Super symmetry and force carriers: A closer look at the role of fermions

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SUMMARY

The discussion centers on the implications of supersymmetry (SUSY) regarding the relationship between bosons and fermions, specifically addressing whether forces are carried by fermions. It is established that while each boson has a fermion partner, the gauge bosons remain responsible for carrying forces. The conversation highlights the importance of the supersymmetric particle's representation within the gauge group and notes that a supermultiplet of a massive gauge vector boson must include a scalar if SUSY is unbroken or mildly broken.

PREREQUISITES
  • Understanding of supersymmetry (SUSY) principles
  • Familiarity with gauge bosons and fermions
  • Knowledge of gauge groups and their representations
  • Basic concepts of particle physics and supermultiplets
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  • Research the implications of unbroken and broken supersymmetry
  • Study the role of gauge groups in particle physics
  • Explore the concept of supermultiplets in quantum field theory
  • Learn about the relationship between fermions and bosons in SUSY models
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Particle physicists, theoretical physicists, and students studying advanced concepts in quantum field theory and supersymmetry.

Cluelessluke
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Im just starting to learn about super symmetry and I have a question. If super symmetry says ever boson has a fermion partner and we dint introduce new forces, does that mean in the "super symmetry world" that forces are carried by fermions?
 
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No really. The gauge bosons are still there, to carry the forces as usual.

The are some subtleties in the diagrams, of course. The partnership implies that the supersymmetric particle must be in the same representation of the gauge group that the gauge boson. But as you say, it is a fermion, it can not build a classical force field.

Still, the supermultiplet of a massive gauge vector boson should include one scalar, if susy is unbroken, or midly broken.
 

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