Determination of the Charge Radii of Several Light Nuclei from Precision, High-energy Electron Elastic Scattering PDF Download
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Author: Al Amin Kabir
Publisher:
ISBN:
Category : Electrons
Languages : en
Pages : 144
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Book Description
Analysis of high-energy electron scattering has been used to determine the charge radii of nuclei for several decades. Recent analysis of the Lamb shift in muonic hydrogen found an r.m.s. radius significantly different than the electron scattering result. To understand this puzzle we have analyzed the "LEDEX" data for the (e,e' p) reaction. This experiment includes measurements on several light nuclei, hydrogen, deuterium, lithium, boron, and carbon. To test our ability to measure absolute cross sections, as well as our ability to extract the charge radius, we tested our technique against the extremely well-measured carbon case and found excellent agreement using the Fourier-Bessel parametrization. We then extended the procedure to boron and lithium, which show nice agreement with the latest theoretical calculations. For hydrogen, we see clearly the limits of this technique and therefore, the charge radius is determined from the traditional extrapolation to q2=0. We will show that there is a model dependence in extracting the charge radius of hydrogen and its unambiguous determination is very difficult with available electron-scattering measurements.
Author: Al Amin Kabir
Publisher:
ISBN:
Category : Electrons
Languages : en
Pages : 144
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Book Description
Analysis of high-energy electron scattering has been used to determine the charge radii of nuclei for several decades. Recent analysis of the Lamb shift in muonic hydrogen found an r.m.s. radius significantly different than the electron scattering result. To understand this puzzle we have analyzed the "LEDEX" data for the (e,e' p) reaction. This experiment includes measurements on several light nuclei, hydrogen, deuterium, lithium, boron, and carbon. To test our ability to measure absolute cross sections, as well as our ability to extract the charge radius, we tested our technique against the extremely well-measured carbon case and found excellent agreement using the Fourier-Bessel parametrization. We then extended the procedure to boron and lithium, which show nice agreement with the latest theoretical calculations. For hydrogen, we see clearly the limits of this technique and therefore, the charge radius is determined from the traditional extrapolation to q2=0. We will show that there is a model dependence in extracting the charge radius of hydrogen and its unambiguous determination is very difficult with available electron-scattering measurements.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 155
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Book Description
Analysis of high-energy electron scattering has been used to determine the charge radii of nuclei for several decades. Recent analysis of the Lamb shift in muonic hydrogen found an r.m.s. radius significantly different than the electron scattering result. To understand this puzzle we have analyzed the "LEDEX" data for the (e, e0p) reaction. This experiment includes measurements on several light nuclei, hydrogen, deuterium, lithium, boron, and carbon. To test our ability to measure absolute cross sections, as well as our ability to extract the charge radius, we tested our technique against the extremely well-measured carbon case and found excellent agreement using the Fourier-Bessel parametrization. We then extended the procedure to boron and lithium, which show nice agreement with the latest theoretical calculations. For hydrogen, we see clearly the limits of this technique and therefore, the charge radius is determined from the traditional extrapolation to q2 = 0. We will show that there is a model dependence in extracting the charge radius of hydrogen and its unambiguous determination is very difficult with available electron-scattering measurements.
Author: Herbert Uberall
Publisher: Academic Press
ISBN: 0323148123
Category : Science
Languages : en
Pages : 496
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Book Description
Electron Scattering from Complex Nuclei, Part A covers the historical phases of experimental development in elastic and inelastic electron scattering. This five-chapter text presents the logical development of the underlying theory of electron scattering. After briefly discussing the history of electron scattering from nuclei, this book goes on describing the theory of elastic scattering from a point nucleus, both with Born approximation and the accurate solution of the Dirac equation, as well as the corresponding experiments. The following chapter considers the analysis of nuclear charge distributions experiments using Born cross section and phase-shift methods. A chapter is devoted to the complete elastic and inelastic Born theory. This chapter also deals with the derivation of a theorem on the general form of the electron-nucleus scattering cross section, with an emphasis on the influence of the neglected transverse interaction on the cross section. The last chapter presents the status of elastic scattering along with some topics in muonic atoms that also determine nuclear charge densities. This book will be of great benefit to physicists, researchers, and graduate students who are interested in nuclear structure problems.
Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 612
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The nuclear charge distribution and nuclear charge distribution differences have been investigated by 350 MeV elastic electron scattering at the Institut fuer Kernphysik, Universitaet Mainz. Muonix x-ray measurements yield complementary information to electron scattering results. Both experimental data are analyzed in an almost model independent way. Muonic x-ray measurements have been performed for the region 4°Ca up to 1°°Mo. Muonic x-ray transition energies allow the determination of one radial parameter R/sub k/ - the Barrett radius - with high precision. This Barrett radius combined with the charge distribution from elastic electron scattering yields the following precise radial parameters r212, r414 and 4616. With the abolute values of these radial moments, it is possible to determine the two optical constants: the electron density at the nucleus and the specific mass shift.
Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 654
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Author:
Publisher:
ISBN:
Category : Nuclear physics
Languages : en
Pages : 708
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Author: Institute of Physics and the Physical Society
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 950
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Author:
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 812
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 994
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