Searching for Gluino LSP at the LHC

Abstract

We analyse relevant signals expected at the LHC, assuming that the gluino is the lightest supersymmetric particle (LSP) in the framework of the $\mu \nu$SSM. In this $R$-parity violating model, the presence of couplings involving right-handed neutrinos solves simultaneously the $\mu$ problem and the accommodations of neutrino masses and mixing angles. We study gluino pair production in quark-antiquark and gluon-gluon collisions. The main decay channels for the gluino LSP are the three-body decays to two quarks and a lepton or a neutrino. In both cases, the leading channels occur for the third family of quarks. We compare the predictions of this scenario with LHC searches for prompt and long-lived particles. To analyse the parameter space we sample the $\mu \nu$SSM for a gluino LSP, paying special attention to reproduce the current experimental data on neutrino and Higgs physics, as well as flavour observables. Our results imply a lower limit on the mass of the gluino LSP of about 2600 GeV, and an upper limit for the decay length of about 6 cm.

arXiv commentComments: Version published in EPJC. Discussion expanded, references added. 35 pages, 10 figures, 7 tables, 2 Appendices. Analysis of the stop and sbottom LSP at the LHC carried out in arXiv:2111.13212 and arXiv:2309.06456 respectively

References in corpus (91)

• 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
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• MultiNest: an efficient and robust Bayesian inference tool for cosmology and particle physics
• Parton distributions with LHC data
• A Supersymmetry Primer
• LHAPDF6: parton density access in the LHC precision era
• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm
• The anomalous magnetic moment of the muon in the Standard Model
• The fate of hints: updated global analysis of three-flavor neutrino oscillations
• A complete analysis of FCNC and CP constraints in general SUSY extensions of the standard model
• R-parity violating supersymmetry
• Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
• SPheno, a program for calculating supersymmetric spectra, SUSY particle decays and SUSY particle production at e+ e- colliders
• 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
• HiggsBounds: Confronting Arbitrary Higgs Sectors with Exclusion Bounds from LEP and the Tevatron
• Global analysis of three-flavour neutrino oscillations: synergies and tensions in the determination of theta_23, delta_CP, and the mass ordering
• Matching matrix elements and shower evolution for top-quark production in hadronic collisions
• 2020 Global reassessment of the neutrino oscillation picture
• HiggsBounds-4: Improved Tests of Extended Higgs Sectors against Exclusion Bounds from LEP, the Tevatron and the LHC
• HiggsSignals: Confronting arbitrary Higgs sectors with measurements at the Tevatron and the LHC
• HiggsBounds 2.0.0: Confronting Neutral and Charged Higgs Sector Predictions with Exclusion Bounds from LEP and the Tevatron
• Status of neutrino oscillations 2018: first hint for normal mass ordering and improved CP sensitivity
• The Next-to-Minimal Supersymmetric extension of the Standard Model reviewed
• Stop Production at Hadron Colliders
• Global constraints on absolute neutrino masses and their ordering
• Applying Exclusion Likelihoods from LHC Searches to Extended Higgs Sectors
• Search for electroweak production of charginos and sleptons decaying into final states with two leptons and missing transverse momentum in $\sqrt{s}=13$ TeV $pp$ collisions using the ATLAS detector
• Precision predictions for electroweak superpartner production at hadron colliders with Resummino
• CheckMATE 2: From the model to the limit
• HiggsBounds-5: Testing Higgs Sectors in the LHC 13 TeV Era
• QCD radiation in the production of heavy colored particles at the LHC
• Supersymmetric top and bottom squark production at hadron colliders
• HiggsSignals-2: Probing new physics with precision Higgs measurements in the LHC 13 TeV era
• Gaugino production in proton-proton collisions at a center-of-mass energy of 8 TeV
• Measurement of the anomalous precession frequency of the muon in the Fermilab Muon g-2 experiment
• Neutrino Mass Ordering from Oscillations and Beyond: 2018 Status and Future Prospects
• HiggsTools: BSM scalar phenomenology with new versions of HiggsBounds and HiggsSignals
• Proposal for a Supersymmetric Standard Model
• Constructing star products on Poisson manifolds
• Precise Prediction for M_W in the MSSM
• NNLL-fast: predictions for coloured supersymmetric particle production at the LHC with threshold and Coulomb resummation
• Search for long-lived, massive particles in events with displaced vertices and missing transverse momentum in $\sqrt{s}$ = 13 TeV $pp$ collisions with the ATLAS detector
• Neutrino masses and mixing, lightest neutralino decays and a solution to the $\mu$ problem in supersymmetry
• Analysis of the parameter space and spectrum of the $\mu \nu$SSM
• Threshold resummation for gaugino pair production at hadron colliders
• The MSSM confronts the precision electroweak data and the muon g-2
• LHC phenomenology of the $\mu \nu$SSM
• Gamma-ray detection from gravitino dark matter decay in the $\mu \nu$SSM
• NNLL resummation for stop pair-production at the LHC
• Neutrino Physics and Spontaneous CP Violation in the $\mu \nu$SSM
• Precise prediction for the Higgs-Boson Masses in the $\mu \nu$SSM
• Radiative contribution to neutrino masses and mixing in $\mu \nu$SSM
• Search for 100 MeV to 10 GeV gamma-ray lines in the Fermi-LAT data and implications for gravitino dark matter in the $\mu \nu$SSM
• Electroweak Phase Transition in the munuSSM
• Revisiting the SUSY mu problem and its solutions in the LHC era
• Search for the direct production of charginos and neutralinos in $\sqrt{s}$ = 13 TeV $pp$ collisions with the ATLAS detector
• Slepton pair production at the LHC in NLO+NLL with resummation-improved parton densities
• Joint Resummation for Gaugino Pair Production at Hadron Colliders
• Search for long-lived particles using displaced jets in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Searches for pair production of charginos and top squarks in final states with two oppositely charged leptons in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Search for long-lived particles using nonprompt jets and missing transverse momentum with proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Search for long-lived, massive particles in events with a displaced vertex and a muon with large impact parameter in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for displaced leptons in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• Search for supersymmetry in events with a $\tau$ lepton pair and missing transverse momentum in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Transverse-momentum resummation for gaugino-pair production at hadron colliders
• Searching for left sneutrino LSP at the LHC
• Precise prediction for the Higgs-Boson Masses in the $\mu \nu$SSM with three right-handed neutrino superfields
• CLUES on Fermi-LAT prospects for the extragalactic detection of munuSSM gravitino Dark Matter
• Probing the $\mu \nu$SSM with light scalars, pseudoscalars and neutralinos from the decay of a SM-like Higgs boson at the LHC
• Looking for the left sneutrino LSP with displaced-vertex searches
• The new $(g-2{)}_{\mu }$ result and the $\mu \nu$SSM
• MeV-GeV $\gamma$-ray telescopes probing axino LSP/gravitino NLSP as dark matter in the $\mu \nu$SSM
• Search for sharp and smooth spectral signatures of $\mu \nu$SSM gravitino dark matter with Fermi-LAT
• Searching for Supersymmetry: The $\mu \nu$SSM
• Search for heavy, long-lived, charged particles with large ionisation energy loss in $pp$ collisions at $\sqrt{s}=13\text{TeV}$ using the ATLAS experiment and the full Run 2 dataset
• Testing Exotic Scalars with HiggsBounds
• On-shell renormalization of neutralino and chargino mass matrices in R-parity violating models - Correlation between LSP decays and neutrino mixing angles revisited
• Supersymmetric explanation of the muon g-2 anomaly with and without stable neutralino
• Sampling the $\mu \nu$SSM for displaced decays of the tau left sneutrino LSP at the LHC
• Impact of Higgs physics on the parameter space of the $\mu \nu$SSM
• munuSSM: A python package for the $\mu$-from-$\nu$ Supersymmetric Standard Model
• Search for long-lived particles using displaced vertices and missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Higgsino and gaugino pair production at the LHC with aNNLO+NNLL precision
• Search for pair production of squarks or gluinos decaying via sleptons or weak bosons in final states with two same-sign or three leptons with the ATLAS detector
• NNLL-fast 2.0: Coloured Sparticle Production at the LHC Run 3 with $\sqrt{S}$ = 13.6 TeV
• Search for long-lived particles using out-of-time trackless jets in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Phenomenological implications of sterile neutrinos in the $\mu \nu$SSM and dark matter
• Studying squark mass spectrum through gluino decay at 100 TeV future hadron colliders