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Vacuum Structure and QCD Sum Rules

1992-12-23 Science
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Release : 1992-12-23
Genre : Science
Kind : eBook
Book Rating : 16X/5 ( reviews)

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Book Synopsis Vacuum Structure and QCD Sum Rules by : M.A. Shifman

Download or read book Vacuum Structure and QCD Sum Rules written by M.A. Shifman. This book was released on 1992-12-23. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Vacuum Structure in Intense Fields

2012-12-06 Science
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Release : 2012-12-06
Genre : Science
Kind : eBook
Book Rating : 410/5 ( reviews)

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Book Synopsis Vacuum Structure in Intense Fields by : H.M. Fried

Download or read book Vacuum Structure in Intense Fields written by H.M. Fried. This book was released on 2012-12-06. Available in PDF, EPUB and Kindle. Book excerpt: 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).

Qcd Vacuum Structure - Proceedings Of The Workshop On Qcd Vacuum Structure And Its Applications

1993-03-18
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Release : 1993-03-18
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Kind : eBook
Book Rating : 476/5 ( reviews)

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Book Synopsis Qcd Vacuum Structure - Proceedings Of The Workshop On Qcd Vacuum Structure And Its Applications by : Herbert Martin Fried

Download or read book Qcd Vacuum Structure - Proceedings Of The Workshop On Qcd Vacuum Structure And Its Applications written by Herbert Martin Fried. This book was released on 1993-03-18. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the lectures presented at the Workshop on QCD Vacuum Structure and Its Applications, held in Paris, France, in June 1992. The structure of the vacuum state of quantum chromodynamics is one of the major unsolved problems in strong interaction physics. Although considerable progress has been made in the last decade in understanding various aspects of QCD vacuum structure, a unified picture is still elusive. This volume covers recent advances in the major fields of relevance to the problem of the QCD vacuum, such as quark confinement, chiral symmetry breaking, nonperturbative approaches, and QCD vacuum phenomenology. It provides the first comprehensive presentation of this subject, and will be valuable tool for theorists interested in nonperturbative QCD, hadronic structure, and relativistic nuclear physics.

On the Structure of Physical Vacuum and a New Interaction in Nature (theory, Experiment, Applications)

2000 Science
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Release : 2000
Genre : Science
Kind : eBook
Book Rating : 054/5 ( reviews)

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Book Synopsis On the Structure of Physical Vacuum and a New Interaction in Nature (theory, Experiment, Applications) by : I︠U︡. A. Baurov

Download or read book On the Structure of Physical Vacuum and a New Interaction in Nature (theory, Experiment, Applications) written by I︠U︡. A. Baurov. This book was released on 2000. Available in PDF, EPUB and Kindle. Book excerpt: In the book, an unconventional physical model of creation of the observed physical space from a finite set of special discrete objects, byuons is presented. The global space anisotropy associated with a cosmological vectorial potential appearing in the definition of byuons, as well as a new interaction due to this anisotropy, are predicted. Results of an experimental investigation of the proposed new interaction are given. A new method of power production based on the new interaction, as well as a new principle of motion of objects in nature with the use of physical space as a support medium, are advanced. The book is intended for the general reading public, physicists (theorists and experimenters), astrophysicists, engineers (specialists in space technology and power engineering), and physical students.

1965 Transactions of the Third International Vacuum Congress

2013-10-22 Technology & Engineering
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Release : 2013-10-22
Genre : Technology & Engineering
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Book Rating : 934/5 ( reviews)

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Book Synopsis 1965 Transactions of the Third International Vacuum Congress by : H. Adam

Download or read book 1965 Transactions of the Third International Vacuum Congress written by H. Adam. This book was released on 2013-10-22. Available in PDF, EPUB and Kindle. Book excerpt: 1965 Transactions of the Third International Vacuum Congress, Volume 2, Part I documents the proceedings on the Third International Vacuum Congress held in Stuttgart, Germany on June 28-July 2, 1965. This compilation is divided into four sessions. Session 1 focuses on evaporation and thin films, while Session 2 deals with the flow of gases. The components and materials of orthodox vacuum pumps are covered in Session 3. The last session concentrates on pressure measurement and leak detection. The topics discussed include developments in the vacuum deposition of electronic film circuits; bulk sublimation of titanium; transmission probability determination with directed mass motion and with mean free path considerations; measuring the density and direction of gas molecular flow using an ionization detector; and porous metal isolation traps and cryosorbents in vacuum technique. The factors influencing the performance and design of water-cooled condensers; electrode dimensions of the Bayard-Alpert ionization gauge and its sensitivity; and analysis of the changes in Pirani gauge characteristics are also deliberated in this text. This volume is beneficial to students and researchers conducting work on vacuum, including other related subjects such as etymology, electromagnetism, and quantum mechanics.

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