LHC searches for dark sector showers

Timothy Cohen, Mariangela Lisanti, Hou Keong Lou, Siddharth Mishra-Sharma

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

This paper proposes a new search program for dark sector parton showers at the Large Hadron Collider (LHC). These signatures arise in theories characterized by strong dynamics in a hidden sector, such as Hidden Valley models. A dark parton shower can be composed of both invisible dark matter particles as well as dark sector states that decay to Standard Model particles via a portal. The focus here is on the specific case of ‘semi-visible jets,’ jet-like collider objects where the visible states in the shower are Standard Model hadrons. We present a Simplified Model-like parametrization for the LHC observables and propose targeted search strategies for regions of parameter space that are not covered by existing analyses. Following the ‘mono-X’ literature, the portal is modeled using either an effective field theoretic contact operator approach or with one of two ultraviolet completions; sensitivity projections are provided for all three cases. We additionally highlight that the LHC has a unique advantage over direct detection experiments in the search for this class of dark matter theories.

Original languageEnglish (US)
Article number196
JournalJournal of High Energy Physics
Volume2017
Issue number11
DOIs
StatePublished - Nov 1 2017

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Keywords

  • Jets
  • Phenomenological Models

Fingerprint Dive into the research topics of 'LHC searches for dark sector showers'. Together they form a unique fingerprint.

  • Cite this