results indicate that processes in which the DM mediator decays into two identical bosons present a promising area for dark matter exploration.
Downloads
Published
Issue
Section
License
By submitting their manuscript to the Samahang Pisika ng Pilipinas (SPP) for consideration, the Authors warrant that their work is original, does not infringe on existing copyrights, and is not under active consideration for publication elsewhere.
Upon acceptance of their manuscript, the Authors further agree to grant SPP the non-exclusive, worldwide, and royalty-free rights to record, edit, copy, reproduce, publish, distribute, and use all or part of the manuscript for any purpose, in any media now existing or developed in the future, either individually or as part of a collection.
All other associated economic and moral rights as granted by the Intellectual Property Code of the Philippines are maintained by the Authors.
