Search for long-lived particles decaying to jets with displaced vertices in proton-proton collisions at $\sqrt{s}=$ 13 TeV

Abstract

A search is presented for long-lived particles produced in pairs in proton-proton collisions at the LHC operating at a center-of-mass energy of 13 TeV. The data were collected with the CMS detector during the period from 2015 through 2018, and correspond to a total integrated luminosity of 140 fb${}^{-1}$. This search targets pairs of long-lived particles with mean proper decay lengths between 0.1 and 100 mm, each of which decays into at least two quarks that hadronize to jets, resulting in a final state with two displaced vertices. No significant excess of events with two displaced vertices is observed. In the context of $R$-parity violating supersymmetry models, the pair production of long-lived neutralinos, gluinos, and top squarks is excluded at 95% confidence level for cross sections larger than 0.08 fb, masses between 800 and 3000 GeV, and mean proper decay lengths between 1 and 25 mm.

Replaced with the published version. Added the journal reference and the DOI. All the figures and tables, including additional supplementary figures, can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/EXO-19-013 (CMS Public Pages)

References in corpus (16)

• 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
• Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
• Particle-flow reconstruction and global event description with the CMS detector
• Echoes of a Hidden Valley at Hadron Colliders
• The CMS trigger system
• Description and performance of track and primary-vertex reconstruction with the CMS tracker
• Asymmetric Dark Matter
• Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV
• Squark and gluino production cross sections in pp collisions at $\sqrt{s}$ = 13, 14, 33 and 100 TeV
• Discovering the Higgs Through Highly-Displaced Vertices
• Phenomenology of Hidden Valleys at Hadron Colliders
• Simply Unnatural Supersymmetry
• Search for pair-produced resonances decaying to jet pairs in proton-proton collisions at sqrt(s) = 8 TeV
• Probing Baryogenesis with Displaced Vertices at the LHC
• NNLL soft and Coulomb resummation for squark and gluino production at the LHC

Cited by in corpus (10)

• Collider Searches for Dark Matter through the Higgs Lens
• Detecting long-lived multi-charged particles in neutrino mass models with MoEDAL
• Energetic long-lived particles in the CMS muon chambers
• Status of searches for electroweak-scale supersymmetry after LHC Run 2
• Search for long-lived particles using displaced vertices and missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Long live The NMSSM!
• Probing conversion-driven freeze-out at the LHC
• t-channel dark matter at the LHC -- a whitepaper
• Probing displaced top quark signature at the LHC Run 3
• Search for new physics in jet multiplicity patterns of multilepton events at $\sqrt{s}$ = 13 TeV