Phenomenology Of Unified Theories

A systematic introduction to string phenomenology, outlining how string theory is connected to the real world of particle physics.

Newell introduces Soar, an architecture for general cognition. A pioneer system in AI, Soar is the first problem-solver to create its own subgoals and learn continuously from its own experience. Its ability to operate within the real-time constraints of intelligent behavior illustrates important characteristics of human cognition.

This book offers fresh perspective on the role of phenomenology in the philosophy of physics which opens new avenues for discussion among physicists, "standard" philosophers of physics and philosophers with phenomenological leanings. Much has been written on the interrelations between philosophy and physics in the late 19th and early 20th century, and on the emergence of philosophy of science as an autonomous philosophical sub-discipline. This book is about the under-explored role of phenomenology in the development and the philosophical interpretation of 20th century physics. Part 1 examines questions about the origins and value of phenomenological approaches to physics. Does the work of classical phenomenologists such as Husserl, Merleau-Ponty or Heidegger contain elements of systematic value to both the practice and our philosophical understanding of physics? How did classical phenomenology influence “standard” philosophy of science in the Anglo-American and other traditions? Part 2 probes questions on the role of phenomenology in the philosophies of physics and science: - Can phenomenology help to solve “Wigner’s puzzle”, the problem of the "unreasonable effectiveness" of mathematics in describing, explaining and predicting empirical phenomena? - Does phenomenology allow better understanding of the principle of gauge invariance at the core of the standard model of contemporary particle physics? - Does the phenomenological notion of “Lifeworld” stand in opposition to the “scientific metaphysics” movement, or is there potential for dialogue? Part 3 examines the measurement problem. Is the solution outlined by Fritz London and Edmond Bauer merely a re-statement of von Neumann’s view, or should it be regarded as a distinctively phenomenological take on the measurement problem? Is phenomenology a serious contender in continuing discussions of foundational questions of quantum mechanics? Can other interpretational frameworks such as quantum Bayesianism benefit from implementing phenomenological notions such as constitution or horizonal intentionality?

Supersymmetry or SUSY, one of the most beautiful recent ideas of physics, predicts sparticles existing as superpartners of particles. This book gives a theoretical and phenomenological account of sparticles. Starting from a basic level, it provides a comprehensive, pedagogical and user-friendly treatment of the subject of four-dimensional N=1 supersymmetry as well as its observational aspects in high energy physics and cosmology. Part One of the book introduces the requisite formal theory, preceded by a discussion of the naturalness problem. Part Two describes the supersymmetrization of the Standard Model of particle interactions as well as the origin of soft supersymmetry breaking and how it can be mediated from higher energies. Search strategies for sparticles, supersymmetric Higgs bosons, nonminimal scenarios and cosmological implications are some of the other topics covered. Novel features of the book include a dictionary between two-component and four-component spinor notation, a step-by-step derivation of the nonrenormalization theorem, an extended discussion of supersymmetric renormalization group evolution, detailed analyses of minimal and nonminimal models with gravity (including anomaly) mediated and gauge mediated supersymmetry breaking as well as elaborate self-contained presentations of collider signals of sparticles plus supersymmetric Higgs bosons and of supersymmetric cosmology. Appendices list all Feynman rules for the vertices of the Minimal Supersymmetric Standard Model. Contents:Introduction and Overview:Supersymmetry: Why and HowSupersymmetry Formalism:PreliminariesAlgebraic AspectsFree Superfields in SuperspaceInteracting SuperfieldsSuperspace Perturbation Theory and SupergraphsGeneral Aspects of Supersymmetry BreakingSupersymmetry Phenomenology:Basic Structure of the MSSMSoft Supersymmetry Breaking in the MSSMHiggs Bosons in the MSSMEvolution from Very High EnergiesGravity Mediated Supersymmetry BreakingGauge Mediated Supersymmetry BreakingBeyond the MSSMSupersymmetry at CollidersSupersymmetric CosmologyConclusion: Wish List, Roadmap and Fine Tuning Readership: Graduate students, teachers and researchers in theoretical as well as experimental high energy physics. Keywords:Reviews: “I find the book very attractive and very useful at this time. There are not so many up-to-date books for the LHC phenomenology.” G Altarelli CERN “It seeks to be the complete primer on supersymmetry for the theorist, phenomenologist and experimentalist. The presentation is lucid throughout and the notation is well-chosen. This is a highly recommended book for the student of particle physics who has studied the basics of quantum field theory and the phenomenon of the known elementary particles. In addition, it is a handy source of information (and most valuably, explanations) for senior students and practicing physicists in other areas, who will increasingly feel the need to know about the area of fundamental science most finely poised for a dramatic experimental breakthrough.” Current Science “… very informative book on supersymmetric particles …” Professor Barry Barish California Institute of Technology “Very good text. Although suitable for those who want to begin working in the field, nonexperts can get substantial insights into the goals and motivation behind the theory by browsing through. The book begins with a good pedagogical treatment of the superspace formalism and ends with an extensive summary of Feynman rules. About 300 pages cover the phenomenology of supersymmetry — from colliders to dark matter — with significant discussion of supersymmetry breaking and a 30-page chapter on supersymmetric Higgs bosons.” Physics Today

Essays on the relationship between perceptual experience and scientific thought—an introduction to the phenomenology of science.