Essays about: "QFT"

Showing result 11 - 15 of 16 essays containing the word QFT.

  1. 11. Anomalous Dimensions in the WF O(N) Model with a Monodromy Line Defect

    University essay from Uppsala universitet/Teoretisk fysik

    Author : Alexander Söderberg; [2017]
    Keywords : Anomalous Dimensions; WF; O N Model; phi^4 theory; Monodromy Line Defect; Co-Dimension Two; 3 Dimensions; CFT; 3D; Dimensional; Conformal Field Theory; Quantum Field Theory; QFT;

    Abstract : General ideas in the conformal bootstrap program are covered. Both numerical and analytical approaches to the bootstrap equation are reviewed to show how it can be manipulated in different ways. Further analytical approaches are studied for theories with defects. READ MORE

  3. 12. Browsing the Web of Amplitudes

    University essay from Uppsala universitet/Teoretisk fysik

    Author : Alexander Söderberg; [2016]
    Keywords : amplitude; amplitudes; relation; relations; browsing; web; bcj; kk; double; copy; zeroth; klt; single; valued; projection; quantum; field; theory; qft; string; type; I; II; heterotic;

    Abstract : We begin by studying field-theory amplitude relations such as the Kleiss-Kuijf, Bern-Carrasco-Johansson, Kawai-Lewellen-Tye and the double copy construction, which are important ingredients in this thesis. Going beyond the field-theory limit we study how the gauge-sector of the heterotic string relates to type I amplitudes through the single valued projection of multiple zeta values. READ MORE

  4. 13. Scalar Theory as an example of AdS/QFT

    University essay from Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Author : Erik Gustafsson; [2014]
    Keywords : AdS; QFT; Scalar Theory; AdS correspondence; Physics and Astronomy;

    Abstract : We take a look at the properties of scalar fields in anti--de--Sitter space in five dimensions. More specifically we define bulk--to--boundary and bulk--to--bulk propagators for a five--dimensional scalar field and use these to calculate four--point functions. READ MORE

  5. 14. Search for Dark Matter in the Upgraded High Luminosity LHC at CERN : Sensitivity of ATLAS phase II upgrade to dark matter production

    University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi; Linköpings universitet/Tekniska högskolan

    Author : Sven-Patrik Hallsjö; [2014]
    Keywords : ATLAS; Beyond standard model physics; CERN; Dark matter; Effective operator; Elementary particle physics; High energy physics; Mono-jet analysis; Vector mediator; WIMPS;

    Abstract : The LHC at CERN is now undergoing a set of upgrades to increase the center of mass energy for the colliding particles to be able to explore new physical processes. The focus of this thesis lies on the so called phase II upgrade which will preliminarily be completed in 2023. READ MORE

  6. 15. Comparison of QuantiFERON®TB Gold with tuberculin skin test to improve diagnostics and routine screening for tuberculosis infection among newly arrived asylum seekers to Norway

    University essay from Nordiska ministerrådet/Nordic School of Public Health NHV

    Author : Brita Askeland Winje; [2008]
    Keywords : Tuberculosis; Screening; Tuberculin Skin Test; QuantiFERON®TB Gold; Tuberkulose; screening; tuberkulin hudtest; QuantiFERON®TB Gold;

    Abstract : Introduksjon: QuantiFERON®TB Gold (QFT) er en ny blodtest for påvisning av tuberkulosesmitte, men med få data så langt fra undersøkelse av immigranter. Målet med studien var å sammenligne resultat av QFT og tuberkulin hudtest blant nyankomne asylsøkere i Norge og å vurdere hvilken rolle QFT bør ha i screening for latent tuberkulose. READ MORE