Author: H.M. Fried
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 438
ISBN-13: 1475704410
DOWNLOAD EBOOK →This Advanced Study Institute (ASI) brought together two distinct ·"schools of approach" to Quantum Electrodynamics (QED) in the presence of intense, external, electromagnetic fields, in an effort to lay a joint foundation for a needed theoretical explanation of the sharp e+ e- "resonances" observed in the scattering of very heavy IOns. These (GSI/Darmstadt) experiments, whose history, latest reconfirmations, and most recent data were presented in three opening sessions (Bokemeyer, Koenig), show a smooth background of positron (e+) production, as a function of e+ kinetic energy. Superimposed upon this background are four very sharp peaks, of narrow widths (~ 30 KeV) and of clear experimental significance ('" 5 standard deviations). Most ofthese peaks correspond to sharp, essentially back-to-back electron-positron emission in the ions' center of mass. Following the approach of "supercritical" potential theory (SPT), where the total ionic charge unit Z satisfies Z > 137, it has been possible to provide a detailed and apparently correct understanding of the smooth e+ e- background; a coherent description of different facets of this approach, emphasizing the nature of the charged, supercritical vacuum, was described by the authors responsible for the invention of SPT (Greiner, Muller, Rafelski). In addition, predictions for related phenomena were outlined by other lecturers using the SPT approach (Bawin, Soff, SsJrensen).
Author: Liudmila Borisovna Boldyreva
Publisher: Cambridge Scholars Publishing
Published: 2021-04
Total Pages:
ISBN-13: 9781527564558
DOWNLOAD EBOOK →This book will be of interest not only to physics scholars who are studying the theoretical aspects of quantum mechanics, electromagnetism, superconductivity and superfluidity, but also to the more general reader. It explores the action of biologically active substances and low-intensity physical factors in ultra-low doses on biological systems, particularly the action of medicinal remedies in ultra-low doses (homeopathy), influence of the color and form of ambient bodies, and the so-called Twin Correlation.
Author: L.N. Rozanov
Publisher: CRC Press
Published: 2002-04-04
Total Pages: 364
ISBN-13: 9780415273510
DOWNLOAD EBOOK →Vacuum technology finds itself in many areas of industry and research. These include materials handling, packaging, gas sampling, filtration, degassing of oils and metals, thin-film coating, electron microscopy, particle acceleration, and impregnation of electrical components. It is vital to design systems that are appropriate to the application, and with so many potential solutions this can become overwhelming. Vacuum Technique provides an overview of vacuum technology, its different design methodologies, and the underlying theory. The author begins with a summary of the properties of low-pressure gases, then moves on to describe mathematical modeling of gas transfer in the vacuum system, the operation of pumps and gauges, computer-aided synthesis and analysis of systems, and the design of different vacuum systems. In particular, the author discusses the structure and characteristics of low, middle, high, and superhigh vacuum systems, as well as the characteristics of joints, materials, movement inputs, and all aspects of production technology and construction standards. Using specific examples rather than describing the various elements, Vacuum Technique supplies engineers, technicians, researchers, and students with needed expertise and a comprehensive guide to designing, selecting, and using an appropriate vacuum system for a specific purpose.
Author: E. V. Shuryak
Publisher: World Scientific Publishing Company Incorporated
Published: 1988
Total Pages: 401
ISBN-13: 9789971978334
DOWNLOAD EBOOK →This is probably the only textbook available that gathers QCD, many-body theory and phase transitions in one volume. The presentation is pedagogical and readable. It provides materials interesting to both students and researchers of astrophysics, nuclear physics and high energy physics.
Author: M.A. Shifman
Publisher: Elsevier
Published: 1992-12-23
Total Pages: 529
ISBN-13: 044459616X
DOWNLOAD EBOOK →The method of the QCD sum rules was and still is one of the most productive tools in a wide range of problems associated with the hadronic phenomenology. Many heuristic ideas, computational devices, specific formulae which are useful to theorists working not only in hadronic physics, have been accumulated in this method. Some of the results and approaches which have originally been developed in connection with the QCD sum rules can be and are successfully applied in related fields, such as supersymmetric gauge theories, nontraditional schemes of quarks and leptons etc. The amount of literature on these and other more basic problems in hadronic physics has grown enormously in recent years. This volume presents a collection of papers which provide an overview of all basic elements of the sum rule approach and priority has been given to those works which seemed most useful from a pedagogical point of view.
Author: Greiner W. Hold
Publisher: Springer Science & Business Media
Published: 2013-06-29
Total Pages: 896
ISBN-13: 1489921397
DOWNLOAD EBOOK →The NATO Advanced Study Institute on Quantum Electrodynamics of Strong Fields was held at Lahnstein on the Rhine from 15-26 June, 1981. The school was devoted to the advances, theoretical and exper imental, in the physics of strong fields made during the past decade. The topic of the first week was almost exclusively quantum electrodynamics, with discussions of symmetry breaking in the ground state, of the physics of heavy ion collisions and of precision tests of perturbative quantum electrodynamics. This was followed in the second week by the presentation of a broad range of other areas where strong fields occur, reaching from nuclear physics over quantum chromodynamics to gravitation theory and astrophysics. We were fortunate to be able to call on a body of lecturers who not only have made considerable personal contributions to these advances but who are also noted for their lecturing skills. Their dedication for their subject was readily transmitted to the stu dents resulting in a very successful school. This enthusiasm is also reflected in their contributions to these Proceedings which, as I believe, will in time become a standard source of reference for future work on the physics of strong fields and will help to spread the benefits of the school to a larger audience than those who were able to attend. I regret that the Soviet colleagues Ya. B. Zeldovich and V. S. Popov were unable to participate.
Author: Ilie Pȃrvu
Publisher: Springer
Published: 2015-05-29
Total Pages: 295
ISBN-13: 3319166557
DOWNLOAD EBOOK →This book presents a collection of studies by Romanian philosophers, addressing foundational issues currently debated in contemporary philosophy of science. It offers a historical survey of the tradition of scientific philosophy in Romania. It examines some problems in the foundations of logic, mathematics, linguistics, the natural and social sciences. Among the more specific topics, it discusses scientific explanation, models, and mechanisms, as well as memory, artifacts, and rules of research. The book is useful to those interested in the philosophy of real science, but also to those interested in Romanian philosophy.
Author: Richard G. Carter
Publisher: Cambridge University Press
Published: 2018-04-12
Total Pages: 843
ISBN-13: 0521198623
DOWNLOAD EBOOK →Get up-to-speed on the theory, principles and design of vacuum electron devices.
Author: Assistant Professor of Philosophy Simon Saunders
Publisher: Oxford University Press on Demand
Published: 1991
Total Pages: 291
ISBN-13: 9780198244493
DOWNLOAD EBOOK →* Contains a hitherto untranslated paper by Einstein.The vacuum is fast emerging as the central structure of modern physics. How is this possible? What is the vacuum concept, and why is it so important? This collection brings together philosophically-minded specialists who engage these issues in the context of classical gravity, quantumelectrodynamics, and the grand unification programme. The vacuum emerges as the synthesis of concepts of space, time, and matter; in the context of relativity and the quantum this new synthesis represents a structure of the most intricate and novel complexity. The Philosophy of Vacuum is unashamedly a project in metaphysics. The science of our time has transformed the concepts of space and time and of force and matter, yet the philosophy of Bohr and his school has found small purchase on the contemporary concerns of physics, and there are few guidelinesto be found within the empiricist tradition of contemporary philosophy. However slippery the conundrums of metaphysical realism, the message of contemporary science remains the same: concepts and heuristics are grounded in consideration of what exists in the world. Here, then, is a work in modernmetaphysics, in which the concepts of substance and space interweave in the most intangible of forms, the background and context of our physical experience: vacuum, void or nothingness.