Author: Wuming LuoPublisher:
ISBN:
Category :
Languages : en
Pages : 186
Book Description
Searching for the Standard Model Higgs Boson Produced in Association with a Top-quark Pair in PP Collisions at the LHC
Author: Wuming LuoSearch for a Standard Model Higgs Boson Produced in Association with a Top-quark Pair and Decaying to Bottom Quarks Using a Matrix Element Method
Author: Particle Physics Reference Library
Author: Herwig SchopperPublisher: Springer Nature
ISBN: 3030382079
Category : Heavy ions
Languages : en
Pages : 632
Book Description
This first open access volume of the handbook series contains articles on the standard model of particle physics, both from the theoretical and experimental perspective. It also covers related topics, such as heavy-ion physics, neutrino physics and searches for new physics beyond the standard model. A joint CERN-Springer initiative, the "Particle Physics Reference Library" provides revised and updated contributions based on previously published material in the well-known Landolt-Boernstein series on particle physics, accelerators and detectors (volumes 21A, B1,B2,C), which took stock of the field approximately one decade ago. Central to this new initiative is publication under full open access
Search for Standard Model Higgs Boson Produced in Association with a Top Anti-top Quark Pair in 1.96 TeV Proton - Anti-proton Collisions
Author: The Higgs Boson Discovery at the Large Hadron Collider
Author: Roger WolfPublisher: Springer
ISBN: 3319185128
Category : Science
Languages : en
Pages : 192
Book Description
This book provides a comprehensive overview of the field of Higgs boson physics. It offers the first in-depth review of the complete results in connection with the discovery of the Higgs boson at CERN’s Large Hadron Collider and based on the full dataset for the years 2011 to 2012. The fundamental concepts and principles of Higgs physics are introduced and the important searches prior to the advent of the Large Hadron Collider are briefly summarized. Lastly, the discovery and first mensuration of the observed particle in the course of the CMS experiment are discussed in detail and compared to the results obtained in the ATLAS experiment.
Search for the Standard Model Higgs Boson Produced in Association with Top Quarks and Decaying Into a B ̄ B Pair in P P Collisions at √ S
Author: Felix BührerSearch for tt̄H Production in the H → bb̅ Decay Channel
Author: Marcel RiegerPublisher: Springer Nature
ISBN: 3030653803
Category : Science
Languages : en
Pages : 217
Book Description
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.
Electroweak Physics at the LHC
Author: Matthias U. MozerPublisher: Springer
ISBN: 3319303813
Category : Science
Languages : en
Pages : 121
Book Description
The book discusses the recent experimental results obtained at the LHC that involve electroweak bosons. The results are placed into an appropriate theoretical and historical context. The work pays special attention to the rising subject of hadronically decaying bosons with high boosts, documenting the state-of-the-art identification techniques and highlighting typical results. The text is not limited to electroweak physics in the strict sense, but also discusses the use of electroweak vector-bosons as tool in the study of other subjects in particle physics, such as determinations of the proton structure or the search for new exotic particles. The book is particularly well suited for graduate students, starting their thesis work on topics that involve electroweak bosons, as the book provides a comprehensive description of phenomena observable at current accelerators as well as a summary of the most relevant experimental techniques.
The Higgs Boson Produced With Top Quarks in Fully Hadronic Signatures
Author: Daniel SalernoPublisher: Springer Nature
ISBN: 3030312577
Category : Science
Languages : en
Pages : 207
Book Description
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 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
Author: Matteo MantoaniPublisher:
ISBN:
Category :
Languages : it
Pages :
Book Description
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...