Top-quark pair production cross sect...
Kieseler, Jan.

 

  • Top-quark pair production cross sections and calibration of the top-quark Monte-Carlo mass[electronic resource] :measurements performed with the CMS detector using LHC run I Proton-Proton collision data /
  • 紀錄類型: 書目-電子資源 : Monograph/item
    杜威分類號: 539.72167
    書名/作者: Top-quark pair production cross sections and calibration of the top-quark Monte-Carlo mass : measurements performed with the CMS detector using LHC run I Proton-Proton collision data // by Jan Kieseler.
    作者: Kieseler, Jan.
    出版者: Cham : : Springer International Publishing :, 2016.
    面頁冊數: xiii, 167 p. : : ill., digital ;; 24 cm.
    Contained By: Springer eBooks
    標題: Quarks.
    標題: Quantum chromodynamics.
    標題: Physics.
    標題: Elementary Particles, Quantum Field Theory.
    標題: Quantum Field Theories, String Theory.
    ISBN: 9783319400051
    ISBN: 9783319400044
    內容註: 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.
    摘要、提要註: 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.
    電子資源: http://dx.doi.org/10.1007/978-3-319-40005-1
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