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Spin correlations in tt[bar] events from pp collisions [electronic resource] : measured at √s = 7 TeV in the lepton+jets final state with the ATLAS detector / Boris Lemmer.

9783319189321 electronic book
3319189328 electronic book
9783319189314

Cham : Springer, 2015.

English

1 online resource : color illustrations.

QC793.5.P724

539.7/25

This thesis introduces readers to the Standard Model, the top quark and its properties, before explaining the concept of spin correlation measurement. The first measurement of top quark spin correlations at the LHC in the lepton+jets decay channel is presented. As the heaviest elementary particle, the top quark plays an essential role in the Standard Model of elementary particle physics. In the case of top quarks being produced in pairs at hadron colliders, the Standard Model predicts their spins to be correlated. The degree of correlation depends on both the production mechanism and properties of the top quark. Any deviation from the Standard Model prediction can be an indicator for new physics phenomena. The thesis employs an advanced top quark reconstruction algorithm including dedicated identification of the up- and down-type quarks from the W boson decay.

Supervisor: Arnault Quadt.
Includes vita.

Ph. D. University of Göttingen, Germany 2015.

Includes bibliographical references and index.

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Online resource; title from PDF title page (viewed June 29, 2015).

Springer theses.

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