Dutta, B (reprint author), Texas A&M Univ, George P & Cynthia W Mitchell Inst Fundamental Ph, College Stn, TX 77843 USA.
In supersymmetric models with gluinos m((g) over tilde) similar to 1000-2000 GeV, new physics searches based on cascade decay products of the gluino are viable at the next run of the LHC. We investigate a scenario where the light stop is lighter than the gluino and both are lighter than all other squarks, and show that its signal can be established using multi b-jet, multi W and/or multi-lepton final state topologies. We then utilize both boosted and conventional jet topologies in the final state in conjunction with di-tau production as a probe of the stau-neutralino coannihilation region responsible for the model's dark matter content. This study is performed in the specific context of one such phenomenologically viable model named no-scale F-SU(5).
; NSF Award [PHY-1206044]
; Natural Science Foundation of China [10821504, 11075194, 11135003, 11275246, 11475238]
; National Basic Research Program of China (973 Program) [2010CB833000]
; NASA Astrophysics Theory Grant [NNH12ZDA001N]
; Sam Houston State University Enhancement Research Grant program