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 PDF Download
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| Author | : Matteo Mantoani |
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| Total Pages | : |
| Release | : 2017 |
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Download 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 Book in PDF, ePub and Kindle
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...
| Author | : Leonid Serkin |
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| Release | : 2016 |
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Download 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} Book in PDF, ePub and Kindle
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...
| Author | : Leonid Serkin |
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| Total Pages | : |
| Release | : 2016 |
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Download 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 Book in PDF, ePub and Kindle
| Author | : Giulia Di Gregorio |
| Publisher | : Springer Nature |
| Total Pages | : 229 |
| Release | : 2023-01-01 |
| Genre | : Science |
| ISBN | : 3031200136 |
Download A Beauty-ful Boson Book in PDF, ePub and Kindle
The analysis described in this thesis is the search for the Higgs boson, decaying into bb pair, in the associated production with a vector boson, in the extreme Higgs boson transverse momentum region where the Higgs boson is reconstructed using the large-R jet technique. The use of the large-R jets allows to add a part of the phase space unexplored so far, which is particularly sensitive to possible new physics. The analysed data have been collected at LHC by the ATLAS detector between 2015 and 2018 at a centre-of-mass energy of √s = 13 TeV. The same dataset has been used to perform the differential pp → ZH and pp → WH cross-section measurements used to extract the information on the Higgs couplings and to put limits on Beyond the Standard Model effects. Furthermore the analysis has been re-used to perform a cross-section measurement of the diboson ZZ and WZ processes because the diboson and the Higgs processes have a similar topology. For the first time the ZZ(bb) and WZ(bb) cross-sections are measured at √s = 13 TeV and the observed cross-section measurements are consistent with the Standard Model predictions.
| Author | : Roman Pasechnik |
| Publisher | : Frontiers Media SA |
| Total Pages | : 180 |
| Release | : 2020-09-03 |
| Genre | : Science |
| ISBN | : 2889639908 |
Download Phenomena Beyond the Standard Model: What Do We Expect for New Physics to Look Like? Book in PDF, ePub and Kindle
This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
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| Release | : 2015 |
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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 Book in PDF, ePub and Kindle
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...
| Author | : Herwig Schopper |
| Publisher | : Springer Nature |
| Total Pages | : 632 |
| Release | : 2020 |
| Genre | : Heavy ions |
| ISBN | : 3030382079 |
Download Particle Physics Reference Library Book in PDF, ePub and Kindle
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
| Author | : Patrick L.S. Connor |
| Publisher | : Springer Nature |
| Total Pages | : 325 |
| Release | : 2019-11-29 |
| Genre | : Science |
| ISBN | : 3030343839 |
Download Inclusive b Jet Production in Proton-Proton Collisions Book in PDF, ePub and Kindle
^ 74 GeV and |y| 2.4; the b jets must contain a B hadron. The measurement has significant statistics up to p T ∼ O(TeV). Advanced methods of unfolding are performed to extract the signal. It is found that fixed-order calculations with underlying event describe the measurement well.
| Author | : Xavier Coubez |
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| Total Pages | : 0 |
| Release | : 2017 |
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Download Search for the Standard Higgs Boson Produced in Association with a Pair of Top Quark in the Multi-leptons Channel in the CMS Experiment Book in PDF, ePub and Kindle
The discovery in 2012 of the last elementary particle predicted by the Standard Model, the Higgs boson, has opened a new era in particle physics. One of the objectives now is to probe the coupling of the Higgs boson to other particles in order to confirm the validity of the model. The work of this thesis focused initially on the identification of jets coming from b quark at trigger level. The goal is to allow for the selection of one thousand events among the forty million produced every second at the LHC, by identifiying objects present in the final states of interesting physics processes such as the associated production of a Higgs boson decaying in a pair of b quark with a Z boson decaying into undetected neutrinos. The work then moved to the study of the coupling of the Higgs boson to the quark top, most massive particle in the Standard Model. After a study of one of the important background of the associated production of the Higgs boson and a top quark pair, a new method called matrix element method has been used to improve the discrimination between signal and background. This analysis has led to the first experimental evidence of coupling between the Higgs boson and the top quark.
| Author | : Daniel Salerno |
| Publisher | : Springer Nature |
| Total Pages | : 207 |
| Release | : 2019-10-25 |
| Genre | : Science |
| ISBN | : 3030312577 |
Download The Higgs Boson Produced With Top Quarks in Fully Hadronic Signatures Book in PDF, ePub and Kindle
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.
