Gordeli, Ivan2016-08-192016-08-192016-04https://hdl.handle.net/11299/181732University of Minnesota Ph.D. dissertation. April 2016. Major: Physics. Advisor: Arkady Vainshtein. 1 computer file (PDF); iii, 125 pages.In this thesis we complete the singlet glueball sector analysis of the N = 1 super-symmetric Klebanov-Strassler gauge theory. Employing the string theory holographic approach we come up with a prediction of the spectrum of lightest glueballs in SU(N) N = 1 supersymmetric Yang-Mills theory at large N. Interestingly the spectrum of some of the glueballs is consistent with the lattice results for QCD glueballs.enAdS/CFTdualityglueballholographyKlebanov-Strasslerstring theoryThesis or Dissertation