In supersymmetry, a gluino (symbol g͂) is the hypothetical supersymmetric partner of a gluon.
In supersymmetric theories, gluinos are Majorana fermions and interact via the strong force as a color octet.[1] Gluinos have a lepton number 0, baryon number 0, and spin 1/2.
Experimentally, gluinos have been one of the most promising SUSY particle candidates to be discovered since the production cross-section is the highest among SUSYs in the energy-frontier hadron colliders such as Tevatron and the Large Hadron Collider (LHC).[2] The experimental signatures are typically a pair-produced gluinos and their cascade decays. In models of supersymmetry that conserve R-parity, gluinos eventually decay into the undetected lightest super-symmetric particle with many quarks (looking as jets) and the standard model gauge bosons or Higgs bosons. In the R-parity violating scenarios, gluinos can either decay promptly into multiple jets, or be long-lived leaving anomalous sign of "displaced decay vertices" from the interaction point where they are generated.
Though there has been no sign of gluinos observed so far, the strongest limit has been set by LHC (ATLAS/CMS) where up to minimum 1 TeV and maximum 2 TeV in gluino mass has been excluded.[3][4]
Footnotes
As there are eight gluons of different color combinations, there are eight gluinos of different color combinations, too.
Lincoln, Don (2013-07-03). "Supersymmetric glue: the search for gluinos". CERN. cms.web.cern.ch. Retrieved 28 April 2016.
"SupersymmetryPublicResults < AtlasPublic < TWiki". twiki.cern.ch. Retrieved 21 April 2019.
"PhysicsResultsSUS < CMSPublic < TWiki". twiki.cern.ch. Retrieved 21 April 2019.
vte
Particles in physics
Elementary
Fermions
Quarks
Up (quark antiquark) Down (quark antiquark) Charm (quark antiquark) Strange (quark antiquark) Top (quark antiquark) Bottom (quark antiquark)
Leptons
Electron Positron Muon Antimuon Tau Antitau Electron neutrino Electron antineutrino Muon neutrino Muon antineutrino Tau neutrino Tau antineutrino
Bosons
Gauge
Scalar
Hypothetical
Superpartners
Gauginos
Others
Axino Chargino Higgsino Neutralino Sfermion (Stop squark)
Others
Axion Curvaton Dilaton Dual graviton Graviphoton Graviton Inflaton Leptoquark Magnetic monopole Majoron Majorana fermion Dark photon Planck particle Preon Sterile neutrino Tachyon W′ and Z′ bosons X and Y bosons
Nucleon
Proton Antiproton Neutron Antineutron Delta baryon Lambda baryon Sigma baryon Xi baryon Omega baryon
Mesons
Pion Rho meson Eta and eta prime mesons Phi meson J/psi meson Omega meson Upsilon meson Kaon B meson D meson Quarkonium
Exotic hadrons
Others
Atomic nuclei Atoms Exotic atoms
Positronium Muonium Tauonium Onia Pionium Superatoms Molecules
Hypothetical
Baryons
Hexaquark Heptaquark Skyrmion
Mesons
Others
Mesonic molecule Pomeron Diquark R-hadron
Anyon Davydov soliton Dropleton Exciton Hole Magnon Phonon Plasmaron Plasmon Polariton Polaron Roton Trion
Lists
Baryons Mesons Particles Quasiparticles Timeline of particle discoveries
Related
History of subatomic physics
timeline Standard Model
mathematical formulation Subatomic particles Particles Antiparticles Nuclear physics Eightfold way
Quark model Exotic matter Massless particle Relativistic particle Virtual particle Wave–particle duality Particle chauvinism
Wikipedia books
Hadronic Matter Particles of the Standard Model Leptons Quarks
Hellenica World - Scientific Library
Retrieved from "http://en.wikipedia.org/"
All text is available under the terms of the GNU Free Documentation License
