Deciphering compressed electroweakino excesses with MadAnalysis 5

Abstract

We present version 1.11 of MadAnalysis 5, which extends the software package in several major ways to improve the handling of efficiency tables, the computation of observables in different reference frames and the calculation of statistical limits and/or significance. We detail how these improvements, whose development was motivated by the desire to implement two Run 2 LHC analyses targeting signatures with soft leptons and missing energy and exhibiting mild excesses (ATLAS-SUSY-2018-16 and ATLAS-SUSY-2019-09), have been implemented by both direct extensions of the code and integrations with third-party software. We then document the implementation and validation of these analyses, demonstrating their utility along with the improved statistics capabilities of MadAnalysis 5 through an investigation of the Next-to-Minimal Supersymmetric Standard Model in the context of a larger set of overlapping excesses in channels with soft leptons/jets and missing transverse energy.

22 pages, 7 figures, 3 tables

References in corpus (72)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Search for the Standard Model Higgs Boson at LEP
• LHAPDF6: parton density access in the LHC precision era
• UFO - The Universal FeynRules Output
• SPheno, a program for calculating supersymmetric spectra, SUSY particle decays and SUSY particle production at e+ e- colliders
• CalcHEP 3.4 for collider physics within and beyond the Standard Model
• The Next-to-Minimal Supersymmetric Standard Model
• SARAH 4: A tool for (not only SUSY) model builders
• SPheno 3.1: extensions including flavour, CP-phases and models beyond the MSSM
• micrOMEGAs3.1 : a program for calculating dark matter observables
• MadAnalysis 5, a user-friendly framework for collider phenomenology
• Matching matrix elements and shower evolution for top-quark production in hadronic collisions
• Rivet user manual
• The Path to Proton Structure at One-Percent Accuracy
• Performance of electron and photon triggers in ATLAS during LHC Run 2
• Robust Independent Validation of Experiment and Theory: Rivet version 3
• Performance of the ATLAS muon triggers in Run 2
• Serendipity in dark photon searches
• Precision predictions for electroweak superpartner production at hadron colliders with Resummino
• CheckMATE 2: From the model to the limit
• QCD radiation in the production of heavy colored particles at the LHC
• Designing and recasting LHC analyses with MadAnalysis 5
• Searches for electroweak production of supersymmetric particles with compressed mass spectra in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• Search for heavy Higgs bosons decaying into two tau leptons with the ATLAS detector using $pp$ collisions at $\sqrt{s}=13$ TeV
• Towards a public analysis database for LHC new physics searches using MadAnalysis 5
• SModelS: a tool for interpreting simplified-model results from the LHC and its application to supersymmetry
• Minimal Kinematic Constraints and MT2
• Search for new phenomena in events with an energetic jet and missing transverse momentum in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for supersymmetry in proton-proton collisions at 13 TeV in final states with jets and missing transverse momentum
• Hunting Quasi-Degenerate Higgsinos
• Confronting new physics theories to LHC data with MadAnalysis 5
• Monojet plus soft dilepton signal from light higgsino pair production at LHC14
• micrOMEGAs 6.0: N-component dark matter
• Two-Loop Higgs mass calculations in supersymmetric models beyond the MSSM with SARAH and SPheno
• Search for squarks and gluinos in final states with jets and missing transverse momentum using 139 fb${}^{-1}$ of $\sqrt{s}$ =13 TeV $pp$ collision data with the ATLAS detector
• Search for chargino--neutralino pair production in final states with three leptons and missing transverse momentum in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• Search for new particles in events with energetic jets and large missing transverse momentum in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• The CMS statistical analysis and combination tool: COMBINE
• SModelS v1.2: long-lived particles, combination of signal regions, and other novelties
• A superspace module for the FeynRules package
• ColliderBit: a GAMBIT module for the calculation of high-energy collider observables and likelihoods
• Constraining new physics with SModelS version 2
• Generic calculation of two-body partial decay widths at the full one-loop level
• Reinterpretation of LHC Results for New Physics: Status and Recommendations after Run 2
• On the two-loop corrections to the Higgs masses in the NMSSM
• micrOMEGAs : a tool for dark matter studies
• Recursive Jigsaw Reconstruction: HEP event analysis in the presence of kinematic and combinatoric ambiguities
• Simplified fast detector simulation in MadAnalysis 5
• Sparticles in Motion - getting to the line in compressed scenarios with the Recursive Jigsaw Reconstruction
• Supersymmetric and non-supersymmetric models without catastrophic Goldstone bosons
• Reinterpreting the results of the LHC with MadAnalysis 5: uncertainties and higher-luminosity estimates
• Constraining new physics with collider measurements of Standard Model signatures
• A SModelS interface for pyhf likelihoods
• Search for supersymmetry in final states with two or three soft leptons and missing transverse momentum in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Testing new physics models with global comparisons to collider measurements: the Contur toolkit
• Electroweak superpartner production at 13.6 TeV with Resummino
• The Search for Electroweakinos
• $M_W$, Dark Matter and $a_{\mu }$ in the NMSSM
• A boost for the EW SUSY hunt: monojet-like search for compressed sleptons at LHC14 with 100 fb^-1
• Fast simulation of detector effects in Rivet
• Monojets reveal overlapping excesses for light compressed higgsinos
• Signal region combination with full and simplified likelihoods in MadAnalysis 5
• Proceedings of the second MadAnalysis 5 workshop on LHC recasting in Korea
• Spey: smooth inference for reinterpretation studies
• Searches for new physics with boosted top quarks in the MadAnalysis 5 and Rivet frameworks
• Global LHC constraints on electroweak-inos with SModelS v2.3
• Probing compressed mass spectra in the type-II seesaw model at the LHC
• Seeking a coherent explanation of LHC excesses for compressed spectra
• The Bayes factor surface for searches for new physics
• Long Dead Winos
• Taking aim at the wino-higgsino plane with the LHC
• LHC constraints on electroweakino dark matter revisited