Search For The Standard Model Higgs Boson Produced In Association With Tt And Decaying Into Bb At 8 Tev With The Atlas Detector Using The Matrix Element Method
DOWNLOAD
Download Search For The Standard Model Higgs Boson Produced In Association With Tt And Decaying Into Bb At 8 Tev With The Atlas Detector Using The Matrix Element Method PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Search For The Standard Model Higgs Boson Produced In Association With Tt And Decaying Into Bb At 8 Tev With The Atlas Detector Using The Matrix Element Method book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Search For Tt H Production In The H Bb Decay Channel
DOWNLOAD
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.
The Higgs Boson Produced With Top Quarks In Fully Hadronic Signatures
DOWNLOAD
Author : Daniel Salerno
language : en
Publisher: Springer Nature
Release Date : 2019-10-25
The Higgs Boson Produced With Top Quarks In Fully Hadronic Signatures written by Daniel Salerno and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-10-25 with Science categories.
The work presented in this PhD dissertation is the first search at CMS for Higgs bosons produced in association with top quarks (ttH) in a final state consisting of only jets. The results presented in this book uncover a new class of ttH events that will help us elucidate our understanding of the Yukawa sector interactions between the Higgs boson and the top quark. Despite this being the most common decay signature for ttH, a large contamination of SM backgrounds makes it the most challenging for extracting a signal from data. The PhD thesis presents many sophisticated tools and techniques that were developed in order to overcome these challenges. These tools pave the way for future analyses to investigate other standard model and beyond-standard model physics.
Search For New Phenomena In Top Antitop Quarks Final States With Additional Heavy Flavour Jets With The Atlas Detector
DOWNLOAD
Author : Daiki Yamaguchi
language : en
Publisher: Springer Nature
Release Date : 2019-10-30
Search For New Phenomena In Top Antitop Quarks Final States With Additional Heavy Flavour Jets With The Atlas Detector written by Daiki Yamaguchi and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-10-30 with Science categories.
This book reports on the search for a new heavy particle, the Vector-Like Top quark (VLT), in the Large Hadron Collider (LHC) at CERN. The signal process is the pair production of VLT decaying into a Higgs boson and top quark (TT→Ht+X, X=Ht, Wb, Zt). The signal events result in top–antitop quarks final states with additional heavy flavour jets. The book summarises the analysis of the data collected with the ATLAS detector in 2015 and 2016. In order to better differentiate between signals and backgrounds, exclusive taggers of top quark and Higgs boson were developed and optimised for VLT signals. These efforts improved the sensitivity by roughly 30%, compared to the previous analysis. The analysis outcomes yield the strongest constraints on parameter space in various BSM theoretical models. In addition, the book addresses detector operation and the evaluation of tracking performance. These efforts are essential to properly collecting dense events and improving the accuracy of the reconstructed objects that are used for particle identification. As such, they represent a valuable contribution to data analysis in extremely dense environments.
Search For Flavor Changing Neutral Current Top Quark Decays T Hq With H Bb In Pp Collisions At S 8 Tev With The Atlas Detector
DOWNLOAD
Author : Shota Tsiskaridze
language : en
Publisher: Springer
Release Date : 2017-08-02
Search For Flavor Changing Neutral Current Top Quark Decays T Hq With H Bb In Pp Collisions At S 8 Tev With The Atlas Detector written by Shota Tsiskaridze and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-02 with Science categories.
This PhD thesis focuses on the search for flavor-changing neutral currents in the decay of a top quark to an up-type quark (q = u, c) and the Standard Model Higgs boson, where the Higgs boson decays to bb. Further, the thesis presents the combination of this search for top quark pair events with other ATLAS searches – in the course of which the most restrictive bounds to date on tqH interactions were obtained. Following on from the discovery of the Higgs boson, it is particularly important to measure the Yukawa couplings of the Standard Model fermions; these parameters may provide crucial insights to help solve the flavor puzzle and may help reveal the presence of new physics before it is directly observed in experiments.
Search For The Standard Model Higgs Boson Produced In Association With Tt And Decaying Into Bb At 8 Tev With The Atlas Detector Using The Matrix Element Method
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2015
Search For The Standard Model Higgs Boson Produced In Association With Tt And Decaying Into Bb At 8 Tev With The Atlas Detector Using The Matrix Element Method written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
A search for the Standard Model Higgs boson produced in association with a pair of top quarks (ttH) is presented. The analysis uses 20.3 fb-1 of pp collision data at √s = 8 TeV, collected with the ATLAS detector at the Large Hadron Collider during 2012. The search is designed for the H → bb decay mode and is performed in the single lepton (electrons or muons) decay channel of the top quark pair. In order to improve the sensitivity of the search, events are categorised according to their jet and b-tagged jet multiplicities into nine different analysis regions. A matrix element method is deve...
Search For A Standard Model Higgs Boson Produced In Association With A Top Quark Pair And Decaying To Bottom Quarks Using A Matrix Element Method
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2015
Search For A Standard Model Higgs Boson Produced In Association With A Top Quark Pair And Decaying To Bottom Quarks Using A Matrix Element Method written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Search For The Standard Model Higgs Boson Produced In Association With A Pair Of Top Quarks And Decaying Into A Bb Pair In The Single Lepton Channel At S
DOWNLOAD
Author : Leonid Serkin
language : en
Publisher:
Release Date : 2016
Search For The Standard Model Higgs Boson Produced In Association With A Pair Of Top Quarks And Decaying Into A Bb Pair In The Single Lepton Channel At S written by Leonid Serkin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Search For The Standard Model Higgs Boson Produced In Association With A Pair Of Top Quarks And Decaying Into A Bb Pair In The Single Lepton Channel At S
DOWNLOAD
Author : Matteo Mantoani
language : it
Publisher:
Release Date : 2017
Search For The Standard Model Higgs Boson Produced In Association With A Pair Of Top Quarks And Decaying Into A Bb Pair In The Single Lepton Channel At S written by Matteo Mantoani 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 presents a search for Standard Model Higgs boson produced in association with top quark pairs, ttH. The analysis uses 13.2 fb-1 of pp collision data at √s = 13 TeV collected in 2015 and 2016 with the ATLAS detector at the LHC. The considered decay mode for the Higgs boson is H->bb and the single lepton decay channel (electron or muon) for the tt pair. The sensitivity of this channel is improved by an event categorisation according to the jet multiplicity and the number of jets containing a b-hadron decay. Multivariate techniques are used to distinguish the signa...
Search For The Standard Model Higgs Boson Produced In Association With A Pair Of Top Quarks And Decaying Into A Bb Pair In The Single Lepton Channel At Sqrt S
DOWNLOAD
Author : Leonid Serkin
language : en
Publisher:
Release Date : 2016
Search For The Standard Model Higgs Boson Produced In Association With A Pair Of Top Quarks And Decaying Into A Bb Pair In The Single Lepton Channel At Sqrt S written by Leonid Serkin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
This thesis focuses on the search for the Standard Model Higgs boson produced in association with a pair of top quarks, ttH, using 20.3 fb-1 of pp collision data at sqrt{s} = 8 TeV, collected with the ATLAS detector at the Large Hadron Collider during 2012. The search is designed for the H -> bb decay mode and is performed in the single lepton channel, characterised by an isolated electron or muon, missing transverse energy and at least four jets. In order to improve the sensitivity of the search, events are categorised according to their jet and b-tagged jet multiplicities into nine analys...
Search For Bb Decay Of The Stand Model Higgs Boson Produced In Association With A Vector Boson W Z With The Atlas Detector
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2016
Search For Bb Decay Of The Stand Model Higgs Boson Produced In Association With A Vector Boson W Z With The Atlas Detector written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.