Development Of A New Tracker For The Cms Upgrade Phase 2 And Study Of The Hl Lhc Physics Reach
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Development Of A New Tracker For The Cms Upgrade Phase 2 And Study Of The Hl Lhc Physics Reach
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Author : Martin Delcourt
language : en
Publisher: Presses universitaires de Louvain
Release Date : 2020-11-26
Development Of A New Tracker For The Cms Upgrade Phase 2 And Study Of The Hl Lhc Physics Reach written by Martin Delcourt and has been published by Presses universitaires de Louvain this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-26 with Science categories.
The standard model of particle physics provides a coherent description of highenergy physics processes and has been hugely successful in providing experimental predictions. Among its long list of achievements, the most significant is arguably that of the discovery of the Higgs boson half a century after being theorised, providing the last cornerstone needed for the standard model to become fully consistent. Despite huge successes, the standard model still suffers from major shortcomings. On the path leading towards a better understanding of particle physics, an in-depth study of the Higgs boson is key. This relentless work of characterising the properties of the Higgs boson is currently being undertaken at the Large Hadron Collider, where high-energy proton collisions are being recorded by dedicated detectors, providing a continuous improvement to the understanding of the standard model. Amid tremendous achievements, some processes, remain too weak to be detected with the current installations. One such measurement is the combined production of two Higgs bosons allowing for a direct handle on the Higgs self-coupling parameter of the standard model. To maximise the physics reach of the collider, it will be subjected to a major upgrade, allowing for a strong increase in luminosity. Such a dramatic change will bring major challenges to the experiments recording these collisions and upgrades are required if they are to maintain their outstanding performance. This thesis explores the upgrade of the CMS silicon strip detector, centred around the in-beam characterisation of detector module prototypes and discusses the physics reach of the upgraded machine, with an emphasis on Higgs boson pair production in the bbWW(l) final state.
Proceedings Of International Conference On Technology And Instrumentation In Particle Physics 2017
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Author : Zhen-An Liu
language : en
Publisher: Springer
Release Date : 2018-08-07
Proceedings Of International Conference On Technology And Instrumentation In Particle Physics 2017 written by Zhen-An Liu and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-07 with Technology & Engineering categories.
These two volumes present the proceedings of the International Conference on Technology and Instrumentation in Particle Physics 2017 (TIPP2017), which was held in Beijing, China from 22 to 26 May 2017. Gathering selected articles on the basis of their quality and originality, it highlights the latest developments and research trends in detectors and instrumentation for all branches of particle physics, particle astrophysics and closely related fields. This is the second volume, and focuses on the main themes Astrophysics and space instrumentation, Front-end electronics and fast data transmission, Trigger and data acquisition systems, Machine detectors, Interfaces and beam instrumentation, Backend readout structures and embedded systems, Medical imaging, and Security & other applications. The TIPP2017 is the fourth in a series of international conferences on detectors and instrumentation, held under the auspices of the International Union of Pure and Applied Physics (IUPAP). The event brings together experts from the scientific and industrial communities to discuss their current efforts and plan for the future. The conference’s aim is to provide a stimulating atmosphere for scientists and engineers from around the world.
Search For The Higgs Boson Produced In Association With Top Quarks With The Cms Detector At The Lhc
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Author : Cristina Martin Perez
language : en
Publisher: Springer Nature
Release Date : 2022-02-09
Search For The Higgs Boson Produced In Association With Top Quarks With The Cms Detector At The Lhc written by Cristina Martin Perez and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-02-09 with Science categories.
In this work, the interaction between the Higgs boson and the top quark is studied with the proton-proton collisions at 13 TeV provided by the LHC at the CMS detector at CERN (Geneva). At the LHC, these particles are produced simultaneously via the associate production of the Higgs boson with one top quark (tH process) or two top quarks (ttH process). Compared to many other possible outcomes of the proton-proton interactions, these processes are very rare, as the top quark and the Higgs boson are the heaviest elementary particles known. Hence, identifying them constitutes a significant experimental challenge. A high particle selection efficiency in the CMS detector is therefore crucial. At the core of this selection stands the Level-1 (L1) trigger system, a system that filters collision events to retain only those with potential interest for physics analysis. The selection of hadronically decaying τ leptons, expected from the Higgs boson decays, is especially demanding due to the large background arising from the QCD interactions. The first part of this thesis presents the optimization of the L1 τ algorithm in Run 2 (2016-2018) and Run 3 (2022-2024) of the LHC. It includes the development of a novel trigger concept for the High-Luminosity LHC, foreseen to start in 2027 and to deliver 5 times the current instantaneous luminosity. To this end, sophisticated algorithms based on machine learning approaches are used, facilitated by the increasingly modern technology and powerful computation of the trigger system. The second part of the work presents the search of the tH and ttH processes with the subsequent decays of the Higgs boson to pairs of τ lepton, W bosons or Z bosons, making use of the data recorded during Run 2. The presence of multiple particles in the final state, along with the low cross section of the processes, makes the search an ideal use case for multivariant discriminants that enhance the selectivity of the signals and reject the overwhelming background contributions. The discriminants presented are built using state-of-the-art machine learning techniques, able to capture the correlations amongst the processes involved, as well as the so-called Matrix Element Method (MEM), which combines the theoretical description of the processes with the detector resolution effects. The level of sophistication of the methods used, along with the unprecedented amount of collision data analyzed, result in the most stringent measurements of the tH and ttH cross sections up to date.
Technology Meets Research 60 Years Of Cern Technology Selected Highlights
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Author : Christian W Fabjan
language : en
Publisher: World Scientific
Release Date : 2017-04-27
Technology Meets Research 60 Years Of Cern Technology Selected Highlights written by Christian W Fabjan and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-04-27 with Science categories.
'The contributions from leading scientists of the day collected in this relatively slim book document CERN's 60-year voyage of innovation and discovery, the repercussions of which vindicate the vision of those who drove the foundation of the laboratory — European in constitution, but global in impact. The spirit of inclusive collaboration, which was a key element of the original vision for the laboratory, together with the aim of technical innovation and scientific excellence, are reflected in each of the articles in this unique volume.'CERN Courier'Big' science and advanced technology are known to cross-fertilize. This book emphasizes the interplay between particle physics and technology at CERN that has led to breakthroughs in both research and technology over the laboratory's first 60 years. The innovations, often the work of individuals or by small teams, are illustrated with highlights describing selected technologies from the domains of accelerators and detectors. The book also presents the framework and conditions prevailing at CERN that enabled spectacular advances in technology and contributed to propel the European organization into the league of leading research laboratories in the world.While the book is specifically aimed at providing information for the technically interested general public, more expert readers may also appreciate the broad variety of subjects presented. Ample references are given for those who wish to further explore a given topic.
Radiation Sensors With 3d Electrodes
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Author : Cinzia Da Vià
language : en
Publisher: CRC Press
Release Date : 2019-01-17
Radiation Sensors With 3d Electrodes written by Cinzia Da Vià and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-01-17 with Science categories.
Written by the leading names in this field, this book introduces the technical properties, design and fabrication details, measurement results, and applications of three-dimensional silicon radiation sensors. Such devices are currently used in the ATLAS experiment at the European Centre for Particle Physics (CERN) for particle tracking in high energy physics. These sensors are the radiation hardest devices ever fabricated and have applications in ground-breaking research in neutron detection, medical dosimetry and space technologies and more. Chapters explore the essential features of silicon particle detectors, interactions of radiation with matter, radiation damage effects, and micro-fabrication, in addition to a providing historical overview of the field. This book will be a key reference for students and researchers working with sensor technologies. Features: The first book dedicated to this unique and growing subject area, which is also widely applicable in high-energy physics, medical physics, space science and beyond Authored by Sherwood Parker, the inventor of the concept of 3D detectors; Cinzia Da Vià, who has brought 3DSi technology to application; and Gian-Franco Dalla Betta, a leading figure in the design and fabrication technology of these devices Explains to non-experts the essential features of silicon particle detectors, interactions of radiation with matter, radiation damage effects, and micro-fabrication
Integrated Technologies In Electrical Electronics And Biotechnology Engineering
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Author : Gaurav Aggarwal
language : en
Publisher: CRC Press
Release Date : 2025-03-31
Integrated Technologies In Electrical Electronics And Biotechnology Engineering written by Gaurav Aggarwal and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-03-31 with Science categories.
The conference was aimed to bring researchers, practicing engineers, faculty members and students from across the globe to a common platform to share their research ideas that would pave way to attain solution to various real time problems. Many eminent researchers from different countries participated and interacted with the young students and budding researchers from various institutions. The objective of this conference was to connect with junior and senior scholars working with educational architecture of the past, present or future in the area of Semiconductor Devices & Electronic Circuit Design, Machine Vision & Signal Processing, Communication Technologies and Systems, Electromagnetic, RF, Microwave & Wearable Technology, Nano-Technologies & IC Fabrication, Biotechnology, Automation & Robotics, Electrical Machines and Adjustable Speed Drives, Renewable Energy Sources, Smart grids Technologies & Applications. Key features included keynote presentations from renowned experts, paper presentations showcasing novel research, interactive panel discussions, and exploring practical applications of emerging technologies.
High Luminosity Large Hadron Collider The The New Machine For Illuminating The Mysteries Of Universe
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Author : Oliver Bruning
language : en
Publisher: World Scientific
Release Date : 2015-08-28
High Luminosity Large Hadron Collider The The New Machine For Illuminating The Mysteries Of Universe written by Oliver Bruning and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-08-28 with Science categories.
This book provides a broad introduction to the physics and technology of the High Luminosity Large Hadron Collider (HL-LHC). This new configuration of the LHC is one of the major accelerator projects for the next 20 years and will give new life to the LHC after its first 15-year operation. Not only will it allow more precise measurements of the Higgs boson and of any new particles that might be discovered in the next LHC run, but also extend the mass limit reach for detecting new particles. The HL-LHC is based on the innovative accelerator magnet technologies capable of generating 11-13 Tesla fields, with effectiveness enhanced by use of the new Achromatic Telescopic Squeezing scheme, and other state-of-the-art accelerator technologies, such as superconducting compact RF crab cavities, advanced collimation concepts, and novel power technology based on high temperature superconducting links.The book consists of a series of chapters touching on all issues of technology and design, and each chapter can be read independently. The first few chapters give a summary of the whole project, of the physics motivation and of the accelerator challenges. The subsequent chapters cover the novel technologies, the new configurations of LHC and of its injectors as well as the expected operational implications. Altogether, the book brings the reader to the heart of technologies for the leading edge accelerator and gives insights into next generation hadron colliders.
Top Quark Spin Correlations With The Cms Detector
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Author : Jason R. Thieman
language : en
Publisher: Springer Nature
Release Date : 2024-12-04
Top Quark Spin Correlations With The Cms Detector written by Jason R. Thieman and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-12-04 with Science categories.
The differential top quark precision measurements of polarizations and spin correlations presented in this dissertation may potentially lead to breakthroughs in several key areas: observing quantum entanglement and Bell's Inequality violations in a hadronic system, discovering toponium, illuminating supersymmetry, interpreting field theories beyond the Standard Model, and advancing the understanding of electroweak vacuum stability. Additionally, this thesis provides a significantly improved understanding of CMS detector lepton trigger efficiencies, which has greatly enhanced the search for Lorentz invariance violation in top quark events, boosting the sensitivity by greater than a factor of 100. Finally, the thesis includes TCAD simulations that explore the feasibility of using the initial transient induced current, as described by the Ramo-Shockley Theorem, to achieve the picosecond timing precision in silicon pixel detectors needed for four-dimensional tracking.
Novel Ideas For Accelerators Particle Detection And Data Challenges At Future Colliders
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Author : Alessandro Tricoli
language : en
Publisher: Frontiers Media SA
Release Date : 2023-07-21
Novel Ideas For Accelerators Particle Detection And Data Challenges At Future Colliders written by Alessandro Tricoli and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-07-21 with Science categories.
The High Luminosity Large Hadron Collider
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Author : Oliver Brüning
language : en
Publisher: World Scientific Publishing Company
Release Date : 2015-08-28
The High Luminosity Large Hadron Collider written by Oliver Brüning and has been published by World Scientific Publishing Company this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-08-28 with Science categories.
This book provides a broad introduction to the physics and technology of the High Luminosity Large Hadron Collider (HL-LHC). This new configuration of the LHC is one of the major accelerator projects for the next 20 years and will give new life to the LHC after its first 15-year operation. Not only will it allow more precise measurements of the Higgs boson and of any new particles that might be discovered in the next LHC run, but also extend the mass limit reach for detecting new particles. The HL-LHC is based on the innovative accelerator magnet technologies capable of generating 11–13 Tesla fields, with effectiveness enhanced by use of the new Achromatic Telescopic Squeezing scheme, and other state-of-the-art accelerator technologies, such as superconducting compact RF crab cavities, advanced collimation concepts, and novel power technology based on high temperature superconducting links. The book consists of a series of chapters touching on all issues of technology and design, and each chapter can be read independently. The first few chapters give a summary of the whole project, of the physics motivation and of the accelerator challenges. The subsequent chapters cover the novel technologies, the new configurations of LHC and of its injectors as well as the expected operational implications. Altogether, the book brings the reader to the heart of technologies for the leading edge accelerator and gives insights into next generation hadron colliders.