Emerging Jets
arXiv:1502.05409 · doi:10.1007/JHEP05(2015)059
Abstract
In this work, we propose a novel search strategy for new physics at the LHC that utilizes calorimeter jets that (i) are composed dominantly of displaced tracks and (ii) have many different vertices within the jet cone. Such emerging jet signatures are smoking guns for models with a composite dark sector where a parton shower in the dark sector is followed by displaced decays of dark pions back to SM jets. No current LHC searches are sensitive to this type of phenomenology. We perform a detailed simulation for a benchmark signal with two regular and two emerging jets, and present and implement strategies to suppress QCD backgrounds by up to six orders of magnitude. At the 14 TeV LHC, this signature can be probed with mediator masses as large as 1.5 TeV for a range of dark pion lifetimes, and the reach is increased further at the high-luminosity LHC. The emerging jet search is also sensitive to a broad class of long-lived phenomena, and we show this for a supersymmetric model with R-parity violation. Possibilities for discovery at LHCb are also discussed.
45 pages, 22 figures. v2: Typos fixed. v3: Minor modifications, references added, version accepted in JHEP. Supplementary code can be found at github.com/pedroschwaller/EmergingJets
References in corpus (20)
- PYTHIA 6.4 Physics and Manual
- The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
- Dark Matter Candidates from Particle Physics and Methods of Detection
- Tuning PYTHIA 8.1: the Monash 2013 Tune
- Echoes of a Hidden Valley at Hadron Colliders
- Description and performance of track and primary-vertex reconstruction with the CMS tracker
- Discovering the Higgs Through Highly-Displaced Vertices
- Phenomenology of Hidden Valleys at Hadron Colliders
- Asymmetric Dark Matter from Leptogenesis
- Hylogenesis: A Unified Origin for Baryonic Visible Matter and Antibaryonic Dark Matter
- Scale invariant extension of the standard model with strongly interacting hidden sector
- Unified origin of baryons and dark matter
- Aidnogenesis via Leptogenesis and Dark Sphalerons
- Multivariate discrimination and the Higgs + W/Z search
- Discerning Secluded Sector gauge structures
- Flavored dark matter beyond Minimal Flavor Violation
- Probing Baryogenesis with Displaced Vertices at the LHC
- Discovering Higgs Decays to Lepton Jets at Hadron Colliders
- Search for stopped long-lived particles produced in pp collisions at sqrt(s) = 7 TeV
- Displaced Vertices from X-ray Lines