The Three-photon Annihilation of Positrons and Electrons
Author : Robert T. Siegel
Publisher :
Page : 35 pages
File Size : 15,66 MB
Release : 1952
Category : Electrons
ISBN :
Author : Robert T. Siegel
Publisher :
Page : 35 pages
File Size : 15,66 MB
Release : 1952
Category : Electrons
ISBN :
Author : P. Hautojärvi
Publisher : Springer Science & Business Media
Page : 266 pages
File Size : 15,14 MB
Release : 2012-12-06
Category : Science
ISBN : 364281316X
In condensed matter initially fast positrons annihilate after having reached equi librium with the surroundings. The interaction of positrons with matter is governed by the laws of ordinary quantum mechanics. Field theory and antiparticle properties enter only in the annihilation process leading to the emergence of energetic photons. The monitoring of annihilation radiation by nuclear spectroscopic methods provides valuable information on the electron-positron system which can directly be related to the electronic structure of the medium. Since the positron is a positive electron its behavior in matter is especially interesting to solid-state and atomic physi cists. The small mass quarantees that the positron is really a quantum mechanical particle and completely different from any other particles and atoms. Positron physics started about 25 years ago but discoveries of new features in its interac tion with matter have maintained continuous interest and increasing activity in the field. Nowadays it is becoming part of the "stock-in-trade" of experimental physics.
Author : James Arthur Whalen
Publisher :
Page : 170 pages
File Size : 40,50 MB
Release : 1957
Category : Electrons
ISBN :
Author : J. B. Sykes
Publisher : Newnes
Page : 761 pages
File Size : 41,81 MB
Release : 2012-12-02
Category : Science
ISBN : 0080984711
Evgenii Mikhailovich Lifshitz is perhaps best known for his long association with his mentor Lev D Landau, with whom he co-wrote the classic Course of Theoretical Physics, but he was a noted and respected Soviet physicist in his own right. Born in the Ukraine to a scientific family, his long and distinguished career will be remembered for three things - his collaboration with Landau on the internationally acclaimed Course of Theoretical Physics, his work as editor of the Journal of Experimental and Theoretical Physics, and his scientific papers. As well as his work with Landau, E\M\Lifshitz collaborated with many noted Soviet scientists such as I\M\Khalatnikov, I\E\Dyzaloshinskii, V\V\Sudakov, V\A\Belinskii and the editor of this book, L\P\Pitaevskii. Many of the papers presented in this book include their contribution. Collected together they give a comprehensive and penetrating insight into the man and his work, clearly showing Lifshitz's contribution to physics and the influences on his work.
Author : James Green
Publisher : Elsevier
Page : 118 pages
File Size : 43,20 MB
Release : 2013-10-22
Category : Science
ISBN : 1483274446
Positronium Chemistry focuses on the methodologies, reactions, processes, and transformations involved in positronium chemistry. The publication first offers information on positrons and positronium and experimental methods, including mesonic atoms, angular correlation measurements, annihilation spectra, and statistical errors in delayed coincidence measurements. The text then ponders on positrons in gases and solids. The manuscript takes a look at the theoretical chemistry of positronium and positronium chemistry in gases. Topics include quenching, annihilation spectrum, delayed coincidence method, rate of two-photon and three-photon annihilations, and angular correlation of two-photon distribution. The book also considers positronium chemistry in the condensed state, as well as liquid gases, organic solids, and aqueous solutions. The publication is a primary reference for chemists and readers interested in positronium chemistry.
Author : John Bell Hughes
Publisher :
Page : 108 pages
File Size : 48,6 MB
Release : 1956
Category : Positrons
ISBN :
Author : F. A. Berends
Publisher :
Page : 24 pages
File Size : 39,43 MB
Release : 1980
Category :
ISBN :
Author : James Franklin Scoggin
Publisher :
Page : 122 pages
File Size : 45,30 MB
Release : 1957
Category : Photons
ISBN :
Author : B. Foster
Publisher : CRC Press
Page : 256 pages
File Size : 35,13 MB
Release : 1990
Category : Electron-positron interactions
ISBN :
A detailed introduction to the main topics in e +e - annihilation, with particular emphasis on experimental work. Invaluable to both graduate students studying high-energy physics & scientists entering the field.
Author : A.T. Steward
Publisher : Elsevier
Page : 455 pages
File Size : 40,25 MB
Release : 2012-12-02
Category : Science
ISBN : 0323149820
Positron Annihilation focuses on the process of positron annihilation in different environments. Partitioned into two parts with 42 chapters, the book contains the contributions of authors who have done research on the annihilation of positrons, which brought about valuable information on the properties of matter. The first part of the book deals with lengthy review articles, including a survey of the physics of positron annihilation; positron annihilation in metals and the theory involved in the process; and positron annihilation in alkali halides and ionic crystals. Positronium formation and interaction in gases, molecular substances, and ionic crystals are also given attention. Gaseous positronics and positron annihilation in condensed gases and liquids are also discussed. The second part of the book focuses on developments on positron annihilation and the direction of research on this field. The studies concentrate on positron annihilation in various crystals, metals, mercury, liquefied gases, helium, and metal oxides. Numerical representations and analyses are presented to support the processes involved. The book can best serve the interest of those who want to explore further the annihilation of positrons.