Jihn E. Kim – författare

This book is a guide for all those who want to explore the standard model using string theory. The approach pursued is “halfway” between a textbook and advanced research work and, accordingly, the book will allow both graduate students and particle phenomenologists to easily get acquainted with this fascinating field.In this new edition the authors report on the status quo of the standard model following the discovery of the Higgs Boson, as well as the latest results concerning physics beyond the standard model. They present a formal introduction to string orbifolds and explain in detail how the massless states and the Kaluza-Klein spectra can be derived from the partition function. In turn, they provide an overview of orbifold phenomenology, by introducing the key aspects of string orbifolds in the context of SUSY standard models. In closing, the authors discuss the Grand Unified Theories (GUTs) from orbifolds and share key concepts regarding Calabi-Yau compactifications, M-theory and F-theory.

Using the successful standard model of particle physics but without clear guidance beyond it, it is a di?cult task to write a physics book beyond the standard model from a phenomenological point of view. At present, there is no major convincing inner space related experimental evidence against the standard model. The neutrino oscillation phenomena can be considered part of it by including a singlet ?eld in the spectrum. Only the outer space - servations on matter asymmetry, dark matter, and dark energy hint at the phenomenological need for an extension; however, there has been theoretical need for almost three decades, chie?y because of the gauge hierarchy problem in the standard model. Thus, it seems that going beyond the standard model hinges on the des- ability of resolving the hierarchy problem. At the ?eld theory level, it is fair to say that the hierarchy problem is not as desperate as the nonrenormalizab- ity problem present in the old V–A theory of weak interactions on the road to the standard model. An extension beyond the standard model can easily be ruled out as witnessed in the case of technicolor. However, a consistent framework with supersymmetry for a resolution of the hierarchy problem has been around for a long time. Even its culprit “superstring” has been around for twenty years, and the most remarkable thing about this supersymmetric extension is that it is still alive.

The most recent LEP data is included in the lectures. The subjects include Higgs physics, KM angles, weak CP violation, neutron electric dipole moment, SUSY phenomenology, radiative corrections, and e+e- experiments.

The major topics in this volume are electroweak physics (including LEP physics and radiative corrections), CP violation and lepton number nonconservation, and neutrino physics and astroparticle physics. The latest progress in both the theoretical and the experimental aspects of the topics is discussed.

Supersymmetry, supergravity and superstring are the most popular research topics in particle physics. In particular, the phenomenological studies beyond the standard model have become very popular in view of possible identification or exclusion of supersymmetric particles in the future. Also, the lightest supersymmetric particle in most supersymmetric models can be a good candidate for dark matter in the universe.The recent developments in supersymmetry with important applications to particle physics are the main theme of this book, which includes superstring calculations with D-branes, TeV-scale gravity, superstring- and supergravity-inspired interactions, supersymmetric GUT, supergravity phenomenology, and cosmological implications of LSP.

This book presents reviews and new findings in the field of the very early universe, where the interests of particle theorists and astrophysicists meet. Also, WIMP search experiments are reported.

History of Particle Theory fills an important gap existing in the literature by discussing the impressive progress in understanding the elementary particles out of which all everyday objects are made. Most of this progress has happened in the last seventy years after the theory of quantum electrodynamics (QED) was perfected as an extremely accurate description of electromagnetic interactions. This astonishing sequence of discoveries was made hand in hand between theory and experiment. This book concentrates only on theory where giant steps were made by a series of exceptionally creative physicists, and this is portrayed as an essential part of the broader spectrum of human knowledge and culture, which is constantly being similarly extended by the creative individuals such as the two mentioned in the subtitle, Between Darwin and Shakespeare, who both significantly changed Western Civilization by ideas in Biology and in English Literature respectively.In the last forty years, the standard model has been confirmed again and again as the correct description of elementary particles up to energies of a thousand times the proton mass. In the discussion of particle theory and theoretical physics in general, the book starts from well over two thousand years ago, going back to the ancient Greeks such as Democritus and Archimedes, until the 17th century, when the extraordinary intellect of Newton changed everything by demonstrating that not only objects in the laboratory but also heavenly bodies are governed by mathematical equations. There followed what can be called Darwinian evolution in theoretical physics, survival of the fittest theories, by loose analogy with the origin of biological species.The present standard model of particle theory surely cannot be the final word because it contains far too many free parameters. The book contains a penultimate chapter discussing a number of such open problems which exist in particle theory. There is then a closing chapter, not related to the rest of the book, providing a series of quotations written in the 16th and 17th centuries by Shakespeare and here applied to particle theory. The inclusion of this is based on our premise that particle theory is just one out of several opportunities for exceptional human creativity.