Download or read book Reaction and Scattering Cross Sections written by Eugene Paul Wigner and published by . This book was released on 1946 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atom Molecule Collision Theory written by Richard Barry Bernstein and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 785 pages. Available in PDF, EPUB and Kindle. Book excerpt: The broad field of molecular collisions is one of considerable current interest, one in which there is a great deal of research activity, both experi mental and theoretical. This is probably because elastic, inelastic, and reactive intermolecular collisions are of central importance in many of the fundamental processes of chemistry and physics. One small area of this field, namely atom-molecule collisions, is now beginning to be "understood" from first principles. Although the more general subject of the collisions of polyatomic molecules is of great im portance and intrinsic interest, it is still too complex from the viewpoint of theoretical understanding. However, for atoms and simple molecules the essential theory is well developed, and computational methods are sufficiently advanced that calculations can now be favorably compared with experimental results. This "coming together" of the subject (and, incidentally, of physicists and chemists !), though still in an early stage, signals that the time is ripe for an appraisal and review of the theoretical basis of atom-molecule collisions. It is especially important for the experimentalist in the field to have a working knowledge of the theory and computational methods required to describe the experimentally observable behavior of the system. By now many of the alternative theoretical approaches and computational procedures have been tested and intercompared. More-or-Iess optimal methods for dealing with each aspect are emerging. In many cases working equations, even schematic algorithms, have been developed, with assumptions and caveats delineated.
Download or read book Cross section for Elastic Scattering and Reactions Due to Protons on N15 written by Stanley Bashkin and published by . This book was released on 1958 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cross Sections and Rate Constants for Ion molecule Reactions written by George Gioumousis and published by . This book was released on 1966 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of ion-neutral reactions is well recognized, especially in the study of the chemistry of upper atmosphere. The first section of the report is concerned with refining the calculation of the cross section from the long-range interactions, assuming an arbitrary classical potential. The cross section so found is not regarded as an approximation to the reaction cross section, but rather the cross section for any sort of significant interaction, that is, the sum of the cross sections for elastic scattering, inelastic scattering, and the various reactions that can occur. The next section is a rigorous analysis of the experiments, based on the kinetic theory of gases, from the point of view of expressing whatever macroscopic parameters the experiment yields in terms of the reaction cross section, which is assumed known as a function of energy. An approximate method is developed which inverts the relationship and yields the reaction cross section as a function of energy if the experimental data are adequate. The final section applied the above-mentioned method to various reactions. This is believed to be the only way to find the cross section as such for ion-neutral reactions in the energy range somewhat above thermal. Some new and unexpected results were found by this method, especially for the H2, Ne reaction. (Author).
Download or read book Nuclear Reactions for Astrophysics written by Ian J. Thompson and published by Cambridge University Press. This book was released on 2009-07-02 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes how the processes in stars which produce the chemical elements for planets and life may be reproduced in laboratories.
Download or read book Theory of Effective Cross Sections written by George I. Bell and published by . This book was released on 1959 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reaction Cross Sections from Elastic Scattering Data written by Felix Sannes and published by . This book was released on 1966 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A method for obtaining proton-nucleus reaction cross sections from the elastic scattering data is described. The procedure involves the determination of the forward nuclear scattering amplitude from the elastic data and the calculable Coulomb scattering amplitude. The interference of the nuclear amplitude with the known Coulomb amplitude at small scattering angles makes it possible to determine both the magnitude and phase of the nuclear amplitude. [...]" --
Download or read book Elastic Scattering and Total Reaction Cross sections for the Interaction of 12 8 MeV Deuterons with 12C 58Ni 60Ni and 209Bi Nuclei written by A. Budzanowski and published by . This book was released on 1963 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relative Cross Sections of Nuclear Reactions Induced by High Energy Neutrons in Light Elements written by William J. Knox and published by . This book was released on 1949 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scattering Theory of Waves and Particles written by R.G. Newton and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt: Much progress has been made in scattering theory since the publication of the first edition of this book fifteen years ago, and it is time to update it. Needless to say, it was impossible to incorporate all areas of new develop ment. Since among the newer books on scattering theory there are three excellent volumes that treat the subject from a much more abstract mathe matical point of view (Lax and Phillips on electromagnetic scattering, Amrein, Jauch and Sinha, and Reed and Simon on quantum scattering), I have refrained from adding material concerning the abundant new mathe matical results on time-dependent formulations of scattering theory. The only exception is Dollard's beautiful "scattering into cones" method that connects the physically intuitive and mathematically clean wave-packet description to experimentally accessible scattering rates in a much more satisfactory manner than the older procedure. Areas that have been substantially augmented are the analysis of the three-dimensional Schrodinger equation for non central potentials (in Chapter 10), the general approach to multiparticle reaction theory (in Chapter 16), the specific treatment of three-particle scattering (in Chapter 17), and inverse scattering (in Chapter 20). The additions to Chapter 16 include an introduction to the two-Hilbert space approach, as well as a derivation of general scattering-rate formulas. Chapter 17 now contains a survey of various approaches to the solution of three-particle problems, as well as a discussion of the Efimov effect.
Download or read book Recent Progress in Few Body Physics written by N. A. Orr and published by Springer Nature. This book was released on 2020-01-06 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt: Few-body physics covers a rich and wide variety of phenomena, ranging from the very lowest energy scales of atomic and molecular physics to high-energy particle physics. The papers contained in the present volume provide an apercu of recent progress in the field from both the theoretical and experimental perspectives and are based on work presented at the “22nd International Conference on Few-Body Problems in Physics”. This book is geared towards academics and graduate students involved in the study of systems which present few-body characteristics and those interested in the related mathematical and computational techniques.
Download or read book Neutron Cross Sections in Zirconium April 1961 written by Rudolph Sher and published by . This book was released on 1961 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deuteron Plus Helium Reaction and Scattering Cross Sections written by Robert Emil Rothe and published by . This book was released on 1964 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Status of Experimental Neutron Cross Sections for Energies Between 0 5 and 14 5 Mev written by Robert J. Howerton and published by . This book was released on 1958 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neutron Cross Sections and Reaction Products for H C N and O for the Energy Range from written by and published by . This book was released on 1967 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reaction Cross Sections from Elastic Scattering Data microform written by Sannes, Felix and published by National Library of Canada. This book was released on 1966 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A method for obtaining proton-nucleus reaction cross sections from the elastic scattering data is described. The procedure involves the determination of the forward nuclear scattering amplitude from the elastic data and the calculable Coulomb scattering amplitude. The interference of the nuclear amplitude with the known Coulomb amplitude at small scattering angles makes it possible to determine both the magnitude and phase of the nuclear amplitude. [...]" --
Download or read book Neutron Cross Sections written by Donald J. Hughes and published by Elsevier. This book was released on 2016-01-22 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neutron Cross Sections presents the principles of cross-section measurement and use, as well as sufficient theory so that the general behavior of cross sections is made understandable. This compilation is a direct result of experiences connected with the collection and evaluation of cross-section data during the past eight years at ""Sigma Centre"", Brookhaven National Laboratory. Here, experimental results received from laboratories throughout the world are carefully evaluated and compiled in the curves and tables of the large volume Neutron Cross Sections, The most recent version of the compilation, known as BNL 325, appeared 1 July 1955, and Supplement 1 to BNL 325 was published on 1 January 1957. The compilation itself consists almost completely of cross sections at specific energies, shown in the form of curves or tables, with only brief explanatory texts. The text opens with discussions of the general properties of cross sections and principles of nuclear structure that are important to the understanding of cross-section behavior. Separate chapters follow that describe specific techniques for measuring cross sections along with experimental results involving fast neutrons, resonance neutrons, resonances in fissionable materials, and thermal neutrons.
