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Título : Data-driven background estimation study for stealth supersymmetry searches in events with structure-rich jets and low missing energy in pp collisions at 8 TeV Particle physics
Autor : Carrera, Edgar (dir)
Paredes Sáenz, Santiago Rafael
Descriptores / Subjects : Partículas
Física Nuclear
Simetría
Fecha de Publicación : dic-2015
Ciudad: Editorial : Quito: USFQ, 2015
Cita Sugerida : Tesis (Licenciado en Física), Universidad San Francisco de Quito, Colegio de Ciencias e Ingenierías; Quito, Ecuador, 2015
Descripción : As searches for supersymmetry (SUSY) looking for missing energy have proven unsuccessful so far, SUSY models that allow low, or non, missing energy, like stealth supersymmetry, have acquired increasing interest. A data-driven background estimation was performed for a stealth supersymmetry signal with four jets and low missing energy in the nail state. As part of this process, stealth SUSY events were generated via software and later studied. Data from the CMS experiment of pp collisions at ps = 8 TeV and 21.79 fb􀀀1 were analyzed. The close agreement between the estimated background distributions and true background from data suggests that this technique, and the variable thresholds that were de_ned in this work, would provide an appropriate representation of the background events which mimic the squark decay under study.
URI : http://repositorio.usfq.edu.ec/handle/23000/5648
Aparece en las colecciones: Tesis - Física

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