student profile: Carl Suster


Thesis work

Thesis title: Cross-section measurements of single top quarks in the dilepton final state in pp collisions with the ATLAS detector

Supervisors: Bruce YABSLEY , Kevin VARVELL

Thesis abstract:

The top quark is the most massive fundamental particle within the Standard Model of particle physics, discovered at Fermilab in 1995. Uniquely among the quarks it decays before hadronising, and its high mass suggests it plays a role in the mechanism of electroweak symmetry breaking. The top quark is produced in abundance at the Large Hadron Collider at CERN, offering the first opportunity to explore its properties in rare decay modes in detail. This research focuses on measurements of the production cross-section of single top quarks in association with W bosons, collected in the dilepton final state from pp collisions at 13 TeV centre-of-mass energy using the ATLAS detector. By comparing detailed predictions made with the Standard Model to observations a search is performed for evidence of new physics that is not explained by existing models.

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