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Top-quark pair production cross sect...

Kieseler, Jan.

Top-quark pair production cross sections and calibration of the top-quark Monte-Carlo massmeasurements performed with the CMS detector using LHC run I Proton-Proton collision data /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Top-quark pair production cross sections and calibration of the top-quark Monte-Carlo massby Jan Kieseler.
Reminder of title:	measurements performed with the CMS detector using LHC run I Proton-Proton collision data /
Author:	Kieseler, Jan.
Published:	Cham :Springer International Publishing :2016.
Description:	xiii, 167 p. :ill., digital ;24 cm.
Contained By:	Springer eBooks
Subject:	Quarks.
Online resource:	http://dx.doi.org/10.1007/978-3-319-40005-1
ISBN:	9783319400051$q(electronic bk.)

Top-quark pair production cross sections and calibration of the top-quark Monte-Carlo massmeasurements performed with the CMS detector using LHC run I Proton-Proton collision data /
Kieseler, Jan.

Top-quark pair production cross sections and calibration of the top-quark Monte-Carlo massmeasurements performed with the CMS detector using LHC run I Proton-Proton collision data /[electronic resource] :by Jan Kieseler. - Cham :Springer International Publishing :2016. - xiii, 167 p. :ill., digital ;24 cm. - Springer theses,2190-5053. - Springer theses..

Introduction -- Top Quark Production and Decay in Proton-Proton Collisions -- The LHC and the CMS Experiment -- Event Reconstruction and Selection -- Measurement of the Top-Quark Pair Production Cross Section -- Extraction of the Top-Quark Mass -- Calibration of the Top-Quark Monte-Carlo Mass -- Summary and Conclusions.

This thesis presents the first experimental calibration of the top-quark Monte-Carlo mass. It also provides the top-quark mass-independent and most precise top-quark pair production cross-section measurement to date. The most precise measurements of the top-quark mass obtain the top-quark mass parameter (Monte-Carlo mass) used in simulations, which are partially based on heuristic models. Its interpretation in terms of mass parameters used in theoretical calculations, e.g. a running or a pole mass, has been a long-standing open problem with far-reaching implications beyond particle physics, even affecting conclusions on the stability of the vacuum state of our universe. In this thesis, this problem is solved experimentally in three steps using data obtained with the compact muon solenoid (CMS) detector. The most precise top-quark pair production cross-section measurements to date are performed. The Monte-Carlo mass is determined and a new method for extracting the top-quark mass from theoretical calculations is presented. Lastly, the top-quark production cross-sections are obtained - for the first time - without residual dependence on the top-quark mass, are interpreted using theoretical calculations to determine the top-quark running- and pole mass with unprecedented precision, and are fully consistently compared with the simultaneously obtained top-quark Monte-Carlo mass.

ISBN: 9783319400051$q(electronic bk.)

Standard No.: 10.1007/978-3-319-40005-1doiSubjects--Topical Terms:

250453
Quarks.

LC Class. No.: QC793.5.Q252

Dewey Class. No.: 539.72167

Top-quark pair production cross sections and calibration of the top-quark Monte-Carlo massmeasurements performed with the CMS detector using LHC run I Proton-Proton collision data /
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520 $a This thesis presents the first experimental calibration of the top-quark Monte-Carlo mass. It also provides the top-quark mass-independent and most precise top-quark pair production cross-section measurement to date. The most precise measurements of the top-quark mass obtain the top-quark mass parameter (Monte-Carlo mass) used in simulations, which are partially based on heuristic models. Its interpretation in terms of mass parameters used in theoretical calculations, e.g. a running or a pole mass, has been a long-standing open problem with far-reaching implications beyond particle physics, even affecting conclusions on the stability of the vacuum state of our universe. In this thesis, this problem is solved experimentally in three steps using data obtained with the compact muon solenoid (CMS) detector. The most precise top-quark pair production cross-section measurements to date are performed. The Monte-Carlo mass is determined and a new method for extracting the top-quark mass from theoretical calculations is presented. Lastly, the top-quark production cross-sections are obtained - for the first time - without residual dependence on the top-quark mass, are interpreted using theoretical calculations to determine the top-quark running- and pole mass with unprecedented precision, and are fully consistently compared with the simultaneously obtained top-quark Monte-Carlo mass.
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