Light stop and fine-tuning in susy models

Thesis Type: Postgraduate

Institution Of The Thesis: Bursa Uludağ University, Fen Bilimleri Enstitüsü, Turkey

Approval Date: 2017

Thesis Language: Turkish

Student: Ali Çiçi

Supervisor: ZERRİN KIRCA


The current experimental results bound the stop mass at about 700 GeV from below, although such bounds can vary depending on different decay modes. In this study, we consider the solutions, which yield stop particles lighter than 700 GeV at the low scale. We discuss the fine-tuning problem over such solutions and highlight the regions of the fundamental parameter space, which provide a solution to the fine-tuning problem. After following detailed discussions, we compare our results with the experimental results. We conclude our study that even though the stop particles are lighter than 700 GeV, they can still escape from the detection, and thus, such solutions cannot still be excluded by the experiments.