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Book Synopsis Discovery and Measurement of the Higgs Boson in the WW Decay Channel by : David Hall
Download or read book Discovery and Measurement of the Higgs Boson in the WW Decay Channel written by David Hall and published by Springer. This book was released on 2015-06-15 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes the stand-alone discovery and measurement of the Higgs boson in its decays to two W bosons using the Run-I ATLAS dataset. This is the most precise measurement of gluon-fusion Higgs boson production and is among the most significant results attained at the LHC. The thesis provides an exceptionally clear exposition on a complicated analysis performed by a large team of researchers. Aspects of the analysis performed by the author are explained in detail; these include new methods for evaluating uncertainties on the jet binning used in the analysis and for estimating the background due to associated production of a W boson and an off-shell photon. The thesis also describes a measurement of the WW cross section, an essential background to Higgs boson production. The primary motivation of the LHC was to prove or disprove the existence of the Higgs boson. In 2012, CERN announced this discovery and the resultant ATLAS publication contained three decay channels: gg, ZZ, and WW.
Book Synopsis '97 QCD and High Energy Hadronic Interactions by : J. Thanh Van Tran
Download or read book '97 QCD and High Energy Hadronic Interactions written by J. Thanh Van Tran and published by Atlantica Séguier Frontières. This book was released on 1997 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis QCD Higher-Order Effects and Search for New Physics by : Jian Wang
Download or read book QCD Higher-Order Effects and Search for New Physics written by Jian Wang and published by Springer. This book was released on 2015-10-28 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book mainly investigates the precision predictions on the signal of new physics at the Large Hadron Collider (LHC) in the perturbative Quantum Chromodynamics (QCD) scheme. The potential of the LHC to discover the signal of dark matter associated production with a photon is studied after including next-to-leading order QCD corrections. The factorization and resummation of t-channel top quark transverse momentum distribution in the standard model at both the Tevatron and the LHC with soft-collinear effective theory are presented. The potential of the early LHC to discover the signal of monotops is discussed. These examples illustrate the method of searching for new physics beyond what is known today with high precision.
Book Synopsis Third generation SUSY and t ̄t +Z production by : Josh McFayden
Download or read book Third generation SUSY and t ̄t +Z production written by Josh McFayden and published by Springer. This book was released on 2014-06-06 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes searches for new particles predicted by the super symmetry (SUSY) theory, a theory extending beyond the current Standard Model of particle physics, using the ATLAS detector at the CERN Large Hadron Collider. The thesis focuses on searches for stop and sbottom squarks, the SUSY partners of the top and bottom quarks, which are expected to be lighter than the partners of the first and second generation quarks and therefore good candidates for the first evidence of SUSY. It describes novel techniques for estimating and rejecting the Standard-Model backgrounds to searches for these particles. It also includes an independent analysis seeking to constrain the Standard Model ttZ background process, which also represents the first ATLAS search for this rare process at the LHC. The stop squark analysis described, with substantial leading contributions from the author, is the first search for these particles at the LHC to use the jets plus missing transverse energy plus 0-lepton signature and provides the world's best limits on the stop mass for light neutralino LSPs. All in all, the thesis describes three different world-leading analyses in both Standard Model and SUSY physics and therefore represents a major contribution to the field.
Book Synopsis Search for tt̄H Production in the H → bb̅ Decay Channel by : Marcel Rieger
Download or read book Search for tt̄H Production in the H → bb̅ Decay Channel written by Marcel Rieger and published by Springer Nature. This book was released on 2021-02-25 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book IFAE 2006 written by G. Montagna and published by Springer Science & Business Media. This book was released on 2007-04-30 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book collects the Proceedings of the Workshop "Incontri di Fisica delle Alte Energie (IFAE) 2006, Pavia, 19-21 Aprile 2006". The workshop is the fifth edition of a series of workshops on fundamental research in particle physics, as carried on at the most important international laboratories, and possible fallouts in medical and technological applications. Researches in this field aim at identifying the most elementary constituents of matter.
Book Synopsis Physics for a New Generation by : Heimo Latal
Download or read book Physics for a New Generation written by Heimo Latal and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: th This volume contains the written versions of invited lectures presented at the 28 "Internationale Universitatswochen fUr Kernphysik" in Schladming, Austria in March 1989. The generous support of our sponsors, the Austrian Ministry of Science and Research, the Government of Styria, and others, made it again possible to invite expert lecturers. The courses were centered on elementary particle physics to be performed with large accelerators accessible in the immediate future, including some reports on the current situation. Thanks to the efforts of the speakers it was possible to obtain excellent surveys. After the School the lecture notes were revised and partially rewritten in TPC by the authors, whom we thank for their labour. Unfortunately the report on the situation at SLAC by M. Swartz could not be included. Thanks are also due to the publishers for their patience. Graz, Austria H. Latal December 1989 H. Mitter v Contents Phenomenology of and Beyond the Standard Electroweak Model By A. Bartl, H. Pietschmann, and H. Stremnitzer (With 6 Figures) 1 1. The Standard Model (H. Pietschmann) . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1. 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1. 2 Defining the Standard Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1. 3 Testing the Standard Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1. 4 Predictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1. 5 Open Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1. 6 Hypotheses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1. 7 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2. Beyond the Standard Model: Supersymmetry (A. Bartl) . . . . . . . . . . . . 9 2. 1 Supersymmetric Extension of the Standard Model . . . . . . . . . . . . 10 2. 2 Production and Decay of Supersymmetric Particles . . . . . . . . . . . 17 3. Beyond the Standard Model: Composite Models (H.
Book Synopsis Phenomenology of Particle Physics by : André Rubbia
Download or read book Phenomenology of Particle Physics written by André Rubbia and published by Cambridge University Press. This book was released on 2022-05-12 with total page 1112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written for a two-semester Master's or graduate course, this comprehensive treatise intertwines theory and experiment in an original approach that covers all aspects of modern particle physics. The author uses rigorous step-by-step derivations and provides more than 100 end-of-chapter problems for additional practice to ensure that students will not only understand the material but also be able to apply their knowledge. Featuring up-to-date experimental material, including the discovery of the Higgs boson at CERN and of neutrino oscillations, this monumental volume also serves as a one-stop reference for particle physics researchers of all levels and specialties. Richly illustrated with more than 450 figures, the text guides students through all the intricacies of quantum mechanics and quantum field theory in an intuitive manner that few books achieve.
Book Synopsis Search for Dark Matter with the ATLAS Detector by : Johanna Gramling
Download or read book Search for Dark Matter with the ATLAS Detector written by Johanna Gramling and published by Springer. This book was released on 2018-08-01 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses searches for Dark Matter at the CERN’s LHC, the world’s most powerful accelerator. It introduces the relevant theoretical framework and includes an in-depth discussion of the Effective Field Theory approach to Dark Matter production and its validity, as well as an overview of the formalism of Simplified Dark Matter models. Despite overwhelming astrophysical evidence for Dark Matter and numerous experimental efforts to detect it, the nature of Dark Matter still remains a mystery and has become one of the hottest research topics in fundamental physics. Two searches for Dark Matter are presented, performed on data collected with the ATLAS experiment. They analyze missing-energy final states with a jet or with top quarks. The analyses are explained in detail, and the outcomes and their interpretations are discussed, also in view of the precedent analysis of theoretical approaches. Given its depth of coverage, the book represents an excellent reference guide for all physicists interested in understanding the theoretical and experimental considerations relevant to Dark Matter searches at the LHC.
Book Synopsis Particle Physics At The Tercentenary Of Mikhail Lomonosov - Proceeding Of The Fifteenth Lomonosov Conference On Elementary Particle Physics by : Alexander I Studenikin
Download or read book Particle Physics At The Tercentenary Of Mikhail Lomonosov - Proceeding Of The Fifteenth Lomonosov Conference On Elementary Particle Physics written by Alexander I Studenikin and published by World Scientific. This book was released on 2012-11-27 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is devoted to a wide variety of investigations, both in theory and experiment, of particle physics such as electroweak theory, fundamental symmetries, tests of the Standard Model and beyond, neutrino and astroparticle physics, heavy quark physics, non-perturbative QCD, quantum gravity effects, and present and future accelerator physics.
Download or read book IFAE 2007 written by G. Carlino and published by Springer Science & Business Media. This book was released on 2008-09-16 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book collects the Proceedings of the Workshop "Incontri di Fisica delle Alte Energie (IFAE) 2007, Napoli, 11-13 April 2007". Presentations, both theoretical and experimental, addressed the status of Physics of the Standard Model and beyond, Flavour physics, Neutrino and Astroparticle physics, and new technology in high energy physics. Special emphasis amid this rich exchange of ideas was given to the expectations of the forthcoming Large Hadron Collider.
Author :Moskovskiĭ gosudarstvennyĭ universitet im. M.V. Lomonosova Publisher :World Scientific ISBN 13 :9814436828 Total Pages :481 pages Book Rating :4.8/5 (144 download)
Book Synopsis Particle Physics at the Tercentenary of Mikhail Lomonosov by : Moskovskiĭ gosudarstvennyĭ universitet im. M.V. Lomonosova
Download or read book Particle Physics at the Tercentenary of Mikhail Lomonosov written by Moskovskiĭ gosudarstvennyĭ universitet im. M.V. Lomonosova and published by World Scientific. This book was released on 2013 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is devoted to a wide variety of investigations, both in theory and experiment, of particle physics such as electroweak theory, fundamental symmetries, tests of the Standard Model and beyond, neutrino and astroparticle physics, heavy quark physics, non-perturbative QCD, quantum gravity effects, and present and future accelerator physics.
Download or read book Particle Physics written by Maurice Levy and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 673 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 1987 Cargese Summer Institute on Partiele Physies was organized by the Universite Pierre et Marie Curie, Paris (M. LEVY and J.-L. BASDEVANT), CERN (M. JACOB), the Universite Catholique de Louvain (D. SPEISER and J. WEYERS), and the Katholieke Universiteit te Leuven (R. GASTHANS), whieh, sinee 1975, have joined their efforts and worked in eommon. It was the 25th summer institute held at Cargese and the ninth one organized by the two institutes of theoretieal physics at Leuven and Louvain-la-Neuve. The 1987 school was centered around two main themes: the re cent developments in string theory and the physics of high energy colliders. As the standard model of the fundamental interaetions has repeatedly proved to be suecessful in explaining the experimental findings in par tiele physies, more attention was given in this school to possible new features arising from string inspired models. This led us to inelude in the program aseries of lectures devoted to string theory per se. They eovered the more mathematical aspects of the theory as weIl as the phenomenological implications. The second theme concerns high energy collider physics and was meant to prepare young physicists for the future experimental results to be expected from the pp and e+e- colliders. It brought theorists and ex perimentalists actively together in their search for a better understand ing of the high energy phenomena.
Book Synopsis New Trends in HERA Physics 1999 by : G. Grindhammer
Download or read book New Trends in HERA Physics 1999 written by G. Grindhammer and published by Springer. This book was released on 2008-01-11 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experts on elementary-particle physics, both theorists and experimentalists, met to present their latest results on the various aspects of HERA physics, specifically, the H1 and ZEUS collaborations at HERA and the collaborations at LEP and the Tevatron were presented. The topics included: proton structure function; polarized "ep" scattering; final states in deep-inelastic scattering (DIS), with special emphasis on jet production at low x, power corrections in DIS, soft particle production, and instanton effects; photon structure function; photoproduction of jets and hadrons; heavy-flavour and charmonium production; elastic and diffractive ep scattering; and new physics at HERA.
Book Synopsis The Higgs Boson Produced With Top Quarks in Fully Hadronic Signatures by : Daniel Salerno
Download or read book The Higgs Boson Produced With Top Quarks in Fully Hadronic Signatures written by Daniel Salerno and published by Springer Nature. This book was released on 2019-10-25 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Physics at LEP2 written by G. Altarelli and published by . This book was released on 1996 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Phenomena Beyond the Standard Model: What Do We Expect for New Physics to Look Like? by : Roman Pasechnik
Download or read book Phenomena Beyond the Standard Model: What Do We Expect for New Physics to Look Like? written by Roman Pasechnik and published by Frontiers Media SA. This book was released on 2020-09-03 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
