The Beauty and the Boost: A Higgs Boson Tale

The Beauty and the Boost: A Higgs Boson Tale PDF Author: Brian Moser
Publisher: Springer Nature
ISBN: 3031394429
Category : Science
Languages : en
Pages : 250

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Book Description
Precision measurements of the Higgs boson’s properties are a powerful tool to look for deviations from the predictions of the Standard Model (SM) of particle physics. The 139/fb of proton-proton collision data which have been collected by the ATLAS experiment during Run 2 of the LHC, offer an opportunity to investigate rare Higgs-boson topologies, which are particularly sensitive to new physics scenarios but experimentally difficult to access. Several such measurements, which target Higgs-boson decays to heavy-flavour quarks, as well as their combinations are presented in this thesis. A novel analysis that measures Higgs-boson production in association with a heavy vector boson V (VH, with V=W,Z) at high energies is presented. Dedicated Higgs-boson reconstruction techniques are applied to reconstruct the highly Lorentz-boosted Higgs-boson decays into pairs of bottom quarks. The measurement is subsequently combined with a VH cross-section measurement at low and intermediate pT(V) to provide a differential cross-section measurement in kinematic fiducial volumes over the largest possible pT(V) range. All cross-section measurements agree with the SM predictions within relative uncertainties that range from 30% to 300%. The results are furthermore interpreted as limits on the parameters of a SM effective field theory. Finally, a combination of measurements of Higgs decays to heavy-flavour quarks is used to experimentally determine that the Higgs-boson coupling to charm quarks is weaker than to bottom quarks, as predicted by the SM. The target audience for the thesis are physicists and physics students, in particular those with a background in high energy physics.

The Beauty and the Boost: A Higgs Boson Tale

The Beauty and the Boost: A Higgs Boson Tale PDF Author: Brian Moser
Publisher: Springer Nature
ISBN: 3031394429
Category : Science
Languages : en
Pages : 250

Get Book Here

Book Description
Precision measurements of the Higgs boson’s properties are a powerful tool to look for deviations from the predictions of the Standard Model (SM) of particle physics. The 139/fb of proton-proton collision data which have been collected by the ATLAS experiment during Run 2 of the LHC, offer an opportunity to investigate rare Higgs-boson topologies, which are particularly sensitive to new physics scenarios but experimentally difficult to access. Several such measurements, which target Higgs-boson decays to heavy-flavour quarks, as well as their combinations are presented in this thesis. A novel analysis that measures Higgs-boson production in association with a heavy vector boson V (VH, with V=W,Z) at high energies is presented. Dedicated Higgs-boson reconstruction techniques are applied to reconstruct the highly Lorentz-boosted Higgs-boson decays into pairs of bottom quarks. The measurement is subsequently combined with a VH cross-section measurement at low and intermediate pT(V) to provide a differential cross-section measurement in kinematic fiducial volumes over the largest possible pT(V) range. All cross-section measurements agree with the SM predictions within relative uncertainties that range from 30% to 300%. The results are furthermore interpreted as limits on the parameters of a SM effective field theory. Finally, a combination of measurements of Higgs decays to heavy-flavour quarks is used to experimentally determine that the Higgs-boson coupling to charm quarks is weaker than to bottom quarks, as predicted by the SM. The target audience for the thesis are physicists and physics students, in particular those with a background in high energy physics.

The Beauty and the Boost: a Higgs Boson Tale

The Beauty and the Boost: a Higgs Boson Tale PDF Author: Brian Moser
Publisher:
ISBN: 9789464216370
Category :
Languages : en
Pages : 0

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Book Description


Higgs Force

Higgs Force PDF Author: Nicholas Mee
Publisher: James Clarke & Co.
ISBN: 0718892755
Category : Science
Languages : en
Pages : 330

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Book Description
Higgs Force tells the dramatic story of how physicists produced their modern understanding of the Cosmos by unlocking the secrets of matter. Physicists believe that the universe began in a state of perfect symmetry. As the universe expanded and the temperature fell, much of this symmetry was lost in an all-encompassing transformation. We see the results all around us - the evolution of a complex and dynamic universe supporting the existence of sentient life. Deep beneath the Franco-Swiss border, CERN, with the mighty Large Hadron Collider, is seeking the ultimate confirmation of these ideas - the elusive Higgs particle, known to some as the God Particle.

Quantum Field Theory in a Nutshell

Quantum Field Theory in a Nutshell PDF Author: Anthony Zee
Publisher: Princeton University Press
ISBN: 1400835321
Category : Science
Languages : en
Pages : 605

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Book Description
A fully updated edition of the classic text by acclaimed physicist A. Zee Since it was first published, Quantum Field Theory in a Nutshell has quickly established itself as the most accessible and comprehensive introduction to this profound and deeply fascinating area of theoretical physics. Now in this fully revised and expanded edition, A. Zee covers the latest advances while providing a solid conceptual foundation for students to build on, making this the most up-to-date and modern textbook on quantum field theory available. This expanded edition features several additional chapters, as well as an entirely new section describing recent developments in quantum field theory such as gravitational waves, the helicity spinor formalism, on-shell gluon scattering, recursion relations for amplitudes with complex momenta, and the hidden connection between Yang-Mills theory and Einstein gravity. Zee also provides added exercises, explanations, and examples, as well as detailed appendices, solutions to selected exercises, and suggestions for further reading. The most accessible and comprehensive introductory textbook available Features a fully revised, updated, and expanded text Covers the latest exciting advances in the field Includes new exercises Offers a one-of-a-kind resource for students and researchers Leading universities that have adopted this book include: Arizona State University Boston University Brandeis University Brown University California Institute of Technology Carnegie Mellon College of William & Mary Cornell Harvard University Massachusetts Institute of Technology Northwestern University Ohio State University Princeton University Purdue University - Main Campus Rensselaer Polytechnic Institute Rutgers University - New Brunswick Stanford University University of California - Berkeley University of Central Florida University of Chicago University of Michigan University of Montreal University of Notre Dame Vanderbilt University Virginia Tech University

Galileo Unbound

Galileo Unbound PDF Author: David D. Nolte
Publisher: Oxford University Press
ISBN: 0192528505
Category : Science
Languages : en
Pages : 384

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Book Description
Galileo Unbound traces the journey that brought us from Galileo's law of free fall to today's geneticists measuring evolutionary drift, entangled quantum particles moving among many worlds, and our lives as trajectories traversing a health space with thousands of dimensions. Remarkably, common themes persist that predict the evolution of species as readily as the orbits of planets or the collapse of stars into black holes. This book tells the history of spaces of expanding dimension and increasing abstraction and how they continue today to give new insight into the physics of complex systems. Galileo published the first modern law of motion, the Law of Fall, that was ideal and simple, laying the foundation upon which Newton built the first theory of dynamics. Early in the twentieth century, geometry became the cause of motion rather than the result when Einstein envisioned the fabric of space-time warped by mass and energy, forcing light rays to bend past the Sun. Possibly more radical was Feynman's dilemma of quantum particles taking all paths at once — setting the stage for the modern fields of quantum field theory and quantum computing. Yet as concepts of motion have evolved, one thing has remained constant, the need to track ever more complex changes and to capture their essence, to find patterns in the chaos as we try to predict and control our world.

Introduction to High Energy Physics

Introduction to High Energy Physics PDF Author: Donald H. Perkins
Publisher: Cambridge University Press
ISBN: 1139643371
Category : Science
Languages : en
Pages : 454

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Book Description
This highly-regarded text provides a comprehensive introduction to modern particle physics. Extensively rewritten and updated, this 4th edition includes developments in elementary particle physics, as well as its connections with cosmology and astrophysics. As in previous editions, the balance between experiment and theory is continually emphasised. The stress is on the phenomenological approach and basic theoretical concepts rather than rigorous mathematical detail. Short descriptions are given of some of the key experiments in the field, and how they have influenced our thinking. Although most of the material is presented in the context of the Standard Model of quarks and leptons, the shortcomings of this model and new physics beyond its compass (such as supersymmetry, neutrino mass and oscillations, GUTs and superstrings) are also discussed. The text includes many problems and a detailed and annotated further reading list.

The Theory of Almost Everything

The Theory of Almost Everything PDF Author: Robert Oerter
Publisher: Penguin
ISBN: 1101126744
Category : Science
Languages : en
Pages : 337

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Book Description
There are two scientific theories that, taken together, explain the entire universe. The first, which describes the force of gravity, is widely known: Einstein’s General Theory of Relativity. But the theory that explains everything else—the Standard Model of Elementary Particles—is virtually unknown among the general public. In The Theory of Almost Everything, Robert Oerter shows how what were once thought to be separate forces of nature were combined into a single theory by some of the most brilliant minds of the twentieth century. Rich with accessible analogies and lucid prose, The Theory of Almost Everything celebrates a heretofore unsung achievement in human knowledge—and reveals the sublime structure that underlies the world as we know it.

Engines of Liberty

Engines of Liberty PDF Author: David Cole
Publisher: Basic Books
ISBN: 0465098517
Category : Law
Languages : en
Pages : 322

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Book Description
From the national legal director of the ACLU, an essential guidebook for anyone seeking to stand up for fundamental civil liberties and rights One of Washington Post's Notable Nonfiction Books of 2016 In an age of executive overreach, what role do American citizens have in safeguarding our Constitution and defending liberty? Must we rely on the federal courts, and the Supreme Court above all, to protect our rights? In Engines of Liberty, the esteemed legal scholar David Cole argues that we all have a part to play in the grand civic dramas of our era -- and in a revised introduction and conclusion, he proposes specific tactics for fighting Donald Trump's policies. Examining the most successful rights movements of the last thirty years, Cole reveals how groups of ordinary Americans confronting long odds have managed, time and time again, to convince the courts to grant new rights and protect existing ones. Engines of Liberty is a fundamentally new explanation of how our Constitution works and the part citizens play in it.

The Crisis Caravan

The Crisis Caravan PDF Author: Linda Polman
Publisher: Metropolitan Books
ISBN: 1429955767
Category : Political Science
Languages : en
Pages : 239

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Book Description
A no-holds-barred, controversial exposé of the financial profiteering and ambiguous ethics that pervade the world of humanitarian aid A vast industry has grown up around humanitarian aid: a cavalcade of organizations—some 37,000—compete for a share of the $160 billion annual prize, with "fact-inflation" sometimes ramping up disaster coverage to draw in more funds. Insurgents and warring governments, meanwhile, have made aid a permanent feature of military strategy: refugee camps serve as base camps for genocidaires, and aid supplies are diverted to feed the troops. Even as humanitarian groups continue to assert the holy principle of impartiality, they have increasingly become participants in aid's abuses. In a narrative that is impassioned, gripping, and even darkly absurd, journalist Linda Polman takes us to war zones around the globe—from the NGO-dense operations in "Afghaniscam" to the floating clinics of Texas Mercy Ships proselytizing off the shores of West Africa—to show the often compromised results of aid workers' best intentions. It is time, Polman argues, to impose ethical boundaries, to question whether doing something is always better than doing nothing, and to hold humanitarians responsible for the consequences of their deeds.

Physics of the Impossible

Physics of the Impossible PDF Author: Michio Kaku
Publisher: Anchor
ISBN: 0385525443
Category : Science
Languages : en
Pages : 354

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Book Description
NATIONAL BESTSELLER • Inspired by the fantastic worlds of Star Trek, Star Wars, and Back to the Future, the renowned theoretical physicist and national bestselling author of The God Equation takes an informed, serious, and often surprising look at what our current understanding of the universe's physical laws may permit in the near and distant future. Teleportation, time machines, force fields, and interstellar space ships—the stuff of science fiction or potentially attainable future technologies? Entertaining, informative, and imaginative, Physics of the Impossible probes the very limits of human ingenuity and scientific possibility.