Fundamentals of Inelastic Electron Scattering
Fundamentals of Inelastic Electron Scattering

Author: P. Schattschneider

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 205

ISBN-13: 3709188660

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Electron energy loss spectroscopy (ELS) is a vast subject with a long and honorable history. The problem of stopping power for high energy particles interested the earliest pioneers of quantum mechanics such as Bohr and Bethe, who laid the theoretical foun dations of the subject. The experimental origins might perhaps be traced to the original Franck-Hertz experiment. The modern field includes topics as diverse as low energy reflection electron energy loss studies of surface vibrational modes, the spectroscopy of gases and the modern theory of plasmon excitation in crystals. For the study of ELS in electron microscopy, several historically distinct areas of physics are relevant, including the theory of the Debye Waller factor for virtual inelastic scattering, the use of complex optical potentials, lattice dynamics for crystalline specimens and the theory of atomic ionisation for isolated atoms. However the field of electron energy loss spectroscopy contains few useful texts which can be recommended for students. With the recent appearance of Raether's and Egerton's hooks (see text for references), we have for the first time both a comprehensive review text-due to Raether-and a lucid introductory text which emphasizes experimental aspects-due to Egerton. Raether's text tends to emphasize the recent work on surface plasmons, while the strength of Egerton's book is its treatment of inner shell excitations for microanalysis, based on the use of atomic wavefunctions for crystal electrons.

Geometric Scaling Analysis of Deep Inelastic Scattering Data Including Heavy Quarks*Supported by the National Natural Science Foundation of China Under Grant Nos 11305040, 11375071 and 11447203, the Education Department of Guizhou Province Innovation Talent Fund Under Grant No [2015]5508, the Education Department of Guizhou Province Innovation Team Fund Under Grant No [2014]35, the Guizhou Province Science Technology Foundation Under Grant No [2015]2114, and the Guizhou Province Innovation Talent Team Fund Under Grant No [2015]4015
Geometric Scaling Analysis of Deep Inelastic Scattering Data Including Heavy Quarks*Supported by the National Natural Science Foundation of China Under Grant Nos 11305040, 11375071 and 11447203, the Education Department of Guizhou Province Innovation Talent Fund Under Grant No [2015]5508, the Education Department of Guizhou Province Innovation Team Fund Under Grant No [2014]35, the Guizhou Province Science Technology Foundation Under Grant No [2015]2114, and the Guizhou Province Innovation Talent Team Fund Under Grant No [2015]4015

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Published: 2016

Total Pages:

ISBN-13:

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Abstract : An analytic massive total cross section of photon-proton scattering is derived, which has geometric scaling. A geometric scaling is used to perform a global analysis of the deep inelastic scattering data on inclusive structure function F 2 measured in lepton–hadron scattering experiments at small values of Bjorken x . It is shown that the descriptions of the inclusive structure function F 2 and longitudinal structure function F L are improved with the massive analytic structure function, which may imply the gluon saturation effect dominating the parton evolution process at HERA. The inclusion of the heavy quarks prevent the divergence of the lepton–hadron cross section, which plays a significant role in the description of the photoproduction region.

Elastic and Inelastic Scattering in Electron Diffraction and Imaging
Elastic and Inelastic Scattering in Electron Diffraction and Imaging

Author: Zhong-lin Wang

Publisher: Springer Science & Business Media

Published: 2013-06-29

Total Pages: 461

ISBN-13: 1489915796

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Elastic and inelastic scattering in transmission electron microscopy (TEM) are important research subjects. For a long time, I have wished to systematically summarize various dynamic theories associated with quantitative electron micros copy and their applications in simulations of electron diffraction patterns and images. This wish now becomes reality. The aim of this book is to explore the physics in electron diffraction and imaging and related applications for materials characterizations. Particular emphasis is placed on diffraction and imaging of inelastically scattered electrons, which, I believe, have not been discussed exten sively in existing books. This book assumes that readers have some preknowledge of electron microscopy, electron diffraction, and quantum mechanics. I anticipate that this book will be a guide to approaching phenomena observed in electron microscopy from the prospects of diffraction physics. The SI units are employed throughout the book except for angstrom (A), which is used occasionally for convenience. To reduce the number of symbols used, the Fourier transform of a real-space function P'(r), for example, is denoted by the same symbol P'(u) in reciprocal space except that r is replaced by u. Upper and lower limits of an integral in the book are (-co, co) unless otherwise specified. The (-co, co) integral limits are usually omitted in a mathematical expression for simplification. I very much appreciate opportunity of working with Drs. J. M. Cowley and J. C. H. Spence (Arizona State University), J.

Deep Inelastic Scattering And Related Phenomena
Deep Inelastic Scattering And Related Phenomena

Author: Giulio D'agostini

Publisher: World Scientific

Published: 1997-03-15

Total Pages: 814

ISBN-13: 9814546623

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This workshop is the fourth of a series initiated in Durham (March 93), followed by Eilat (February 94) and Paris (April 95). The large interest and the great inflow of experimental data, coming mainly from HERA, are some of the reasons behind the decision to have this annual meeting, presently the most important one for this area of research. During the workshop, experimental results and theoretical aspects have been reported on subjects, which have been organised by working groups on: 1) hadron structure functions; 2) photoproduction and photon structure; 3) diffractive interactions; 4) hadronic final states; 5) spin effects in lepton nucleon scattering; 6) special session on theoretical advances. While the contributions to the working groups offer hot material for specialists, the reports by the conveners, as well as other contributions to the plenary sessions, offer to nonspecialists a complete overview of this research field.

Charm Production in Deep Inelastic Scattering
Charm Production in Deep Inelastic Scattering

Author: Sebastian Klein

Publisher: Springer Science & Business Media

Published: 2011-10-09

Total Pages: 246

ISBN-13: 3642232868

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The production of heavy quarks in high-energy experiments offers a rich field to study, both experimentally and theoretically. Due to the additional quark mass, the description of these processes in the framework of perturbative QCD is much more demanding than it is for those involving only massless partons. In the last two decades, a large amount of precision data has been collected by the deep inelastic HERA experiment. In order to make full use of these data, a more precise theoretical description of charm quark production in deep inelastic scattering is needed. This work deals with the first calculation of fixed moments of the NNLO heavy flavor corrections to the proton structure function F2 in the limit of a small charm-quark mass. The correct treatment of these terms will allow not only a more precise analysis of the HERA data, but starting from there also a more precise determination of the parton distribution functions and the strong coupling constant, which is an essential input for LHC physics. The complexity of this calculation requires the application and development of technical and mathematical methods, which are also explained here in detail.