Inside Cern S Large Hadron Collider From The Proton To The Higgs Boson

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Inside Cern's Large Hadron Collider: From The Proton To The Higgs Boson

Author : Campanelli Mario
Publisher : World Scientific
Page : 112 pages
File Size : 50,9 Mb
Release : 2015-09-16
Category : Science
ISBN : 9789814656672

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Inside Cern's Large Hadron Collider: From The Proton To The Higgs Boson by Campanelli Mario Pdf

The book aims to explain the historical development of particle physics, with special emphasis on CERN and collider physics. It describes in detail the LHC accelerator and its detectors, describing the science involved as well as the sociology of big collaborations, culminating with the discovery of the Higgs boson. Readers are led step-by-step to understanding why we do particle physics, as well as the tools and problems involved in the field. It provides an insider's view on the experiments at the Large Hadron Collider.

The Large Hadron Collider

Author : Lyndon R. Evans
Publisher : EPFL Press
Page : 264 pages
File Size : 50,8 Mb
Release : 2009-01-01
Category : Hadron colliders
ISBN : 2940222347

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The Large Hadron Collider by Lyndon R. Evans Pdf

Describes the technology and engineering of the Large Hadron collider (LHC), one of the greatest scientific marvels of this young 21st century. This book traces the feat of its construction, written by the head scientists involved, placed into the context of the scientific goals and principles.

Measurements of Higgs Boson Properties in Proton-Proton Collisions at √s =7, 8 and 13 TeV at the CERN Large Hadron Collider

Author : Ulascan Sarica
Publisher : Springer Nature
Page : 103 pages
File Size : 49,9 Mb
Release : 2019-09-26
Category : Science
ISBN : 9783030254742

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Measurements of Higgs Boson Properties in Proton-Proton Collisions at √s =7, 8 and 13 TeV at the CERN Large Hadron Collider by Ulascan Sarica Pdf

This thesis documents the measurement of lifetime, width, mass, and couplings to two electroweak bosons of the recently-discovered Higgs boson using data from the CMS experiment at the Large Hadron Collider. Both on-shell (at the mass of around 125 GeV) and off-shell (above 200 GeV) Higgs boson production is studied and an excess of off-shell production with significance above two standard deviations is observed for the first time. The latter is a qualitative new way to study the Higgs field, responsible for generation of mass of all the known elementary particles. In addition, phenomenological tools have been developed with the Monte Carlo event generator and matrix element techniques for an optional analysis of LHC data. Optimization of the CMS data with careful alignment of the silicon tracker is also presented.

The God Particle

Author : Leon M. Lederman,Dick Teresi
Publisher : Houghton Mifflin Harcourt
Page : 452 pages
File Size : 47,5 Mb
Release : 2006
Category : Science
ISBN : 0618711686

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The God Particle by Leon M. Lederman,Dick Teresi Pdf

A fascinating tour of particle physics from Nobel Prize winner Leon Lederman. At the root of particle physics is an invincible sense of curiosity. Leon Lederman embraces this spirit of inquiry as he moves from the Greeks' earliest scientific observations to Einstein and beyond to chart this unique arm of scientific study. His survey concludes with the Higgs boson, nicknamed the God Particle, which scientists hypothesize will help unlock the last secrets of the subatomic universe, quarks and all--it's the dogged pursuit of this almost mystical entity that inspires Lederman's witty and accessible history.

Study of Double Parton Scattering Using Four-Jet Scenarios

Author : Paolo Gunnellini
Publisher : Springer
Page : 279 pages
File Size : 43,9 Mb
Release : 2015-08-24
Category : Science
ISBN : 9783319222134

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Study of Double Parton Scattering Using Four-Jet Scenarios by Paolo Gunnellini Pdf

This thesis addresses in a very new and elegant way several measurements and the extraction of so-called double parton scattering. The new and elegant way lies in the combination of measurements and a very smart extraction of double parton scattering results, which is easy to apply and overcomes many of the technical difficulties of older methods. Many new phenomena in particle physics can be observed when particles are collided at the highest energies; one of the highlights in recent years was the discovery of the Higgs boson at the Large Hadron Collider at CERN. Understanding the production mechanism of the Higgs boson at the LHC requires detailed knowledge of the physics of proton-proton collisions. When the density of partons in the protons becomes large, there is a non-negligible probability that more than one parton participates in the interaction and the so-called double parton scattering becomes important. In some cases very particular final state signatures can be observed, which can be regarded as an indication of such double partonic scattering and where the different interactions can be separated. Such multiple partonic interactions play an important role when precise predictions from known processes are required.

Measurements of Higgs Boson Properties in Proton-Proton Collisions at √s

Author : Ulascan Sarica
Publisher : Unknown
Page : 114 pages
File Size : 47,5 Mb
Release : 2019
Category : Higgs bosons
ISBN : 3030254755

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Measurements of Higgs Boson Properties in Proton-Proton Collisions at √s by Ulascan Sarica Pdf

This thesis documents the measurement of lifetime, width, mass, and couplings to two electroweak bosons of the recently-discovered Higgs boson using data from the CMS experiment at the Large Hadron Collider. Both on-shell (at the mass of around 125 GeV) and off-shell (above 200 GeV) Higgs boson production is studied and an excess of off-shell production with significance above two standard deviations is observed for the first time. The latter is a qualitative new way to study the Higgs field, responsible for generation of mass of all the known elementary particles. In addition, phenomenological tools have been developed with the Monte Carlo event generator and matrix element techniques for an optional analysis of LHC data. Optimization of the CMS data with careful alignment of the silicon tracker is also presented.

Particle Physics Reference Library

Author : Herwig Schopper
Publisher : Springer Nature
Page : 632 pages
File Size : 47,9 Mb
Release : 2020
Category : Elementary particles (Physics)
ISBN : 9783030382070

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Particle Physics Reference Library by Herwig Schopper Pdf

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

The Large Hadron Collider

Author : Lyndon Evans
Publisher : Unknown
Page : 305 pages
File Size : 51,9 Mb
Release : 2018
Category : Electronic
ISBN : 2889152820

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The Large Hadron Collider by Lyndon Evans Pdf

Measurement of Higgs Boson Decay Into B-quarks in Associated Production with a Top-quark Pair in Pp Collisions at [square Root]s

Author : [Study Group] ATLAS Collaboration CERN,Spyridon Argyropoulos,Fabian Becherer,Michael Böhler,Simona Gargiulo,Constantin Heidegger,Kim K. Heidegger,Beate Heinemann,Gregor Herten,David Hohn,Jan Cedric Hönig,Karl Jakobs,Peter Jenni,Thorwald Klapdor-Kleingrothaus,Andrea Knue,Karsten Köneke,Oleg Kuprash,Ulrich Landgraf,Valerie Lang,Alena Lösle,Veronika Magerl,Tetiana Moskalets,Ulrich Parzefall,Vladislavs Plesanovs,Arturo Rodriguez Rodriguez,Benoit Roland,Benjamin Rottler,Frederik Rühr,Zuzana Rúriková,Dirk Sammel,Frank Sauerburger,Katharina E. Schleicher,Céline Parat,Markus Schumacher,Shalu Solomon,Dennis Sperlich,Christian Weiser,Liv Wiik-Fuchs,Benedict T. Winter,Christopher Young,Daniele Zanzi,Stephanie Zimmermann,et al
Publisher : Unknown
Page : 0 pages
File Size : 51,6 Mb
Release : 2022
Category : Electronic
ISBN : OCLC:1374956706

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Measurement of Higgs Boson Decay Into B-quarks in Associated Production with a Top-quark Pair in Pp Collisions at [square Root]s by [Study Group] ATLAS Collaboration CERN,Spyridon Argyropoulos,Fabian Becherer,Michael Böhler,Simona Gargiulo,Constantin Heidegger,Kim K. Heidegger,Beate Heinemann,Gregor Herten,David Hohn,Jan Cedric Hönig,Karl Jakobs,Peter Jenni,Thorwald Klapdor-Kleingrothaus,Andrea Knue,Karsten Köneke,Oleg Kuprash,Ulrich Landgraf,Valerie Lang,Alena Lösle,Veronika Magerl,Tetiana Moskalets,Ulrich Parzefall,Vladislavs Plesanovs,Arturo Rodriguez Rodriguez,Benoit Roland,Benjamin Rottler,Frederik Rühr,Zuzana Rúriková,Dirk Sammel,Frank Sauerburger,Katharina E. Schleicher,Céline Parat,Markus Schumacher,Shalu Solomon,Dennis Sperlich,Christian Weiser,Liv Wiik-Fuchs,Benedict T. Winter,Christopher Young,Daniele Zanzi,Stephanie Zimmermann,et al Pdf

Abstract: The associated production of a Higgs boson and a top-quark pair is measured in events characterised by the presence of one or two electrons or muons. The Higgs boson decay into a b-quark pair is used. The analysed data, corresponding to an integrated luminosity of 139 fb−1, were collected in proton-proton collisions at the Large Hadron Collider between 2015 and 2018 at a centre-of-mass energy of s√ = 13 TeV. The measured signal strength, defined as the ratio of the measured signal yield to that predicted by the Standard Model, is 0.35+0.36−0.34. This result is compatible with the Standard Model prediction and corresponds to an observed (expected) significance of 1.0 (2.7) standard deviations. The signal strength is also measured differentially in bins of the Higgs boson transverse momentum in the simplified template cross-section framework, including a bin for specially selected boosted Higgs bosons with transverse momentum above 300 GeV

The Large Hadron Collider

Author : Don Lincoln
Publisher : JHU Press
Page : 238 pages
File Size : 55,9 Mb
Release : 2014-10-01
Category : Science
ISBN : 9781421414324

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The Large Hadron Collider by Don Lincoln Pdf

An insider's history of the world's largest particle accelerator, the Large Hadron Collider: why it was built, how it works, and the importance of what it has revealed. Since 2008 scientists have conducted experiments in a hyperenergized, 17-mile supercollider beneath the border of France and Switzerland. The Large Hadron Collider (or what scientists call "the LHC") is one of the wonders of the modern world—a highly sophisticated scientific instrument designed to re-create in miniature the conditions of the universe as they existed in the microseconds following the big bang. Among many notable LHC discoveries, one led to the 2013 Nobel Prize in Physics for revealing evidence of the existence of the Higgs boson, the so-called God particle. Picking up where he left off in The Quantum Frontier, physicist Don Lincoln shares an insider's account of the LHC's operational history and gives readers everything they need to become well informed on this marvel of technology. Writing about the LHC's early days, Lincoln offers keen insight into an accident that derailed the operation nine days after the collider's 2008 debut. A faulty solder joint started a chain reaction that caused a massive explosion, damaged 50 superconducting magnets, and vaporized large sections of the conductor. The crippled LHC lay dormant for over a year, while technical teams repaired the damage. Lincoln devotes an entire chapter to the Higgs boson and Higgs field, using several extended analogies to help explain the importance of these concepts to particle physics. In the final chapter, he describes what the discovery of the Higgs boson tells us about our current understanding of basic physics and how the discovery now keeps scientists awake over a nagging inconsistency in their favorite theory. As accessible as it is fascinating, The Large Hadron Collider reveals the inner workings of this masterful achievement of technology, along with the mind-blowing discoveries that will keep it at the center of the scientific frontier for the foreseeable future.

The Standard Theory of Particle Physics

Author : Luciano Maiani,Luigi Rolandi
Publisher : World Scientific Publishing Company
Page : 483 pages
File Size : 54,5 Mb
Release : 2016-08-25
Category : Science
ISBN : 9789814733519

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The Standard Theory of Particle Physics by Luciano Maiani,Luigi Rolandi Pdf

The book gives a quite complete and up-to-date picture of the Standard Theory with an historical perspective, with a collection of articles written by some of the protagonists of present particle physics. The theoretical developments are described together with the most up-to-date experimental tests, including the discovery of the Higgs Boson and the measurement of its mass as well as the most precise measurements of the top mass, giving the reader a complete description of our present understanding of particle physics.

Search for the Standard Model Higgs Boson in the H → ZZ → l + l - qq Decay Channel at CMS

Author : Francesco Pandolfi
Publisher : Springer Science & Business Media
Page : 128 pages
File Size : 53,6 Mb
Release : 2013-08-15
Category : Science
ISBN : 9783319009032

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Search for the Standard Model Higgs Boson in the H → ZZ → l + l - qq Decay Channel at CMS by Francesco Pandolfi Pdf

The theoretical foundations of the Standard Model of elementary particles relies on the existence of the Higgs boson, a particle which has been revealed for the first time by the experiments run at the Large Hadron Collider (LHC) in 2012. As the Higgs boson is an unstable particle, its search strategies were based on its decay products. In this thesis, Francesco Pandolfi conducted a search for the Higgs boson in the H → ZZ → l + l - qq Decay Channel with 4.6 fb -1 of 7 TeV proton-proton collision data collected by the Compact Muon Solenoid (CMS) experiment. The presence of jets in the final state poses a series of challenges to the experimenter: both from a technical point of view, as jets are complex objects and necessitate of ad-hoc reconstruction techniques, and from an analytical one, as backgrounds with jets are copious at hadron colliders, therefore analyses must obtain high degrees of background rejection in order to achieve competitive sensitivity. This is accomplished by following two directives: the use of an angular likelihood discriminant, capable of discriminating events likely to originate from the decay of a scalar boson from non-resonant backgrounds, and by using jet parton flavor tagging, selecting jets compatible with quark hadronization and discarding jets more likely to be initiated by gluons. The events passing the selection requirements in 4.6 fb -1 of data collected by the CMS detector are examined, in the search of a possible signal compatible with the decay of a heavy Higgs boson. The thesis describes the statistical tools and the results of this analysis. This work is a paradigm for studies of the Higgs boson with final states with jets. The non-expert physicists will enjoy a complete and eminently readable description of a proton-proton collider analysis. At the same time, the expert reader will learn the details of the searches done with jets at CMS.

Inclusive b Jet Production in Proton-Proton Collisions

Author : Patrick L.S. Connor
Publisher : Springer Nature
Page : 325 pages
File Size : 51,6 Mb
Release : 2019-11-29
Category : Science
ISBN : 9783030343835

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Inclusive b Jet Production in Proton-Proton Collisions by Patrick L.S. Connor Pdf

^ 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.

Discovery of the Higgs Boson

Author : Aleandro Nisati,Vivek Sharma
Publisher : World Scientific
Page : 128 pages
File Size : 43,8 Mb
Release : 2016-08-26
Category : Science
ISBN : 9789814425469

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Discovery of the Higgs Boson by Aleandro Nisati,Vivek Sharma Pdf

The recent observation of the Higgs boson has been hailed as the scientific discovery of the century and led to the 2013 Nobel Prize in physics. This book describes the detailed science behind the decades-long search for this elusive particle at the Large Electron Positron Collider at CERN and at the Tevatron at Fermilab and its subsequent discovery and characterization at the Large Hadron Collider at CERN. Written by physicists who played leading roles in this epic search and discovery, this book is an authoritative and pedagogical exposition of the portrait of the Higgs boson that has emerged from a large number of experimental measurements. As the first of its kind, this book should be of interest to graduate students and researchers in particle physics.

Radioactivity

Author : Michael F. L'Annunziata
Publisher : Elsevier
Page : 1148 pages
File Size : 53,5 Mb
Release : 2022-10-02
Category : Science
ISBN : 9780323984478

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Radioactivity by Michael F. L'Annunziata Pdf

Radioactivity: History, Science, Vital Uses and Ominous Peril, Third Edition provides an introduction to radioactivity, the building blocks of matter, the fundamental forces in nature, and the role of quarks and force carrier particles. This new edition adds material on the dichotomy between the peaceful applications of radioactivity and the threat to the continued existence of human life from the potential use of more powerful and sophisticated nuclear weapons. The book includes a current review of studies on the probability of nuclear war and treaties, nonproliferation and disarmament, along with historical insights into the achievements of over 100 pioneers and Nobel Laureates. Through multiple worked examples, the book answers many questions for the student, teacher and practitioner as to the origins, properties and practical applications of radioactivity in fields such as medicine, biological and environmental research, industry, safe nuclear power free of greenhouse gases and nuclear fusion. Ratings and Reviews of Previous Editions: CHOICE Magazine, July 2008: "This work provides an overview of the many interesting aspects of the science of radioactive decays, including in-depth chapters that offer reminiscences on the history and important personalities of the field...This book can be useful as supplemental reading or as a reference when developing course material for nuclear physics, nuclear engineering, or health physics lectures. Special attention has been given to a chapter on the role radioactivity plays in everyday life applications...Generally the book is well produced and will be a valuable resource...Many lectures can be lightened up by including material from this work. Summing up: RECOMMENDED. Upper division undergraduates through professionals; technical program students." U. Greife, Colorado School of Mines, USA "I found the biographical accounts of the various stalwarts of Physics inspirational. Most of them, if not all, had to overcome economic hardships or p[ersonal tragedies or had to do their groundbreaking work in the face of tyranny and war. The biographies also highlighted the high standards of moral convictions that the scientists had as they realized the grave implications of some of their work and the potential threats to humanity. This ought to inspire and motivate young men and women aspiring to be physicists. Even people who have been in the field for a while should find your book re-energizing. It certainly had that effect on me." -- Dr. Ramkumar Venkataraman, Canberra Industries, Inc., Meriden, CT, USA Winner of an Honorable Mention in the 2017 PROSE Awards in the category of Chemistry and Physics (https://proseawards.com/winners/2017-award-winners/ ) Includes new content that explains the vital benefits that nuclear technology provides and the need to be aware and involved in worldwide efforts toward the reduction of nuclear weapon stockpiles and the elimination of the threat of nuclear weapons Provides context and insights on key research over the past three centuries, placing radioactivity in real-world contexts Supports learning via multiple solved problems that answer practical questions concerning nuclear decay, nuclear radiation and the interaction of nuclear radiation with matter