Quasielastic Electron-deuteron Scattering and Neutron Electromagnetic Form Factors in Q2
Author : Allison Lung
Publisher :
Page : 466 pages
File Size : 18,19 MB
Release : 1992
Category : Deuterons
ISBN :
Author : Allison Lung
Publisher :
Page : 466 pages
File Size : 18,19 MB
Release : 1992
Category : Deuterons
ISBN :
Author :
Publisher :
Page : pages
File Size : 16,89 MB
Release : 2004
Category :
ISBN :
The nucleon elastic electromagnetic form factors are fundamental quantities needed for an understanding of nucleon and nuclear electromagnetic structure. The evolution of the Sachs electric and magnetic form factors with Q2, the square of the four-momentum transfer, is related to the distribution of charge and magnetization within the nucleon. High precision measurements of the nucleon form factors are essential for stringent tests of our current theoretical understanding of confinement within the nucleon. Measurements of the neutron form factors, in particular, those of the neutron electric form factor, have been notoriously difficult due to the lack of a free neutron target and the vanishing integral charge of the neutron. Indeed, a precise measurement of the neutron electric form factor has eluded experimentalists for decades; however, with the advent of high duty-factor polarized electron beam facilities, experiments employing polarization degrees of freedom have finally yielded the first precise measurements of this fundamental quantity. Following a general overview of the experimental and theoretical status of the nucleon form factors, a detailed description of an experiment designed to extract the neutron electric form factor from measurements of the neutron's recoil polarization in quasielastic 2H(e, e')1H scattering is presented. The experiment described here employed the Thomas Jefferson National Accelerator Facility's longitudinally polarized electron beam, a magnetic spectrometer for detection of the scattered electron, and a neutron polarimeter designed specifically for this experiment. Measurements were conducted at three Q2 values of 0.45, 1.13, and 1.45 (GeV/c)2, and the final results extracted from an analysis of the data acquired in this experiment are reported and compared with recent theoretical predictions for the nucleon form factors.
Author : Hongguo Zhu
Publisher :
Page : 574 pages
File Size : 39,29 MB
Release : 2000
Category :
ISBN :
Author :
Publisher :
Page : 10 pages
File Size : 43,79 MB
Release : 1971
Category :
ISBN :
Author : C. W. Akerlof
Publisher :
Page : 6 pages
File Size : 24,47 MB
Release : 1964
Category :
ISBN :
The differential cross section for quasielastic scattering of electrons from neutrons initially bound in deuterium has been measured at 90 deg and 120 deg laboratory angle for values of the four-momentum transfer squared equal to 11, 15, 20, 25, and 35 deg. The yield of momentum analyzed scattered electrons was measured using CD2, CH2, and C targets. The Durand theory for the effects of deuteron binding is used to extract experimental values for the ratio of the electron-neutron and electron-proton differential cross sections. Over most of the range of the experiment the ratio is between 0.3 and 0.5. The neutron form factors obtained are consistent with previous measurements at lower momentum transfer. (Author).
Author : Siegfried Galster
Publisher :
Page : 10 pages
File Size : 20,71 MB
Release : 1971
Category :
ISBN :
Author : Bradley Robert Plaster
Publisher :
Page : 541 pages
File Size : 21,14 MB
Release : 2004
Category :
ISBN :
(Cont.) Following a general overview of the experimental and theoretical status of the nucleon form factors, a detailed description of an experiment designed to extract the neutron electric form factor from measurements of the neutron's recoil polarization in quasielastic 2H(e, e')1H scattering is presented. The experiment described here employed the Thomas Jefferson National Accelerator Facility's longitudinally polarized electron beam, a magnetic spectrometer for detection of the scattered electron, and a neutron polarimeter designed specifically for this experiment. Measurements were conducted at three Q2 values of 0.45, 1.13, and 1.45 (GeV/c)2, and the final results extracted from an analysis of the data acquired in this experiment are reported and compared with recent theoretical predictions for the nucleon form factors.
Author :
Publisher :
Page : 1082 pages
File Size : 37,48 MB
Release : 1975-04
Category : Nuclear energy
ISBN :
Author : Bernard Frois
Publisher : World Scientific
Page : 832 pages
File Size : 15,77 MB
Release : 1991
Category : Science
ISBN : 9789971509750
This book summarizes the considerable progress recently achieved in the understanding of nucleon and nuclear structure by using high energy electrons as a probe. A collection of papers discusses in detail the new frontiers of this field. Experimental and theoretical articles cover topics such as the structure of the nucleon, nucleon distributions, many-body correlations, non-nucleonic degrees of freedom and few-body systems. This book is an up-to-date introduction to the research planned with continuous beam electron accelerators.
Author : Stanley Earl Sobottka
Publisher :
Page : 244 pages
File Size : 37,19 MB
Release : 1960
Category : Neutrons
ISBN :