Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 2 of 2 for “"pairproduction"”.
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Novel designs for undulator based positron sources
… photon beam that generates positrons through the pairproduction mechanism. As a helical undulator is used the photon beam is polarised and this results in polarised positrons being produced. This thesis investigates the undulator-based positron source design and aims to optimise it for positron …
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Korrekturen der schwachen Wechselwirkung zur hadronischen Topquark-Paarproduktion
This thesis presents the calculation of the Standard Model weak-interaction corrections of order alpha_s^2 alpha to hadronic top-quark pair production. The one-loop weak corrections to top antitop production due to gluon fusion and uark antiquark annihilation are computed. Also the order alpha_s^2 …