Sökning: "stop and search"

Visar resultat 1 - 5 av 25 avhandlingar innehållade orden stop and search.

  1. 1. Search for Pair-Produced Supersymmetric Top Quark Partners with the ATLAS Experiment

    Författare :Yiming Abulaiti; Sara Strandberg; Kerstin Jon-And; Isabell Melzer-Pellmann; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ATLAS; supersymmetry; SUSY; Beyond Standard Model; stop; pMSSM; Large Hadron Collider; LHC; CERN; fysik; Physics;

    Sammanfattning : Searches for the supersymmetric partner of the top quark (stop) are motivated by natural supersymmetry, where the stop has to be light to cancel the large radiative corrections to the Higgs boson mass. This thesis presents three different searches for the stop at √s = 8 TeV and √s = 13 TeV using data from the ATLAS experiment at CERN’s Large Hadron Collider. LÄS MER

  3. 2. Search-Based Prediction of Software Quality : Evaluations and Comparisons

    Författare :Wasif Afzal; IS (Embedded Systems); []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Software verification and validation (V&V) activities are critical for achieving software quality; however, these activities also constitute a large part of the costs when developing software. Therefore efficient and effective software V&V activities are both a priority and a necessity considering the pressure to decrease time-to-market and the intense competition faced by many, if not all, companies today. LÄS MER

  4. 3. Race and Order : Critical Perspectives on Crime in Sweden

    Författare :Leandro Schclarek Mulinari; Anita Heber; Felipe Estrada; Benjamin Bowling; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Law and order; ideology; repression; racialization of crime; racial profiling; migration control; stop and search; Anti-terrorism measures; kriminologi; Criminology;

    Sammanfattning : In this study questions of crime are used as a means to explore the relation between race and the social order. The aim is to empirically and theoretically expand the criminological understanding of racism as a structural phenomenon. LÄS MER

  5. 4. Models and Metaheuristics for Real-World Applications of Location and Vehicle Routing Problems

    Författare :Marduch Tadaros; Athanasios Migdalas; Ioannis Marinakis; Björn Samuelsson; Sergiy Butenko; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Vehicle Routing; Facility Location; Metaheuristics; Supply Chain Network Design; Kvalitetsteknik och logistik; Quality Technology and Logistics;

    Sammanfattning : The supply chain's underlying infrastructure affects the efficiency and design of distribution routes. As such infrastructure is associated with substantial capital investments, it is crucial to consider the network design and the location of various facilities. LÄS MER

  7. 5. Search for Stop Using the ATLAS Detector and Performance Analysis of the Tile Calorimeter with Muons from W Decays

    Författare :Stefio Yosse Andrean; Christophe Clement; Joakim Edsjö; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; particle physics; standard model; bsm; supersymmetry; stop; calorimeter; ATLAS; fysik; Physics;

    Sammanfattning : This thesis presents a search for the supersymmetric partner of the top quark in the final state with one lepton. The search focuses especially in the region of the parameter space where the 2-body decay dominates. The analysis is performed using LHC full Run 2 data at √s = 13 TeV as recorded by the ATLAS detector. LÄS MER