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A Study Of The Spin Structure Of The Neutron In Deep Inelastic Scattering Of Polarized Electrons On Polarized Neutrons
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Book Synopsis A Study of the Spin Structure of the Neutron in Deep Inelastic Scattering of Polarized Electrons on Polarized Neutrons by : Michael Spyro Spengos
Download or read book A Study of the Spin Structure of the Neutron in Deep Inelastic Scattering of Polarized Electrons on Polarized Neutrons written by Michael Spyro Spengos and published by . This book was released on 1994 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of the Spin Structure on the Neutron in Deep Inelastic Scattering of Polarized Electrons on Polarized Neutrons by :
Download or read book A Study of the Spin Structure on the Neutron in Deep Inelastic Scattering of Polarized Electrons on Polarized Neutrons written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The internal spin structure of the neutron, was studied in deep inelastic scattering of longitudinally polarized electrons from a polarized [sup 3]He target in the End Station A of the Stanford Linear Accelerator Center (SLAC). The spin asymmetry of the neutron was measured at energies between 19 and 26 GeV in the range 0.03 [le] x [le] 0.06 at an average Q[sup 2] of 2 (GeV/c)[sup 2]. The results are in agreement with a new measurement of the asymmetry by SMC within their six times larger uncertainties. The spin dependent structure function g[sub 1](x) for the neutron was determined from the asymmetry measurement and, its integral over x is found to be [integral]g[sub 1][sup n](x)dx = -0.038 [+-] 0.009. This result is 2.7 standard deviations from the Ellis-Jaffe Sum Rule and combined with the EMC results from the proton in very good agreement with the Bjorken Sum Rule. In the Quark Parton Model (QPM), in conjunction with the weak coupling constants F and D, from baryon decay, the result implies that the quarks contribute approximately 32% of the nucleon helicity. Finally, different ways of evolving the data, based on various theoretical models, is attempted and future aspects for spin physics, with emphasis at spin physics at SLAC, are discussed.
Book Synopsis Measurement of Spin Structure Function of the Neutron G1n from Deep Inelastic Scattering of Polarized Electrons from Polarized Neutrons in 3He by : James Andrew Dunne
Download or read book Measurement of Spin Structure Function of the Neutron G1n from Deep Inelastic Scattering of Polarized Electrons from Polarized Neutrons in 3He written by James Andrew Dunne and published by . This book was released on 1995 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Spin Structure Function of the Neutron G1(N) from Deep Inelastic Scattering of Polarized Electrons from Polarized Neutrons in He-3 by :
Download or read book Measurement of the Spin Structure Function of the Neutron G1(N) from Deep Inelastic Scattering of Polarized Electrons from Polarized Neutrons in He-3 written by and published by . This book was released on 2004 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Spin Structure Of The Nucleon by : Bernard Frois
Download or read book The Spin Structure Of The Nucleon written by Bernard Frois and published by World Scientific. This book was released on 1998-02-24 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: From its early beginnings at SLAC in the 1970's, the study of nucleon spin structure using polarized lepton beams and polarized nucleon targets has become increasingly important in nuclear and particle physics, with current experiments at several of the world's high energy and nuclear physics laboratories (CERN, DESY, SLAC and Jefferson Lab) and with enormous related theoretical studies. The understanding of the fascinating but complicated problem of nucleon spin structure has progressed substantially, but fundamental questions remain and it can be confidently predicted that future activity will be high.The Erice Course on The Spin Structure of the Nucleon covered both the experimental and theoretical aspects of the subject, and this volume includes the lectures given at the School. In many cases the lecture material has been extended and updated by the authors. In addition, several recent publications on experimental work have been added in an appendix.
Book Synopsis The Spin Structure of the Neutron Determined Using a Polarized He-3 Target by :
Download or read book The Spin Structure of the Neutron Determined Using a Polarized He-3 Target written by and published by . This book was released on 2004 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Described is a study of the internal spin structure of the neutron performed by measuring the asymmetry in spin-dependent deep inelastic scattering of polarized electrons from nuclear polarized 3He. Stanford Linear Accelerator experiment E142's sample of 400 million scattering events collected at beam energies between 19 and 26 GeV led to the most precise measurement of a nucleon spin structure function to date. The 3He target represents a major advance in polarized target technology, using the technique of spin exchange with optically pumped rubidium vapor to produce a typical 3He nuclear polarization of 34% in a 30cm long target cell with a gas density of 2.3 x 102° cm−3. The target polarization was measured to "7% using an Adiabatic Fast Passage NMR system calibrated with the thermal equilibrium polarization of the protons in a sample of water. The relatively high polarization and target thickness were the result of the development of large volume glass target cells which had inherent nuclear spin relaxation times for the 3He gas of as long as 70 hours. A target cell production procedure is presented which focuses on special glass blowing techniques to minimize surface interactions with the 3He nuclei and careful gas purification and vacuum system procedures to reduce relaxation inducing impurities.
Book Synopsis Polarized Neutrons by : W. Gavin Williams
Download or read book Polarized Neutrons written by W. Gavin Williams and published by . This book was released on 1988 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the experimental condensed-matter researcher with a description of the variety of material characteristics which can now be investigated with polarized neutrons. Included are two extensive chapters on basic theory and currently available instrumentation, and a presentation and discussion of scientific results obtained from a wide range of experiments: diffraction, critical reflection, elastic and inelastic polarization analysis, and neutron spin precession methods like spin-echo spectroscopy.
Book Synopsis Neutron Spin Structure Study at Jefferson Lab Hall A. by :
Download or read book Neutron Spin Structure Study at Jefferson Lab Hall A. written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With a high-intensity highly-polarized 6 GeV electron beam, and a high-density polarized 3He target, we have carried out a number of experiments to study the neutron spin structure at Hall A in Jefferson Lab. Taking advantage of the high luminosity of Jefferson Lab, we completed two inclusive deep-inelastic-scattering experiments this summer. In the first, precision measurements were made of the spin asymmetry A(superscript n)1 in the valence quark (high Bjorken x) region; and in the second, higher-twist effects were studied via precision measurements of g(superscript n)2. Physics motivation and preliminary results from the first experiment will be presented and discussed. I will also present nearly final results from an earlier experiment, which measured the generalized GDH sum for the neutron in the Q2 range of 0.1 to 1 GeV2. Planned near-term experiments will be briefly discussed.
Author :Ralf Bernd Kaiser Publisher :National Library of Canada = Bibliothèque nationale du Canada ISBN 13 :9780612243194 Total Pages :504 pages Book Rating :4.2/5 (431 download)
Book Synopsis Measurement of the Spin Structure of the Neutron Using Polarised Deep Inelastic Scattering [microform] by : Ralf Bernd Kaiser
Download or read book Measurement of the Spin Structure of the Neutron Using Polarised Deep Inelastic Scattering [microform] written by Ralf Bernd Kaiser and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1997 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Determination of the Neutron Spin Structure Function by :
Download or read book A Determination of the Neutron Spin Structure Function written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report the results of the experiment E142 which measured the spin dependent structure function of the neutron, g[sub 1][sup n](x, Q[sup 2]). The experiment was carried out at the Stanford Linear Accelerator Center by measuring an asymmetry in the deep inelastic scattering of polarized electrons from a polarized[sup 3]He target, at electron energies from 19 to 26 GeV. The structure function was determined over the kinematic range 0.03
Book Synopsis Affiges: +Affiches+ des grands operateurs de Mirlinde by :
Download or read book Affiges: +Affiches+ des grands operateurs de Mirlinde written by and published by . This book was released on 1618 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Precision Measurement of the Neutron Spin Structure Functions Using a Polarized 3He Target by : Todd B. Smith
Download or read book A Precision Measurement of the Neutron Spin Structure Functions Using a Polarized 3He Target written by Todd B. Smith and published by . This book was released on 1998 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Symposium on the Internal Spin Structure of the Nucleon by : Vernon W. Hughes
Download or read book Symposium on the Internal Spin Structure of the Nucleon written by Vernon W. Hughes and published by World Scientific. This book was released on 1995 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Neutron Spin Structure Function and Its Implications for QCD Sum Rules by :
Download or read book Measurement of the Neutron Spin Structure Function and Its Implications for QCD Sum Rules written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors have determined the neutron spin structure function g[sub 1][sup n] over the range 0.03 [le] x [le] 0.6 at an average Q[sup 2] of 2(GeV/c)[sup 2] by measuring the asymmetry in deep inelastic scattering of polarized electrons from a polarized [sup 3]He target. The experiment was performed at SLAC and used energies between 19 and 26 GeV. The neutron asymmetry turned out to be small and negative, and the integral of the neutron spin structure function is [integral][sub 0][sup 1]g[sub 1][sup n](x)dx = -0.024 [+-] 0.006(stat.) [+-] 0.008(syst.). Combined with the current available worldwide proton data, this result confirmed the Bjorken sum rule at 10% level, once high-order perturbative QCD corrections are taken into account. The Ellis-Jaffe sum rule for the neutron predicts [integral][sub 0][sup 1] g[sub 1][sup n](x)dx = -0.010 [+-] 0.012, roughly consistent with their result.
Book Synopsis A Study of Nuclear Spin Structure Through Polarised Proton Deep Inelastic Scattering by : Mark Thomas MATTHEWS
Download or read book A Study of Nuclear Spin Structure Through Polarised Proton Deep Inelastic Scattering written by Mark Thomas MATTHEWS and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis SLAC Measurement of the Neutron Spin Structure Function by :
Download or read book SLAC Measurement of the Neutron Spin Structure Function written by and published by . This book was released on 1993 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: A measurement of the nucleon spin asymmetries from deep inelastic scattering of polarized electrons by polarized [sup 3]He has been performed. The neutron spin structure function g[sub 1][sup n] is extracted and used to test the Bjorken sum rule. The neutron integral assuming a simple Regge theory extrapolation at low x is [integral][sub 0][sup 1]g[sub 1][sup n](x)dx = [minus]0.022 [plus minus] 0.011. Combined with the EMC proton results, the Bjorken sum rule predicts a neutron integral of [integral][sub 0][sup 1]g[sub 1][sup n](x)dx = [minus]0.065 [plus minus] 0.018.
Book Synopsis A Study of Nucleon Spin Structure Through Polarised Muon Polarised Proton Deep Inelastic Scattering by : M. T. Matthews
Download or read book A Study of Nucleon Spin Structure Through Polarised Muon Polarised Proton Deep Inelastic Scattering written by M. T. Matthews and published by . This book was released on 1988 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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