Gluino

In particle physics , gluinos are the hypothetical supersymmetric partners of gluons . ${\displaystyle {\tilde {g}}}$ ${\displaystyle g\!\,}$

properties

Gluinos are Majorana fermions , i. H. electrically neutral elementary particles with half-integer spin , more precisely: with a spin of 1/2. As an octet of color charges , they are subject to strong interaction . Since there are 8 different gluons (color combinations), there are also 8 different gluinos. Gluinos have the lepton number  0 and the baryon number  0.

Postulated observations

Pair production of gluinos in particle accelerators such as the Large Hadron Collider (LHC) is expected . The two gluinos should each decay into a quark and a squark by means of strong interaction , assuming favorable mass ratios . The two squarks in turn would then each decay into a different quark and the lightest supersymmetric particle (LSP). The latter would leave the detector unnoticed. This means that four jets (for 2x2 quarks) and a lack of energy would be a typical signal for a gluinopair at the LHC.

However, if the gluinos are lighter than the squarks, then a three-particle decay of a gluino into a neutral and a quark-antiquark pair would be kinematically possible with the help of an off-shell squark .