Virtual Compton Scattering and Neutral Pion Electro-production from the Proton in the Nucleon Resonance Region PDF Download
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Author: Luminita Todor
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The experiment (E93-050) at Jefferson Lab measured the ep {yields} ep{gamma} and ep {yields} ep{pi}{sup 0} cross sections in the nucleon resonance region, from the threshold to W = 1.9 GeV at Q{sup 2} = 1 GeV{sup 2} for backward emission of the {gamma} or {pi}{sup 0}.
Author: Luminita Todor
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The experiment (E93-050) at Jefferson Lab measured the ep {yields} ep{gamma} and ep {yields} ep{pi}{sup 0} cross sections in the nucleon resonance region, from the threshold to W = 1.9 GeV at Q{sup 2} = 1 GeV{sup 2} for backward emission of the {gamma} or {pi}{sup 0}.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The experiment (E93-050) at Jefferson Lab measured the ep [yields] ep[gamma] and ep [yields] ep[pi][sup 0] cross sections in the nucleon resonance region, from the threshold to W = 1.9 GeV at Q[sup 2] = 1 GeV[sup 2] for backward emission of the [gamma] or [pi][sup 0].
Author: Luminita Anca Todor
Publisher:
ISBN:
Category : Electrons, Compton
Languages : en
Pages : 378
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Book Description
Author: Frank Wissmann
Publisher: Springer Science & Business Media
ISBN: 9783540407423
Category : Science
Languages : en
Pages : 170
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Book Description
A comprehensive summary of experiments on Compton scattering from the proton and neutron performed at the electron accelerator MAMI. The experiments cover a photon energy range from 30 MeV to 500 MeV. The reader is introduced to the theoretical concepts of Compton scattering, followed by a description of the experiments on the proton, their analysis and results.
Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 912
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 168
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Book Description
In hadronic physics, the nucleon structure and the quarks confinement are still topical issues. The neutral pion electroproduction and virtual Compton scattering (VCS) reactions allow us to access new observables that describe this structure. This work is focused on the VCS experiment performed at Jefferson Lab in 1998.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 123
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Book Description
Non-spherical components of the nucleon wave function are measured through p(e, e'p)[pi]0 experiment at the [Delta]+(1232) resonance for Q2 = 0.04, 0.09, and 0.13 (GeV=c)2 utilizing the Jefferson National Accelerator Facility (JLab) pulsed beam and Hall A spectrometers. The new data extend the measurements of the Coulomb quadrupole amplitude to the lowest momentum transfer ever reached. The results disagree with predictions of constituent quark models and are in reasonable agreement with dynamical calculations that include pion cloud effects, chiral effective field theory and lattice calculations. The reported measurements indicate that improvement is required to the theoretical calculations and provide valuable input that will allow their refinements. The Coulomb to magnetic multipole ratio (CMR) and generalized polarizability (GP) of the nucleon are also measured through virtual Compton scattering (VCS) for Q2 = 0.2(GeV=c)2 utilizing the Mainz Microtron (MAMI) continuous beam and A1 spectrometers. This data represents the first low Q2 GP measurement at the [Delta]+(1232) resonance. The GP measurement explores a region where previous data and theoretical calculations disagree. The CMR measurement will be the first VCS extraction to compare with world data generated through pion electroproduction. The Dispersion Relation (DR) model used for the VCS extraction provides a new theoretical framework for the data signal and backgrounds that is largely independent from the pion electroproduction models. The independence of the DR from the traditional models provides a strong crosscheck on the ability of the models to isolate the data signal.
Author: Bernhard Mecking
Publisher: World Scientific
ISBN: 9814485675
Category : Science
Languages : en
Pages : 705
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Book Description
This book deals with the latest developments in the area of three-quark systems. Emphasis is given to the discussion of new experimental results in the areas of form factors, unpolarized and polarized structure functions, and baryon structure and spectroscopy. Of particular interest are the new theoretical developments in the area of generalized parton distributions and lattice quantum chromodynamics.
Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 1162
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Book Description
Author: Carl Carlson
Publisher: World Scientific
ISBN: 981238409X
Category : Science
Languages : en
Pages : 705
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Book Description
This book deals with the latest developments in the area of three-quark systems. Emphasis is given to the discussion of new experimental results in the areas of form factors, unpolarized and polarized structure functions, and baryon structure and spectroscopy. Of particular interest are the new theoretical developments in the area of generalized parton distributions and lattice quantum chromodynamics.
