Probing displaced top quark signature at the LHC Run 3
arXiv:2212.06678 · doi:10.1140/epjc/s10052-023-11470-6
Abstract
In the context of prospective studies for searches of new physics at the LHC Run 3, this paper investigates the relevance of using top quarks produced from new long-lived particles, and detected in the tracker volume of the ATLAS and CMS experiments. Such a signature, referred to as displaced top quarks, leads to final states containing displaced vertices and a high multiplicity of displaced jets and tracks, thanks to the top quark decays. Therefore, it is a possible powerful tool for searching for new long-lived particles. Three simplified models based on supersymmetry are explicitly designed for the study of this signature. They differ according to the nature of the long-lived heavy particle which produces at least one top quark: electrically neutral or charged, coloured or non-coloured long-lived particle. For each model, a wide region of parameter space, consistent with a reasonable number of displaced top quarks decaying in a typical tracker volume has been probed. From this study, promising benchmarks are defined and experimental guidelines are suggested.
arXiv comment24 pages, 48 figures
References in corpus (60)
- 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
- FastJet user manual
- FeynRules 2.0 - A complete toolbox for tree-level phenomenology
- Parton distributions for the LHC Run II
- LHAPDF6: parton density access in the LHC precision era
- UFO - The Universal FeynRules Output
- R-parity violating supersymmetry
- MadAnalysis 5, a user-friendly framework for collider phenomenology
- Aspects of Split Supersymmetry
- Rivet user manual
- Stop Production at Hadron Colliders
- The Production of Charginos/Neutralinos and Sleptons at Hadron Colliders
- Search for electroweak production of charginos and sleptons decaying into final states with two leptons and missing transverse momentum in TeV collisions using the ATLAS detector
- Searches for electroweak production of charginos, neutralinos, and sleptons decaying to leptons and W, Z, and Higgs bosons in pp collisions at 8 TeV
- CheckMATE 2: From the model to the limit
- Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider
- Designing and recasting LHC analyses with MadAnalysis 5
- Split Supersymmetry
- Search for electroweak production of supersymmetric particles in final states with two or three leptons at TeV with the ATLAS detector
- Search for massive, long-lived particles using multitrack displaced vertices or displaced lepton pairs in pp collisions at = 8 TeV with the ATLAS detector
- Confronting new physics theories to LHC data with MadAnalysis 5
- Search for supersymmetry in multijet events with missing transverse momentum in proton-proton collisions at 13 TeV
- Search for long-lived charged particles in proton-proton collisions at sqrt(s) = 13 TeV
- Search for long-lived, massive particles in events with displaced vertices and missing transverse momentum in = 13 TeV collisions with the ATLAS detector
- Search for electroweak production of supersymmetric states in scenarios with compressed mass spectra at TeV with the ATLAS detector
- Dijet Searches for Supersymmetry at the LHC
- Search for new phenomena with the MT2 variable in the all-hadronic final state produced in proton-proton collisions at sqrt(s) = 13 TeV
- Interactions of Heavy Stable Hadronizing Particles
- Searches for physics beyond the standard model with the variable in hadronic final states with and without disappearing tracks in proton-proton collisions at 13 TeV
- Search for supersymmetric partners of electrons and muons in proton-proton collisions at 13 TeV
- Search for disappearing tracks in proton-proton collisions at 13 TeV
- Search for direct slepton and gaugino production in final states with two leptons and missing transverse momentum with the ATLAS detector in pp collisions at sqrt(s) = 7 TeV
- A search for pair-produced resonances in four-jet final states at =13 TeV with the ATLAS detector
- Search for long-lived, heavy particles in final states with a muon and multi-track displaced vertex in proton-proton collisions at sqrt(s)=7 TeV with the ATLAS detector
- Simplified fast detector simulation in MadAnalysis 5
- Search for top squark production in fully-hadronic final states in proton-proton collisions at 13 TeV
- Search for long-lived charginos based on a disappearing-track signature using 136 fb of collisions at = 13 TeV with the ATLAS detector
- Search for long-lived particles using displaced jets in proton-proton collisions at 13 TeV
- Search for supersymmetry in proton-proton collisions at 13 TeV using identified top quarks
- Next-to-leading order slepton pair production at hadron colliders
- Search for physics beyond the standard model in events with jets and two same-sign or at least three charged leptons in proton-proton collisions at 13 TeV
- Light Gravitinos at Colliders and Implications for Cosmology
- Search for long-lived, massive particles in events with a displaced vertex and a muon with large impact parameter in collisions at TeV with the ATLAS detector
- Search for top squark pair production using dilepton final states in pp collision data collected at 13 TeV
- Search for displaced leptons in TeV collisions with the ATLAS detector
- Search for supersymmetry in events with four or more charged leptons in $139\,\mbox{fb\(^{-1}\)}$ of TeV collisions with the ATLAS detector
- Search for displaced vertices of oppositely charged leptons from decays of long-lived particles in collisions at = 13 TeV with the ATLAS detector
- Gluino Pair Production at the LHC: The Threshold
- Search for R-parity-violating supersymmetric particles in multi-jet final states produced in - collisions at TeV using the ATLAS detector at the LHC
- Light gravitino dark matter: LHC searches and Hubble tension
- Recasting LHC searches for long-lived particles with MadAnalysis 5
- Deformation of the gravitational wave spectrum by density perturbations
- Search for R-parity violating supersymmetry in a final state containing leptons and many jets with the ATLAS experiment using TeV proton-proton collision data
- Search for supersymmetry in pp collisions at 13 TeV with 137 fb in final states with a single lepton using the sum of masses of large-radius jets
- Search for long-lived particles decaying to leptons with large impact parameter in proton-proton collisions at = 13 TeV
- Search for long-lived particles decaying to jets with displaced vertices in proton-proton collisions at 13 TeV
- Probing new physics with displaced vertices: muon tracker at CMS
- Search for -parity violating supersymmetry in pp collisions at 13 TeV using b jets in a final state with a single lepton, many jets, and high sum of large-radius jet masses
- Measurements of sensor radiation damage in the ATLAS inner detector using leakage currents