Search for New Physics in tt ̅ Final States with Additional Heavy-Flavor Jets with the ATLAS Detector

Search for New Physics in tt ̅ Final States with Additional Heavy-Flavor Jets with the ATLAS Detector

Author: Javier Montejo Berlingen

Publisher: Springer

Published: 2016-07-20

Total Pages: 288

ISBN-13: 3319410512

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This doctoral thesis focuses on the search for new phenomena in top-antitop quark (tt) final states with additional b-quark jets at the LHC. It uses the full Run 1 dataset collected by the ATLAS experiment in proton-proton collisions at √s=8 TeV. The final state of interest consists of an isolated lepton, a neutrino and at least six jets with at least four b-tagged jets, a challenging experimental signature owing to the large background from tt+heavy-flavor production. This final state is characteristic of ttH production, with the Higgs boson decaying into bb, a process that allows direct probing of the top-Higgs Yukawa coupling. This signature is also present in many extensions of the Standard Model that have been proposed as solutions to the hierarchy problem, such as supersymmetry or composite Higgs models, which predict the pair production of bosonic or fermionic top quark partners, or the anomalous production of four-top-quark events. All these physics processes have been searched for using an ambitious search strategy that has been developed on the basis of a combination of state-of-art theoretical predictions and a sophisticated statistical analysis to constrain in-situ the large background uncertainties. As a result, the most restrictive bounds to date on the above physics processes have been obtained.


Trade in Ideas

Trade in Ideas

Author: Eskil Ullberg

Publisher: Springer Science & Business Media

Published: 2012-02-02

Total Pages: 218

ISBN-13: 1461412722

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The economic system is generally understood to operate on the premise of exchange. The most important factor in economic development has always been technology, as a way to expand a limited resource base. Such increase in technology and knowledge is generally accepted by economists, but the mechanisms of exchange through which this happens are much less studied. Generally, a static analysis of product exchange, incorporating new technology, has been undertaken. This book explores the transition of trade in ideas from an exchange largely within firms and nations to an exchange between firms and nations. This process has been going on since the beginning of the patent system, where importing (trading) technology was made policy in 1474, more than 500 years ago. However, during the past 25-30 years, a growth in exchange of technology between specialized firms, cooperating based on patent licensing, has been phenomenal, with annual licensing transactions exceeding a trillion dollars, not counting value of cross-licensing. Such specialized exchange has been seen in history but not at this scale and level of coordination. Using principles of experimental economics, the author investigates the licensing contract and mechanisms of exchange (rules of trade) as this exchange moves towards organized markets with prices. A key issue concerns the effect of introducing demand side bidding, through which the patent system introduces specialization and multiple use of the same technology in different new products, thus expanding the use of technology a firm has to more actors, products, and consumers. The risk and uncertainty in market access for cheaper, better and unique products and services are reduced through new and competitive technology. Questions raised are related to the “optimal” integration of information and rules in dynamic exchange of patents through institutions. The view presented shows how inventors and traders can sell their intellectual property to buyers in a producer market, in this case in licensing contracts on patents, to diversify risk and monetize value based on an experimental economic study where the performance and behavioral properties of these institutions is the object of investigation. More fundamentally the work illustrates the theoretical, design, and patent system policy issues in a transition from personal to impersonal trade in ideas. This book explores the transition of trade in ideas from an exchange largely within firms and nations to an exchange between firms and nations. This process has been going on since the beginning of the patent system, where importing (trading) technology was made policy in 1474, more than 500 years ago. However, during the past 25-30 years, a growth in exchange of technology between specialized firms, cooperating based on patent licensing, has been phenomenal, with annual licensing transactions exceeding a trillion dollars, not counting value of cross-licensing. Such specialized exchange has been seen in history but not at this scale and level of coordination. Using principles of experimental economics, the author investigates the licensing contract and mechanisms of exchange (rules of trade) as this exchange moves towards organized markets with prices. A key issue concerns the effect of introducing demand side bidding, through which the patent system introduces specialization and multiple use of the same technology in different new products, thus expanding the use of technology a firm has to more actors, products, and consumers. The risk and uncertainty in market access for cheaper, better and unique products and services are reduced through new and competitive technology. Questions raised are related to the “optimal” integration of information and rules in dynamic exchange of patents through institutions. The view presented shows how inventors and traders can sell their intellectual property to buyers in a producer market, in this case in licensing contracts on patents, to diversify risk and monetize value based on an experimental economic study where the performance and behavioral properties of these institutions is the object of investigation. More fundamentally the work illustrates the theoretical, design, and patent system policy issues in a transition from personal to impersonal trade in ideas.


Deleuze and Guattari

Deleuze and Guattari

Author: Philip Goodchild

Publisher: SAGE

Published: 1996-09-27

Total Pages: 240

ISBN-13: 1446226239

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This accessible book examines critically the writings of Deleuze and Guattari, clarifying the ideas of these two notoriously difficult thinkers without over-simplifying them. Divided into three sections - Knowledge, Power, and Liberation of Desire - the book provides a systematic account of the intellectual context as well as an exhaustive analysis of the key themes informing Deleuze and Guattari′s work. It provides the framework for reading the important and influential study Capitalism and Schizophrenia and, with the needs of students in mind, explains the key concepts in Deleuze and Guattari′s discussion of philosophy, art and politics. Definitive and incisive, the book will be invaluable in situating the philosophy of these two major figures within the perspective of the social and human sciences.


Search For New Elementary Particles, The: Status And Prospect - Proceedings Of The Trieste Workshop

Search For New Elementary Particles, The: Status And Prospect - Proceedings Of The Trieste Workshop

Author: Martin Lewis Perl

Publisher: World Scientific

Published: 1993-06-14

Total Pages: 315

ISBN-13: 9814553662

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It has been more than a decade since new elementary particles were discovered. To recognize the findings of scientists in this still fairly new but exciting and promising area of research, the Trieste Workshop was organised in May 1992 to discuss the status and explore the prospects for the discovery of new elementary particles using the full variety of search methods which are, or will be available to the physicist. All papers in this collection of proceedings are reviews written by experts in their own area of speciality. Many review papers based on experimental findings are also included. To present a clearer and more coherent overview, a theoretical overview talk as well as a summary talk have been included to serve as a link between the various areas that were discussed in the papers. This collection of papers is perhaps the first authoritative source ever published on the search for new elementary particles.


ConUNdrum

ConUNdrum

Author: Brett D. Schaefer

Publisher: Rowman & Littlefield

Published: 2009

Total Pages: 408

ISBN-13: 9781442200067

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Theo Michael's first book records his journey as an artist and features over 50 of his most successful paintings, including Balcony With A View, Serenade, A Kiss Is Just A Kiss and many more.Created in his own personal cinematic poster style, the paintings capture the nostalgia of a time gone by in a genre often referred to as Art Noir. His love for Film Noir, 'B' movies and Pulp Art books is apparent.Many of Theo's landscape paintings are strongly influenced by the American illustrator Edward Hopper, beautifully capturing the effects of summer light. The book is full of sketches and preliminary work, revealing the working method of an artist. A perfect coffee table item, ideally suited as a gift.


ECAI 2002

ECAI 2002

Author: Frank Van Harmelen

Publisher: IOS Press

Published: 2002

Total Pages: 774

ISBN-13: 9781586032579

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This volume contains the 137 papers accepted for presentation at the 15th European Conference on Artificial Intelligence (ECAI '02), which is organized by the European Co-ordination Committee on Artificial Intelligence.