Spin Correlations in tt Events from pp Collisions
Measured at Vs = 7 TeV in the Lepton+Jets Final State with the ATLAS Detector
1st Edition
Published on 24. June 2015
XXIV, 233 pages
978-3-319-18932-1 (ISBN)
Description
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.
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.
More details
Series
Language
English
Place of publication
Cham
Switzerland
Publishing group
Springer International Publishing
Target group
Professional and scholarly
Product notice
Reflowable
Illustrations
XXIV, 233 p. 112 illus., 9 illus. in color.
File size
11,26 MB
ISBN-13
978-3-319-18932-1 (9783319189321)
DOI
10.1007/978-3-319-18932-1
Schweitzer Classification
Other editions
Additional editions
Boris Lemmer
Spin Correlations in tt Events from pp Collisions
Measured at Vs = 7 TeV in the Lepton+Jets Final State with the ATLAS Detector
Book
07/2015
Springer
€106.99
Shipment within 10-15 days
Person
Boris Lemmer studied physics at the Universities of Gießen and Umeå. He worked within the CrystalBall/TAPS collaboration on the study of in-medium properties of hadrons. For his PhD thesis at the University of Göttingen he joined the ATLAS collaboration and studied the properties of the top quark, which is still his research focus.
Content
Standard Model, Top Quarks and Spin Correlation.- Experimental Setup.- Analysis Objects.- Dataset, Signal and Background Modelling.- Event Selection and Reconstruction.- Analysis Strategy.- Systematic Uncertainties.- Results.- Summary, Conclusion and Outlook.
