Top Quark Pair Production Cross Section In The Lepton Jets Channel Using B Tagging At Do
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Top Quark Physics At Hadron Colliders
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Author : Arnulf Quadt
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-08-16
Top Quark Physics At Hadron Colliders written by Arnulf Quadt 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 2007-08-16 with Science categories.
This will be a required acquisition text for academic libraries. More than ten years after its discovery, still relatively little is known about the top quark, the heaviest known elementary particle. This extensive survey summarizes and reviews top-quark physics based on the precision measurements at the Fermilab Tevatron Collider, as well as examining in detail the sensitivity of these experiments to new physics. Finally, the author provides an overview of top quark physics at the Large Hadron Collider.
Top Quark Pair Production
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Author : Anna Christine Henrichs
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-10-04
Top Quark Pair Production written by Anna Christine Henrichs 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 2013-10-04 with Science categories.
Before any kind of new physics discovery could be made at the LHC, a precise understanding and measurement of the Standard Model of particle physics' processes was necessary. The book provides an introduction to top quark production in the context of the Standard Model and presents two such precise measurements of the production of top quark pairs in proton-proton collisions at a center-of-mass energy of 7 TeV that were observed with the ATLAS Experiment at the LHC. The presented measurements focus on events with one charged lepton, missing transverse energy and jets. Using novel and advanced analysis techniques as well as a good understanding of the detector, they constitute the most precise measurements of the quantity at that time.
Top Quark Pair Production Cross Section In The Lepton Jets Channel Using B Tagging At Do
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Author : Hwidong Yoo
language : en
Publisher:
Release Date : 2008
Top Quark Pair Production Cross Section In The Lepton Jets Channel Using B Tagging At Do written by Hwidong Yoo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
The top quark pair production cross section measurement in the lepton+jets channel with b-tagging algorithm is described. About 900 pb-1 data collected by the DO detector at the Fermilab Tevatron are used for this analysis. In this thesis, event selection, background estimation, and cross section calculation are discussed in detail. In addition, calibration of the Luminosity Monitor readout electronics and a new b-tagging algorithm, the SLTNN tagger, are also discussed in this thesis.
Top Quark Pair Production Cross Sections And Calibration Of The Top Quark Monte Carlo Mass
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Author : Jan Kieseler
language : en
Publisher: Springer
Release Date : 2016-06-15
Top Quark Pair Production Cross Sections And Calibration Of The Top Quark Monte Carlo Mass written by Jan Kieseler and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-06-15 with Science categories.
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.
Fundamental Interactions Proceedings Of The 23rd Lake Louise Winter Institute 2008
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Author : Alan Astbury
language : en
Publisher: World Scientific
Release Date : 2009-09-03
Fundamental Interactions Proceedings Of The 23rd Lake Louise Winter Institute 2008 written by Alan Astbury and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-09-03 with Science categories.
This book contains pedagogical lectures on both theoretical and experimental particle physics, cosmology, and atomic trap physics. Numerous additional contributions provide up-to-date information on new experimental results from accelerators, underground laboratories, and nuclear astrophysics. This combination of pedagogical talks and topical short discussions presents a comprehensive amount of information and latest developments to researchers.
Fundamental Interactions
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Author : Alan Astbury
language : en
Publisher: World Scientific
Release Date : 2009
Fundamental Interactions written by Alan Astbury and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Science categories.
This book contains pedagogical lectures on both theoretical and experimental particle physics, cosmology, and atomic trap physics. Numerous additional contributions provide up-to-date information on new experimental results from accelerators, underground laboratories, and nuclear astrophysics. This combination of pedagogical talks and topical short discussions presents a comprehensive amount of information and latest developments to researchers.
98 Electroweak Interactions And Unified Theories
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Author : Jean Thanh Vân Trâǹ
language : en
Publisher: Atlantica Séguier Frontières
Release Date : 1999
98 Electroweak Interactions And Unified Theories written by Jean Thanh Vân Trâǹ and has been published by Atlantica Séguier Frontières this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.
Top Quark Pair Production Cross Section In The Lepton Jets Channel Using B Tagging At
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Author :
language : en
Publisher:
Release Date : 2008
Top Quark Pair Production Cross Section In The Lepton Jets Channel Using B Tagging At written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
The top quark pair production cross section measurement in the lepton+jets channel with b-tagging algorithm is described. About 900 pb−1 data collected by the D0 detector at the Fermilab Tevatron are used for this analysis. In this thesis, event selection, background estimation, and cross section calculation are discussed in detail. In addition, calibration of the Luminosity Monitor readout electronics and a new b-tagging algorithm, the SLTNN tagger, are also discussed in this thesis.
Search For Tt H Production In The H Bb Decay Channel
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Author : Marcel Rieger
language : en
Publisher: Springer Nature
Release Date : 2021-02-25
Search For Tt H Production In The H Bb Decay Channel written by Marcel Rieger and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-02-25 with Science categories.
In 1964, a mechanism explaining the origin of particle masses was proposed by Robert Brout, François Englert, and Peter W. Higgs. 48 years later, in 2012, the so-called Higgs boson was discovered in proton-proton collisions recorded by experiments at the LHC. Since then, its ability to interact with quarks remained experimentally unconfirmed. This book presents a search for Higgs bosons produced in association with top quarks tt̄H in data recorded with the CMS detector in 2016. It focuses on Higgs boson decays into bottom quarks H → bb̅ and top quark pair decays involving at least one lepton. In this analysis, a multiclass classification approach using deep learning techniques was applied for the first time. In light of the dominant background contribution from tt̄ production, the developed method proved to achieve superior sensitivity with respect to existing techniques. In combination with searches in different decay channels, the presented work contributed to the first observations of tt̄H production and H → bb̅ decays.
Eps High Energy Physics 95 Proceedings Of The International Europhysics Conference
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Author : Catherine Vander Velde
language : en
Publisher: World Scientific
Release Date : 1996-05-28
Eps High Energy Physics 95 Proceedings Of The International Europhysics Conference written by Catherine Vander Velde and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-05-28 with categories.