So under loop corrections the coupling constant will change according to 1 loop

So under loop corrections the coupling constant will

This preview shows page 125 out of 125 pages.

. So under loop corrections the coupling constant will change according to 1-loop β -functions, and the Kahler potential can be changed, but no other. Specifically W is not changed. So at tree level there is no SUSY breaking if we have ∂W/∂ Φ = 0 has no solution, and we know that this statement is true for all orders of perturbation theory. But non-perturbatively the instantons can break SUSY because we can add F ˜ F terms to the Lagrangian and the above X X + symmetry doesn’t work. 125
Image of page 125

You've reached the end of your free preview.

Want to read all 125 pages?

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture