Phenomenological studies of top-quark properties at hadron collider


The main goal of the project is to improve our current understanding of top-quark properties using experimental input obtained in hadronic collisions. Top-quark physics is one of the central research topics at the Large Hadron Collider (LHC). Since the project focuses on Standard Model properties of the top quark, a central aspect is to improve the availability of theoretical results within the Standard Model. Furthermore, new observables will be investigated, allowing a more precise determination of top-quark properties within the experimental analysis. In addition, the extension of the so-called matrix element method to include next-to-leading order QCD corrections shall be studied. The precise determination of top-quark properties allows to test the mechanism of electro weak symmetry breaking at
high energies with unprecedented accuracy.

The main goal of the project is to improve our current understanding of top-quark properties using experimental input obtained in hadronic collisions. Top-quark physics is one of the central research topics at the Large Hadron Collider (LHC). Since the project focuses on Standard Model properties of the top quark, a central aspect is to improve the availability of theoretical results within the Standard Model. Furthermore, new observables will be investigated, allowing a more precise determination of top-quark properties within the experimental analysis. In addition, the extension of the so-called matrix element method to include next-to-leading order QCD corrections shall be studied. The precise determination of top-quark properties allows to test the mechanism of electro weak symmetry breaking at
high energies with unprecedented accuracy.

Principal investigators
Uwer, Peter Prof. Dr. rer. nat. (Details) (Theoretical Physics / Phenomenology of Elementary Particles beyond the Standard Model)

Duration of project
Start date: 07/2012
End date: 06/2015

Research Areas
Nuclear and Elementary Particle Physics, Quantum Mechanics, Relativity, Fields

Research Areas
Theoretische Elementarteilchenphysik

Publications
S. Alioli, P. Fernandez, J. Fuster, A. Irles, S.-O. Moch, et al., “A new observable to
measure the top-quark mass at hadron colliders,” Eur.Phys.J. C73 (2013) 2438

S. Alioli, P. Fernández, J. Fuster, A. Irles, S. Moch, et al., “Top-quark mass
measurements at LHC: a new approach,” J.Phys.Conf.Ser. 452 (2013) 012050.

S. Alioli, P. Fernández, J. Fuster, A. Irles, S. Moch, et al., “Top-quark mass
measurements at LHC: a new approach,” J.Phys.Conf.Ser. 452 (2013) 012050.

P. Kant, O. M. Kind, T. Kintscher, T. Lohse, T. Martini, S. Mölbitz, P. Rieck,
and P. Uwer, “HatHor for single top-quark production: Updated predictions and
uncertainty estimates for single top-quark production in hadronic collisions,”
Comput. Phys. Commun. 191 (2015) 74–89

T. Martini and P. Uwer, “Extending the Matrix Element Method beyond the Born
approximation: Calculating event weights at next-to-leading order accuracy,”
JHEP 09 (2015) 083.

J.H. Kühn, A. Scharf, P. Uwer, "Weak Interactions in Top-Quark Pair Production
at Hadron Colliders: An Update", Phys.Rev. D91 (2015) no.1, 014020.

Last updated on 2022-09-09 at 01:07