Cms Pixel Detector Upgrade And Top Quark Pole Mass Determination
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Cms Pixel Detector Upgrade And Top Quark Pole Mass Determination
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Author : Simon Spannagel
language : en
Publisher: Springer
Release Date : 2017-08-01
Cms Pixel Detector Upgrade And Top Quark Pole Mass Determination written by Simon Spannagel and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-01 with Science categories.
This thesis addresses two different topics, both vital for implementing modern high-energy physics experiments: detector development and data analysis. Providing a concise introduction to both the standard model of particle physics and the basic principles of semiconductor tracking detectors, it presents the first measurement of the top quark pole mass from the differential cross-section of tt+J events in the dileptonic tt decay channel. The first part focuses on the development and characterization of silicon pixel detectors. To account for the expected increase in luminosity of the Large Hadron Collider (LHC), the pixel detector of the compact muon solenoid (CMS) experiment is replaced by an upgraded detector with new front-end electronics. It presents comprehensive test beam studies conducted to verify the design and quantify the performance of the new front-end in terms of tracking efficiency and spatial resolution. Furthermore, it proposes a new cluster interpolation method, which utilizes the third central moment of the cluster charge distribution to improve the position resolution. The second part of the thesis introduces an alternative measurement of the top quark mass from the normalized differential production cross-sections of dileptonic top quark pair events with an additional jet. The energy measurement is 8TeV. Using theoretical predictions at next-to-leading order in perturbative Quantum Chromodynamics (QCD), the top quark pole mass is determined using a template fit method.
Chemical Abstracts
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Author :
language : en
Publisher:
Release Date :
Chemical Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Chemistry categories.
The Large Hadron Collider
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Author : Lyndon R. Evans
language : en
Publisher: EPFL Press
Release Date : 2009-01-01
The Large Hadron Collider written by Lyndon R. Evans and has been published by EPFL Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-01-01 with Hadron colliders categories.
Describes the technology and engineering of the Large Hadron collider (LHC), one of the greatest scientific marvels of this young 21st century. This book traces the feat of its construction, written by the head scientists involved, placed into the context of the scientific goals and principles.
Cosmoparticle Physics
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Author : Maxim Yu Khlopov
language : en
Publisher: World Scientific
Release Date : 1999
Cosmoparticle Physics written by Maxim Yu Khlopov and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Science categories.
Since the 1980s the cross-disciplinary, multidimensional field of links between cosmology and particle physics has been widely recognised by theorists, studying cosmology, particle and nuclear physics, gravity, as well as by astrophysicists, astronomers, space physicists, experimental particle and nuclear physicists, mathematicians and engineers.The relationship between cosmology and particle physics is now one of the important topics of discussion at any scientific meeting both on astrophysics and high energy physics.Cosmoparticle physics is the result of the mutual relationship between cosmology and particle physics in their search for physical mechanisms of inflation, baryosynthesis, nonbaryonic dark matter, and for fundamental unity of the natural forces underlying them. The set of nontrivial links between cosmological consequences of particle models and the astrophysical data on matter and radiation in the modern universe maintains cosmoarcheology, testing self-consistently particular predictions of particle models on the base of cosmological scenarios, following from them. Complex analysis of all the indirect cosmological, astrophysical and microphysical phenomena makes cosmoparticle physics the science of the world and renders quantitatively definite the correspondence between its micro- and macroscopic structure.This book outlines the principal ideas of the modern particle theory and cosmology, their mutual relationship and the nontrivial correspondence of their physical and astrophysical effects.
Nuclear And Particle Physics
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Author : C. Amsler
language : en
Publisher:
Release Date : 2015
Nuclear And Particle Physics written by C. Amsler and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Nuclear physics categories.
This book provides an introductory course on Nuclear and Particle physics for undergraduate and early-graduate students, which the author has taught for several years at the University of Zurich. It contains fundamentals on both nuclear physics and particle physics. Emphasis is given to the discovery and history of developments in the field, and is experimentally/phenomenologically oriented. It contains detailed derivations of formulae such as 2- 3 body phase space, the Weinberg-Salam model, and neutrino scattering. Originally published in German as 'Kern- und Teilchenphysik', several sections have been added to this new English version to cover very modern topics, including updates on neutrinos, the Higgs boson, the top quark and bottom quark physics. - Prové de l'editor.
Experimental Particle Physics
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Author : Deepak Kar
language : en
Publisher:
Release Date : 2019
Experimental Particle Physics written by Deepak Kar and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Large Hadron Collider (France and Switzerland) categories.
"This book is written for advanced undergraduate or beginning postgraduate student starting data analysis in experimental particle physics, more specifically at the Large Hadron Collider (LHC) at CERN. Only assuming basic knowledge of quantum mechanics and special relativity, it recaps the current state of affairs in particle physics, before comprehensively introducing all the ingredients that go into an analysis. Including how each we go from electronic signals in the detectors to visualising what particles were produced in a collision, and how we determine if that is consistent with Standard Model predictions or indicate the presence of yet unseen particles. The results are usually represented in what we call plots, and the book ensures students can understand what goes into the making of the plots, and how to interpret them." -- Prové de l'editor.
First Measurement Of The Running Of The Top Quark Mass
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Author : Matteo M. Defranchis
language : en
Publisher: Springer Nature
Release Date : 2022-01-03
First Measurement Of The Running Of The Top Quark Mass written by Matteo M. Defranchis and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-01-03 with Science categories.
In this thesis, the first measurement of the running of the top quark mass is presented. This is a fundamental quantum effect that had never been studied before. Any deviation from the expected behaviour can be interpreted as a hint of the presence of physics beyond the Standard Model. All relevant aspects of the analysis are extensively described and documented. This thesis also describes a simultaneous measurement of the inclusive top quark-antiquark production cross section and the top quark mass in the simulation. The measured cross section is also used to precisely determine the values of the top quark mass and the strong coupling constant by comparing to state-of-the-art theoretical predictions. All the theoretical and experimental aspects relevant to the results presented in this thesis are discussed in the initial chapters in a concise but complete way, which makes the material accessible to a wider audience.
Top Quark Mass Measurement In The Lepton Jets Channel Using Full Simulation Of The Cms Detector
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Author : Stefan Kasselmann
language : en
Publisher:
Release Date : 2007
Top Quark Mass Measurement In The Lepton Jets Channel Using Full Simulation Of The Cms Detector written by Stefan Kasselmann and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
Study Of The Inclusive Beauty Production At Cms And Construction And Commissioning Of The Cms Pixel Barrel Detector
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Author : Lea Caminada
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-02-23
Study Of The Inclusive Beauty Production At Cms And Construction And Commissioning Of The Cms Pixel Barrel Detector written by Lea Caminada and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-02-23 with Science categories.
This thesis describes one of the first measurements at the CERN LHC -- the world's largest and highest-energy particle collider. The CMS collision data is analyzed, and results in the first measurement of the inclusive b cross section using semileptonic decays at a center of mass energy of 7 TeV.
Measurement Of Boosted Differential Top Quark Pair Production Cross Section At 13 Tev With The Cms Detector
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Author : Susan J. Dittmer
language : en
Publisher:
Release Date : 2017
Measurement Of Boosted Differential Top Quark Pair Production Cross Section At 13 Tev With The Cms Detector written by Susan J. Dittmer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
This thesis describes a measurement of the differential top quark pair production cross section for top quarks with high transverse momentum (pt) in proton-proton collisions at a center-of-mass energy of 13 TeV. The measurement is performed using data collected by the CMS experiment during the 2016 data-taking period, corresponding to an integrated luminosity of 35.9 fb-1. The measurement is performed using events where one top quark decays hadronically and is reconstructed as a single large-radius t jet with pt > 400 GeV, while the other top quark decays leptonically to a b jet, an electron or a muon, and a neutrino. Jet substructure techniques are used to identify the large-radius jet as a t jet candidate. The measurement demonstrates that current simulations overpredict the rate of top quark pair production at high pt, providing valuable feedback on the accuracy of current simulation.