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Slac Measurement Of The Neutron Spin Structure Function
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Book Synopsis SLAC Measurements of the Neutron Spin-structure Function by :
Download or read book SLAC Measurements of the Neutron Spin-structure Function written by and published by . This book was released on 1993 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results from a measurement of the neutron spin-dependent structure function g1(superscript n)(x) over a range in x from 0.03 to 0.6 and with Q2> 1 (GeV/c)2 are presented. The experiment consisted of scattering a longitudinally polarized electron beam from the Stanford Linear Accelerator off a polarized 3He target and detecting scattered electrons in two magnetic spectrometers. The results are interpreted in the quark-parton model and used to test the Bjorken sum rule.
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 Spin-structure Function of the Neutron (3He) by :
Download or read book Spin-structure Function of the Neutron (3He) written by and published by . This book was released on 1993 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: A first measurement of the longitudinal asymmetry of deep-inelastic scattering of polarized electrons from a polarized 3He target at energies ranging from 19 to 26 GeV has been performed at SLAC. The spin-structure function of the neutron g1(superscript n) has been extracted from the measured asymmetries allowing for a test of the Ellis-Jaffe and Bjorken sum rules. The Quark Parton Model (QPM) interpretation of the nucleon spin-structure function is examined in light of the new results.
Download or read book Fron written by and published by . This book was released on 1960 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Spin Structure of the Neutron by :
Download or read book The Spin Structure of the Neutron written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A description of SLAC experiment E154, a precision measurement of the neutron's longitudinal spin structure function g[sub 1][sup n], is presented. Deep inelastic electron scattering was used to measure the structure function in the kinematic range 0.014
Book Synopsis The Spin Structure of the Neutron by : S. Churchwell
Download or read book The Spin Structure of the Neutron written by S. Churchwell and published by . This book was released on 2003 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: A description of SLAC experiment E154, a precision measurement of the neutron's longitudinal spin structure function g{sub 1}{sup n}, is presented. Deep inelastic electron scattering was used to measure the structure function in the kinematic range 0.014
Book Synopsis Measurements of the Neutron Polarized Structure Function at SLAC. by :
Download or read book Measurements of the Neutron Polarized Structure Function at SLAC. written by and published by . This book was released on 1995 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recent SLAC Measurements of the Spin Dependent Structure Functions for the Proton and Neutron by :
Download or read book Recent SLAC Measurements of the Spin Dependent Structure Functions for the Proton and Neutron written by and published by . This book was released on 1995 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 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 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 A Precise Measurement of the Spin Structure Functions G[p2] and G[d2] from Slac Experiment E155X by : Dustin Edward McNulty
Download or read book A Precise Measurement of the Spin Structure Functions G[p2] and G[d2] from Slac Experiment E155X written by Dustin Edward McNulty and published by . This book was released on 2002 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Precision Measurement of the Neutron Spin Dependent Structure Functions by :
Download or read book Precision Measurement of the Neutron Spin Dependent Structure Functions written by and published by . This book was released on 1997 with total page 287 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 20 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 An Overview of the SLAC Results by :
Download or read book An Overview of the SLAC Results written by and published by . This book was released on 1996 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The history of nucleon spin-structure measurements goes back to the early days of inelastic electron scattering at SLAC, when Vernon Hughes came with a proposal to accelerate polarized electrons to high energy and to study inelastic scattering from a polarized proton target. The quark model of the proton was new at the time, and the spin-dependent structure functions were an excellent testing ground for that model. The proposal developed into an experiment which became SLAC experiment E80. Subsequent experiments followed those early studies, leading to E130 at SLAC, then EMC at CERN, and a host of later experiments. In 1988 the EMC Collaboration published the first data to reach low x. The asymmetries EMC observed fell below quark model expectations, and the experimentally measured proton sum rule indicated that the spin of the quarks contributed little to the proton spin. The subject of nucleon spin-dependent structure functions was stimulated by this surprising result from EMC. The continuation of the spin-structure studies at SLAC, which have been very active in recent years, was stimulated by the successful development of high-intensity beams of polarized electrons. Table 1 lists the past, present, and planned programs and experiments that grew out of the early work. The rest of the report is divided into the following topics: polarized electrons; polarimetry; the SLAC spectrometers; radiative corrections; the proton measurements; neutron targets; the deuterium and 3He data; the g2 structure function; and the 50 GeV upgrade of the SLC.
Book Synopsis SLAC (Stanford Linear Accelerator Center) Experiment E142 by :
Download or read book SLAC (Stanford Linear Accelerator Center) Experiment E142 written by and published by . This book was released on 1990 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deep inelastic scattering experiments to measure the proton spin- dependent structure function were first pioneered in SLAC experiments in the 1970's (1). These early experiments established the existence of large asymmetries in the spin structure of the proton predicted by the parton model. Despite the success, the results did not appear to be revealing new fundamental insights into the models. The experiments were, moreover, difficult, and SLAC's interest in constructing a linear collider to study the Z0 boson ended the program to study in more detail the nucleon spin-dependent structure functions. In May of this year, SLAC reopened the study of this field of physics by approving experiment E142--an experiment to measure the neutron spin-dependent structure function. In this report, I describe the goals of experiment E142 and how we hope to achieve them.
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