The situation has swayed back after the LEP2 results . The lack of discovery of a Higgs boson below 114 GeV or of any new states has forced supersymmetry into fine - tuning territory , partially undermining its original motivation . Moreover , new theoretical developments , mostly influenced by extra dimensions and by the connection between strongly - interacting gauge theories and gravity on warped geometries , have led the way to the construction of new models of electroweak symmetry breaking [ 1][2][3][4][5][6 ] . Still , the complete replacement of the Higgs sector with strongly - interacting dynamics seemed hard to implement , mostly because of constraints from electroweak data . A more promising approach is to keep the Higgs boson as an effective field arising from new dynamics [ 7,8 ] which becomes strong at a scale not much larger than the Fermi scale . There has been various attempts to realize such scenario , including the Little Higgs [ 2 ] , Holographic Higgs as Goldstone bosons [ 5,6 ] or not [ 9 ] , and other variations .