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Books > Science & Mathematics > Physics > Atomic & molecular physics
Vividly and in some depth retraces the golden years of particle physics as witnessed by one of the scientists who made seminal contributions to the understanding of what is now known as the Standard Model of particle physics. It will provide the interested reader with a first-hand account and deeper understanding of the multilayered and sinous development that finally led to the present architecture of this theory. Combines particle physics with insightful stories about fellow physicists of some note and the political turmoil of his times.
Analytical measurements at the single molecule level under ambient conditions have become almost routine in the past few years. The application of this technology to fundamental studies of heterogeneity in biomolecular structure and dynamics, chemical and biological reaction kinetics and photophysics provides a rich playground for molecular scientists. The potential use of single molecule detection for nanotechnology and quantum information processing is a new and almost unexplored area. This handbook is intended for those interested in a practical introduction to single molecule investigations using fluorescence techniques and places special emphasis on the practicalities of achieving single molecule resolution, analyzing the resulting data and exploration of the applications in biophysics. It is ideal for graduate research students and others embarking on work in this exciting field.
The 11th International Conference on X-Ray Lasers had contributions in the following topical areas: Transient Collisional X-Ray Lasers, Table-Top High Repetition Rate X-Ray Lasers, Optical-Field Ionised (OFI) X-Ray Lasers, Theory and Simulation of X-Ray Lasers, High Order Harmonic Generation, XUV Optics and X-Ray Laser Applications, Capillary Discharge X-Ray Lasers, Alternative Sources of coherent XUV Radiation. The proceedings of this conference constitute a comprehensive source of reference for scientists involved in researching the development and application of coherent X-Ray sources.
This book discusses the interaction of light with atoms, concentrating on the semiclassical descriptions of the processes. It begins by discussing the classical theory of electromagnetic radiation and its interaction with a classical charged dipole oscillator. Then, in a pivotal chapter, the interaction with a free charge is described (the Compton effect); it is shown that, in order to give agreement with observation, certain quantum rules must be introduced. The book then proceeds to discuss the interaction from this point of view-light always being described classically, atoms described quantum-mechanically, with quantum rules for the interaction. Subsequent chapters deal with stimulated emission and absorption, spontaneous emission and decay, the general problem of light stimulating and being scattered from the two-state atom, the photoelectric effect, and photoelectric counting statistics. Finally the author gives a personal view on the nature of light and his own way of looking at certain paradoxes. The writing of this book was originally conceived as a collaboration between the present author and a colleague of former years, Alan V. Durrant. Indeed, some preliminary exchange of ideas took place in the mid-1970s. But the problems of joint-authorship from antipodean positions proved too difficult and the project was abandoned. I would like to record my indebted ness to him for the stimulation of this early association. I also acknowledge the encouragement of my colleagues at the Univer sity of Otago. Special reference must be made to D. M."
Electron and Photon Impact Ionisation and Related Topics 2002 provides an overview of recent international research in the field of ionization by electron and photon impact. Emphasizing multi-particle coincidence studies, such as (e,2e), (e,3e), ionization-excitation, and double photo-ionization, the book contains 18 contributions of recent experimental, theoretical, and computational achievements in the realization, interpretation, and modeling of correlated processes that involve a wide range of targets, including atoms, molecules, and surfaces. It also covers nuclear reactions and interaction of electrons, photons, and ions with biological matter. This book is an essential reference for researchers working in atomic and molecular physics, surface science, chemistry, and biophysics.
During the last two decades the experimental investigation of atomic coherence phenomena has made rapid progress. Detailed studies have been performed of angular correlations, spin polarization effects, angular momen tum transfer, and the alignment parameters which characterize the charge cloud of excited atoms. The enormous growth in the number of these investigations was made possible through substantial development and application of new experimental technology, the development of sophisti cated theoretical models and numerical methods, and a fine interplay between theory and experiment. This interplay has resulted in a deeper understanding of the physical mechanisms of atomic collision processes. It is the purpose of the chapters in this book to provide introductions for nonspecialists to the various fields of this area as well as to present new experimental and theoretical results and ideas. The interest in spin-dependent interactions in electron-atom scattering has a long history; it dates back to the early investigations of Mott in 1929. While the more traditional measurements in this field were concerned with the determination of spin polarization and asymmetries, the range of investi gations has been expanded enormously during the last few years and now includes many observables sensitive to one or more of the various spin dependent interactions. The understanding of these effects requires a theoretical description of the orientation and alignment parameters of the target atoms, of the forma tion of resonances, of the influence of electron-exchange processes, and of the relativistic interactions inside the atom and between projectile and target."
Particle production is an important topic in nuclear and particle physics. At high energies, particle production is considered to proceed via parton branching and subsequent fragmentation into hadrons. The study of the dynamics of this process and the study of the structure of hadrons in the context of quantum chromodynamics (QCD) belong to the challenges of the standard model of elementary particle physics, requiring new, nonperturba tive approaches in field theory. Within a nucleus, many-body dynamics is important and particle production may be used to determine many features of a non-equilibrium quantum system at low or high temperatures. At this Advanced Study Institute the different aspects of particle pro duction were expanded upon in a series of lectures given by experts in their fields, covering topics ranging from near-threshold meson production in proton-proton collisions to correlations in multi-GeV jet fragmentation in high-energy scattering processes and signals of a quark-gluon plasma formed in ultra-relativistic heavy-ion collisions. Strong emphasis was placed not only on state of the art research, but also on the necessary physics back ground. The lectures were supplemented by problem sets and discussion sessions. There was also time for students to present short contributions on their research."
Selected modern aspects of artificially layered structures and bulk materials involving antiferromagnetic long-range order are the main themes of this book. Special emphasis is laid on the prototypical behavior of Ising-type model systems. They play a crucial role in the field of statistical physics and, in addition, contribute to the basic understanding of the exchange bias phenomenon in MBE-grown magnetic heterosystems. Throughout the book, particular attention is given to the interplay between experimental results and their theoretical description, ranging from the famous Lee-Yang theory of phase transitions to novel mechanisms of exchange bias.
Proceedings of the 6th International Workshop on Application of Lasers in Atomic Nuclei Research, LASER 2004, held in Poznan, Poland, 24-27 May, 2004 Blaszczak, Zdzislaw; Marinova, Krassimira; Markov, Boris (Eds.) 2006, ISBN: 3-540-30925-X This volume contains papers presented at the 6th International Workshop on Application of Lasers in Atomic Nuclei Research, LASER 2004, held in Poznan, Poland, 24-27 May, 2004. It should be of interest to researchers and PhD students working or interested in recent results in the nuclear structure investigation by laser spectroscopy and the new generation of experimental laser spectroscopy methods.
The study of dark matter, in both astrophysics and particle physics, has emerged as one of the most active and exciting topics of research in recent years. This book reviews the history behind the discovery of missing mass (or unseen mass) in the Universe, and ties this into the proposed extensions to the Standard Model of Particle Physics (such as Supersymmetry), which were being proposed within the same time frame. This book is written as an introduction to these problems at the forefront of astrophysics and particle physics, with the goal of conveying the physics of dark matter to beginning undergraduate majors in scientific fields. The book goes onto describe existing and upcoming experiments and techniques, which will be used to detect dark matter either directly on indirectly.
The primary objective of the book on "Contemporary Topics in Medium Energy Physics" is to help the reader in exploring important frontier research, as of the year of 1992, in the area of medium energy physics. The book is the result of the multi-pronged efforts by the authors who were invited to speak at the Second German Chinese Symposium on "Medium Energy Physics" (September 7-10, 1992, Bochum, Germany). The premise of the meeting is to investigate primarily how quantum chromo dynamics (QCD), the candidate theory of strong interactions, manifests itself in high energy and nuclear physics. This book is divided into four parts: (i) field-theoretic treatments in QCD; (ii) effective chirally symmetric models and QCD; (iii) electroweak physics in general; and (iv) topological solutions. The focus is more on exposition of new ideas, rather than a comprehensive review of the current status, concerning these subjects, as of the year of 1992. As there are many distinctly different research areas in contemporary intermediate energy physics, we could only choose a few topics of current interest, especially those which are related, directly or indirectly, to the structural studies of the nucleon (proton or neutron). Fortunately, there are in recent years merging trends in these studies: There is a call for an alternative, and more efficient, method to handle problems related to strong interactions (as described by QCD). This is the focus of the papers included in Part I."
Shortlisted for the 2020 AAAS/Subaru SB&F Prize for Excellence in Science Books Creating an element is no easy feat. It's the equivalent of firing six trillion bullets a second at a needle in a haystack, hoping the bullet and needle somehow fuse together, then catching it in less than a thousandth of a second - after which it's gone forever. Welcome to the world of the superheavy elements: a realm where scientists use giant machines and spend years trying to make a single atom of mysterious artefacts that have never existed on Earth. From the first elements past uranium and their role in the atomic bomb to the latest discoveries stretching our chemical world, Superheavy will reveal the hidden stories lurking at the edges of the periodic table. Why did the US Air Force fly planes into mushroom clouds? Who won the transfermium wars? How did an earthquake help give Japan its first element? And what happened when Superman almost spilled nuclear secrets? In a globe-trotting adventure that stretches from the United States to Russia, Sweden to Australia, Superheavy is your guide to the amazing science filling in the missing pieces of the periodic table. By the end you'll not only marvel at how nuclear science has changed our lives - you'll wonder where it's going to take us in the future.
For the first time in human history, developments in many branches of science provide us with an opportunity of formula ting a comprehensive picture of the universe from its beginning to the present time. It is an awesome reflection that the carbon in our bodies is the very carbon which was generated during the birth of a star. There is a perceptible continuum through the billions of years which can be revealed by the study of chemistry. Studies in nucleosynthesis have related the origin of the elements to the life history of the stars. The chemical elements we find on earth, HYdrogen, Carbon, Oxygen, and Nitrogen, were created in astronomical processes that took place in the past, and these elements are not spread throughout space in the form of stars and galaxies. Radioastronomers have discovered a vast array of organic molecules in the interstellar medium which have a bearing on prebiological chemical processes. Many of the molecules found so far contain the four elements, C, N, 0, H. Except for the chem ically unreactive He, these four elements are the most abundant in the galaxy. The origin of polyatomic interstellar molecules is an unresolved problem. While we can explain the formation of some diatomic molecules as due to two atom collisions, it is much more difficult to form polyatomic molecules by collisions between diatomic molecules and atoms. There may be other produc tion mechanisms at work such as reactions taking place on the surface of interstellar dust grains."
This volume presents articles on the developing field of molecular interactions, molecular recognition, crystal engineering, and structural determination of complex molecular systems. The approaches described are interdisciplinary in nature, reflecting the concept of the ISMRI series of symposia.
Dimensional scaling offers a new approach to quantum dynamical correlations. This is the first book dealing with dimensional scaling methods in the quantum theory of atoms and molecules. Appropriately, it is a multiauthor production, derived chiefly from papers presented at a workshop held in June 1991 at the A~rsted Institute in Copenhagen. Although focused on dimensional scaling, the volume includes contributions on other unorthodox methods for treating nonseparable dynamical problems and electronic correlation. In shaping the book, the editors serve three needs: an introductory tutorial for this still fledgling field; a guide to the literature; and an inventory of current research results and prospects. Part I treats basic aspects of dimensional scaling. Addressed to readers entirely unfamiliar with the subject, it provides both a qualitative overview, and a tour of elementary quantum mechanics. Part II surveys the research frontier. The eight chapters exemplify current techniques and outline results. Part III presents other methods, including nonseparable dynamics, and electron correlation in pseudomolecular excited states of atoms. Although procrustean conformity was not imposed, unifying and complementary themes are emphasized throughout the book.
During the last two decades the explorations of di?erent processes accom- nyingion-atom collisions athigh-impactenergieshavebeenasubjectofmuch interest. This interest was generated not only by the advent of accelerators of relativistic heavy ions which enabled one to investigate these collisions in an experiment and possible applications of obtained results in other ?elds of physics, but also by the variety of physical mechanisms underlying the atomic collisional phenomena at high impact energies. Often highly charged projectiles produced at accelerators of heavy ions are not fully stripped ions but carry one or more very tightly bound el- trons. In collisions with atomic targets, these electrons can be excited or lost and this may occur simultaneously with electronic transitions in the target. The present book concentrates on, and may serve as an introduction to, th- retical methods which are used to describe the projectile-electron transitions occurringinhigh-energycollisionsbetweenionsandneutralatoms.Special- tention is given to relativistic impact energies and highly charged projectiles. Experimental results are used merely as illustrations and tests for theory. This book will be useful to graduate students and professional scientists who are interested in studying atomic collisions occurring at high-impact - ergies. It assumes that the reader possesses the basic knowledge in classical electrodynamics and nonrelativistic and relativistic quantum mechanics.
The Proceedings of the tenth Advanced Study Institute (ASI) on Tech niques and Concepts of High Energy Physics are dedicated to Jane and Bob Wilson. Jane joined Bob at St. Croix for the first session of this Institute, after Bob had stepped down as director of Fermilab, and was scheming to build a modest charm factory in the parking lot of Columbia University's Nevis Laboratory. Through the years, Bob has been a great friend of the School, and much of its success and flavor can be attributed to his guidance and support. The 1998 meeting was held once again at the Hotel on the Cay, and, as before, the work and the fun went on very enjoyably. We had a to tal of 76 participants from 23 countries, with the main financial support for the meeting provided by the Scientific Affairs Division of the North Atlantic Treaty Organization (NATO). The ASI was co-sponsored by the U. S. Department of Energy, by the Fermi National Accelerator Laboratory (Fermilab), by the U.S. National Science Foundation, and by the University of Rochester. As in the case of the previous ASIs, the scientific program was designed for advanced graduate students and recent PhD recipients in experimental particle physics. The present volume of lectures should complement and update the material published (by Plenum) for the first nine ASIs and prove to be of value to a wider audience of physicists."
The Role of Parton Distributions in 200 TeV pp Collisions (W.J. Stirling). Multiparticle Production in Hadronic Interactions at Superhigh Energies (A.B. Kaidalov). Jet Topology and New Jet Counting Algorithms (S. Catani). Chromodynamics of Jets Today and the Day after Tomorrow (V.A. Khoze). High Energy Factorization and Heavy Flavor Production (M. Ciafaloni). Heavy Quark Production in Nucleon Collisions (Yu. Shabelski). Results from the L3 Experiment at LEP (P. Lecomte). Structure Functions at Small x and the Regge Limit in QCD (J. Bartels). Exploring Higgs Bosons/Electroweak Symmetry Breaking Physics at 200 TeV (J.F. Gunion). Baryon Number Violation and Instantons in the Standard Model (V.V. Khoze). Pattern Recognition in High Energy Physics with Neural Networks (C. Peterson). Final States in Small x Processes at Very High Energies (B.R. Webber). Structure Function for Large and Small x (G. Marchesini). 6 additional articles. Index.
The present volume is a continuation ofthe EL.B.A. Forum Series which was initiated in the spring of 1992 in Marciana Marina (Italy), with the first volume entitled From Neural Networks and Biomolecu/ar Engineering to Bioelectronics published by Plenum Press in 1995. Bioelectronics-miginally introduced in April, 1987, at a symposium hosted by CIREF, a research consortium among leading high tech industries in Novara (Italy)---was later defined in two successive consensus reports at the first (Bruxelles, 1991) and second (Frankfurt, 1994) European Union Workshops on this widely interdisciplinary field, as "the use ofbiological materials and biological architectures for information processing and sens- ing systems and devices down to molecular Ievel." lt is worth noting that these workshops gave birth to the first European research program on "lnterfacing Biology with Electronics" during 1996-1999, following the !arge Programma Nazionale Ricerca on "Technologies for Bioelectronics" launched by the ltalian Ministry ofUniversities and Research in 1990. In autumn, 1996, with the second volume, entitledMolecular Manufacturing, the em- phasis was placed on the ernerging parallel area of nanotechnology, independently initiated in Palo Alto, Zurich, Genova, Mainz, and Tokyo by various groups (i.e., IBM, Xerox, Polo Nazionale Bioelettronica, Max Planck Institutes), universities (i.e., Stanford, Genova, Rice, Tokyo), and organizations (i.e., Foresight, Erato, Fondazione EL.B.A., Frontiers Research, MITI) of different sizes, scopes, and latitudes.
The EPSRC (Engineering and Physical Science Research Committee of the U. K. ) suggested two Workshops (York University, 22-23 September, 1993 and 15-16 April, 1994) for possible development of polarized electron/photon physics as targeted areas of research. The remit of these meetings included identifying research groups and their activities in polarized electron/polarized photon physics, listing relevant existing facilities (particularly electron spin sources and polarimeters), possible joint projects between research groups in the U. K. , recognizing future needs of projects for research of the highest scientific merit and referring to international comparisons of these research activities. Although very diverse but interconnected, the areas of research presented at the Workshops embrace atomic, molecular, surface, and solid state physics. In more detail these areas covered: electron spin correlations and photon polarization correlations in atomic and molecular collisions and photoionization, electron spin effects in scanning tunneling microscopy, surface and interface magnetism from X-ray scattering and polarized Auger electrons (including analysis of domain structures in solids and surfaces), polarized electrons from multiphoton ionization, quasi-atomic effects in solid state physics, dichroism in molecular and surface processes, Faraday rotation and high-field magneto-optics and polarization effects in simultaneous higher order electron-photon excitations. It is obvious from the spectrum of research fields presented at the Workshops that physicists of primarily two communities, namely those studying electron and photon spin interactions with gaseous atomic and molecular targets and those using condensed matter targets for their studies, interacted very closely with each other.
In response to the explosion of theories and experiments since the appearance of the first edition, the author has revised and expanded his basic text. New sections include up-to-date discussions of multiphoton ionization, and electron-atom and atom-atom scattering in laser fields, reaffirming the work's position as the standard introduction to the field.
It was just over ten years ago, at Aspeniisgarden near Gothenburg, Sweden, that Pro- fessor Alexandr Sergeevich Davydov presented his soliton theory for the storage and transport of biological energy in protein to scientists from Europe, North America and Japan. Since then, his ideas have been vigorously studied and investigated throughout the world. Many feel that Davydov's theory is an important contribution to biomolecu- lar dynamics, but others caution that neglected dispersive effects may destroy the energy localization that arises ill his theory. It was to discuss these differences of opinion that we organized a NATO Advanced Research Workshop on "Self-trapping of Vibrational Energy in Protein" from July 30 to August 5, 1989 at Hanstholm, Denmark. In addition to substantial financial support from the Special Programme on "Chaos; Order and Patterns" of the NATO Scientific Affairs Division, we received it generous grant from the Danish Natural Science Research Council. We also acknowledge invalu- able assistance provided by the interdepartmental center of nonlinear studies ("MIDIT" is the Danish acronym) as well as the Laboratory of Applied Mathematical Physics, both at the Technical University of Denmark. It is a particular pleasure to thank Lise Gudmandsen and Dorthe Th[cent]gersen for many forms of assistance before, during, and after the workshop.
Intended as a reference handbook of quantities used in dosimetry of ionizing radiations. Fields of application are radiological protection, environmental radiation, health physics, nuclear medicine and radiotherapy, radiobiology, radiopharmacy and radiation chemistry. The book is in three parts. The first part deals with electrons, X-rays and gamma-rays. The second part contains data for heavy charged particles ranging from protons to uranium ions, and the final part is concerned with neutrons. Quantities tabulated include quality paramenters recommended by the International Commissions of Radiological Protection and of radiation quantities units and measurements. |
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