Higgs Potential and Naturalness After the Higgs Discovery

Higgs Potential and Naturalness After the Higgs Discovery
Author: Yuta Hamada
Publisher: Springer
Total Pages: 107
Release: 2017-01-30
Genre: Science
ISBN: 9811034184

This thesis focuses on the theoretical foundation of the Standard Model valid up to the Planck scale, based on the current experimental facts from the Large Hadron Collider. The thesis consists of two themes: (1) to open up a new window of the Higgs inflation scenario, and (2) to explore a new solution to the naturalness problem in particle physics. In the first area, on the Higgs inflation scenario, the author successfully improves a large value problem on a coupling constant relevant to the Higgs mass in the Standard Model, in which the coupling value of the order of 105 predicted in a conventional scenario is reduced to the order of 10. This result makes the Higgs inflation more attractive because the small value of coupling is natural in the context of ultraviolet completion such as string theory. In the second area, the author provides a new answer to the naturalness problem, of why the cosmological constant and the Higgs mass are extremely small compared with the Planck scale. Based on the baby universe theory originally proposed by Coleman, the smallness of those quantities is successfully explained without introducing any additional new particles relevant at the TeV energy scale.

The Higgs Mechanism Explained

The Higgs Mechanism Explained
Author: Jaryd Ulbricht
Publisher: Enslow Publishing, LLC
Total Pages: 82
Release: 2018-07-15
Genre: Young Adult Nonfiction
ISBN: 0766099598

The Standard Model explains how the universe works at distances a billion times smaller than the size of an atom. However, in the Standard Model, none of the particles have mass, yet one only has to look around to see that things do have mass. Explaining the source of mass has been the goal of particle physicists for over half a century, culminating in the discovery of the Higgs boson at the Large Hadron Collider in 2012. Supporting the Next Generation Science Standards' emphasis on scientific collection and analysis of data and evidence-based theories, this book simplifies the difficult concept of the Higgs mechanism through analogies to everyday experiences as well as pictures, diagrams, and intuitive explanations.

The God Particle

The God Particle
Author: Leon M. Lederman
Publisher: Houghton Mifflin Harcourt
Total Pages: 452
Release: 2006
Genre: Science
ISBN: 9780618711680

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.

Higgs Discovery

Higgs Discovery
Author: Lisa Randall
Publisher: Harper Collins
Total Pages: 94
Release: 2012-07-24
Genre: Science
ISBN: 0062245317

On July 4, 2012, physicists at the Large Hadron Collider in Geneva madehistory when they discovered an entirely new type of subatomic particle that many scientists believe is the Higgs boson. For forty years, physicists searched for this capstone to the Standard Model of particle physics—the theory that describes both the most elementary components that are known in matter and the forces through which they interact. This particle points to the Higgs field, which provides the key to understanding why elementary particles have mass. In Higgs Discovery, Lisa Randall explains the science behind this monumental discovery, its exhilarating implications, and the power of empty space.

Supersymmetry After the Higgs Discovery

Supersymmetry After the Higgs Discovery
Author: Ignatios Antoniadis
Publisher: Springer
Total Pages: 178
Release: 2014-08-18
Genre: Science
ISBN: 3662441721

Supersymmetry (SUSY) is a new symmetry that relates bosons and fermions, which has strong support at both the mathematical and the physical level. This book offers a comprehensive review, following the development of SUSY from its very early days up to present. The order of the contributions should provide the reader with the historical development as well as the latest theoretical updates and interpretations, and experimental constraints from particle accelerators and dark matter searches. It is a great pleasure to bring together here contributions from authors who initiated or have contributed significantly to the development of this theory over so many years. To present a balanced point of view, the book also includes a closing contribution that attempts to describe the physics beyond the Standard Model in the absence of SUSY. The contributions to this book have been previously published in The European Physical Journal C - Particles and Fields.

Higgs

Higgs
Author: J. E. Baggott
Publisher: Oxford University Press
Total Pages: 300
Release: 2013-06-06
Genre: Science
ISBN: 0199679576

Relates the history of the search for the Higgs boson, also known as the "God" particle.

Perspectives On Higgs Physics

Perspectives On Higgs Physics
Author: Gordon Kane
Publisher: World Scientific
Total Pages: 487
Release: 1993-01-08
Genre: Science
ISBN: 9814518042

The masses of fermions and gauge bosons enter the Standard Model through the Higgs mechanism, which is satisfactory technically but is not understood physically. We do not know what nature really does to give mass to particles, nor what experimental clues will lead us to nature's solution. Understanding Higgs physics is necessary in order to complete the Standard Model, and to learn how to extend it and improve its foundations.This book is a collection of current work and thinking about these questions by active workers. It speculates about what form the answers will take, as well as updates and extends previous books and reviews. Some chapters emphasize theoretical questions, some focus on connections with other areas of physics, and some discuss how we can get the data to uncover nature's solution.

Higgs Properties at the LHC

Higgs Properties at the LHC
Author: Jason Tsz Shing Yue
Publisher: Springer
Total Pages: 143
Release: 2017-08-29
Genre: Science
ISBN: 331963402X

This thesis studies the properties of the Higgs particle, discovered at the Large Hadron Collider (LHC) in 2012, in order to elucidate its role in electroweak symmetry breaking and cosmological phase transition in the early universe. It shows that a generic spin-2 Higgs impostor is excluded by the precision measurements of electroweak observables and perturbative unitarity considerations. It obtains LHC constraints on anomalous CP-violating Higgs-Top Yukawa couplings and examines the prospects of their measurement in future experiments. Lastly, it discusses in detail the electroweak phase transition and generation of cosmological matter–antimatter asymmetry in the universe with anomalous Higgs couplings.

Recent Developments in Gauge Theories

Recent Developments in Gauge Theories
Author: G. 't Hooft
Publisher: Springer Science & Business Media
Total Pages: 437
Release: 2013-03-09
Genre: Science
ISBN: 1468475711

Almost all theories of fundamental interactions are nowadays based on the gauge concept. Starting with the historical example of quantum electrodynamics, we have been led to the successful unified gauge theory of weak and electromagnetic interactions, and finally to a non abelian gauge theory of strong interactions with the notion of permanently confined quarks. The. early theoretical work on gauge theories was devoted to proofs of renormalizability, investigation of short distance behaviour, the discovery of asymptotic freedom, etc . . , aspects which were accessible to tools extrapolated from renormalised perturbation theory. The second phase of the subject is concerned with the problem of quark confinement which necessitates a non-perturbative understanding of gauge theories. This phase has so far been marked by the introduc tion of ideas from geometry, topology and statistical mechanics in particular the theory of phase transitions. The 1979 Cargese Institute on "Recent Developments on Gauge Theories" was devoted to a thorough discussion of these non-perturbative, global aspects of non-abelian gauge theories. In the lectures and seminars reproduced in this volume the reader wilf find detailed reports on most of the important developments of recent times on non perturbative gauge fields by some of the leading experts and innovators in this field. Aside from lectures on gauge fields proper, there were lectures on gauge field concepts in condensed matter physics and lectures by mathematicians on global aspects of the calculus of variations, its relation to geometry and topology, and related topics.