Theoretical Physics Seminar: Andras Laszlo

  • Datum: –15.00
  • Plats: Polacksbacken 2247, ITC
  • Föreläsare: Andras Laszlo
  • Arrangör: Vladimir Procházka
  • Kontaktperson: Vladimir Procházka
  • Seminarium

A possible alternative mechanism to SUSY: conservative extensions of the Poincaré group

In this talk a mathematical argument is outlined, showing that even without the field theoretical context of the Coleman-Mandula theorem, the Lie group theoretical possibilities for unification of a compact internal symmetry group with the Poincaré symmetry group of the spacetime are rather limited. From the Lie group theoretical arguments, however, it shall be seen that there are some backdoors to these no-go arguments. SUSY, for example, is possible because of these backdoors. In the talk we will show a non-SUSY unified compact + Poincaré group, using these backdoors. The price to pay in case of the pertinent mechanism is to allow also a nilpotent internal symmetry group in addition. Its analogies to SUSY as well as some possible field theoretical implications will be also addressed.