/sci/ - Science & Math

Thanks for answering the question on supersymmetry.

Does the cancelation (leading to a low mass) take place because when you compute the quantum corrections to it, having many (supersymmetric) partners means that in the pertubation expansion I will take them into account "at the same time" and then some signs flip so that the value stays low?
Alla geeting a factor
1+a+b+(-a)+b^2+(-b)+... \sim 1+\epsilon
where apriori many terms are there, but then actually not?

Secondly, do you have some list/classification of supersymmetric theories?

Lastly, if you're still at cern, what theories do people there definitely consider to be ruled out by now?
Especially regarding the (formally) popular candidates.