Download or read book Measurement of the Proton and Deuteron Spin Structure Functions G1 and G2 written by and published by . This book was released on 2003 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The SLAC experiment E155 was a deep-inelastic scattering experiment that scattered polarized electrons off polarized proton and deuteron targets in the effort to measure precisely the proton and deuteron spin structure functions. The nucleon structure functions g1 and g2 are important quantities that help test our present models of nucleon structure. Such information can help quantify the constituent contributions to the nucleon spin. The structure functions g1{sup p} and G1{sup d} have been measured over the kinematic range 0.01 ≤ x ≤ 0.9 and 1 ≤ Q2 ≤ 40 GeV2 by scattering 48.4 GeV longitudinally polarized electrons off longitudinally polarized protons and deuterons. In addition, the structure functions g2{sup p} and g2{sup d} have been measured over the kinematic range 0.01 ≤ x ≤ 0.7 and 1 ≤ Q2 ≤ 17 GeV2 by scattering 38.8 GeV longitudinally polarized electrons off transversely polarized protons and deuterons. The measurements of g1 confirm the Bjorken sum rule and find the net quark polarization to be [Delta][Sigma] = 0.23 ± 0.04 ± 0.6 while g2 is found to be consistent with the g2{sup WW} model.
Download or read book Measurement of the Proton and Deuteron Spin Structure Functions G1 and G2 written by William Alexander Tobias and published by . This book was released on 2001 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurements of Spin Structure Function G1 P and G1 D for Proton and Deuteron at SLAC E143 written by and published by . This book was released on 2004 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: E143 was a high precision measurement of the proton and deuteron spin structure functions g1 and g2 in SLAC's End Station A facility, with longitudinally and transversely polarized NH3 and ND3 targets, and a longitudinally polarized electron beam. The experiment was done, at beam energies of 29, 16 and 9.7 Gev. The deeply inelastic scattered electrons were detected by two independent spectrometers at 4.5{sup o} and 7{sup o} relative to the incident electron beam. At a beam energy of 29 Gev, the measurements covered the Bjorken x range from 0.03 to 0.8, and the Q2 range from 1.2 (GeV/c)2 to 9.8 (GeV/c)2 . It was found that the +"1 g1{sup p}(x, Q2)dx is more than two standard deviations away from the Ellis-Jaffe sum rule, and the corresponding deuteron integral is more than three standard deviations away from the Ellis-Jaffe's rule, but the Bjorken sum rule is consistent with the experimental data. Tests of the sum rules at different values of Q2, and the implications of these results for the quark-parton model have also been done.
Download or read book Spin Structure Functions G1 and G2 for the Proton and Deuteron written by and published by . This book was released on 1999 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The experiment E155 at SLAC measured the spin structure functions g1 and g2 of the proton and deuteron. The experiment used deep inelastic scattering of 48.3 GeV longitudinally polarized electrons incident on polarized solid 15NH3 and 6LiD targets. The data taken by three independent spectrometers covered a kinematic range of 0.014
Download or read book Precision Measurement of the Spin Structure of the Proton and the Deuteron written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiment E155 at the Stanford Linear Accelerator Center measured the spin structure functions g1 and g2 of the proton and deuteron using deep inelastic scattering of 50 GeV polarized electrons from dynamically polarized, solid 15NH3 and LiD targets. Three independent spectrometers, covering a large kinematic region, 0.014
Download or read book Measurement of Spin Structure Function G1 for the Proton and Deuteron in the Resonance Region written by Paul Edgar Raines and published by . This book was released on 1996 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of the Spin Structure Function G2 x Q2 for the Proton and Deuteron written by Todd Denson Averett and published by . This book was released on 1995 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spin Structure Functions of the Proton and Deuteron From SLAC Experiments E155 and E155X written by and published by . This book was released on 2003 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments E155 and E155X at SLAC were polarized deep inelastic scattering measurements of the parallel and perpendicular scattering asymmetries. We extracted the polarized structure functions g1 and g2 of the proton and deuteron. Both experiments made precision measurements through a wide range in x and Q2. These data fall into the kinematic range between existing world data and have good consistency with them. In combination with the other world data, the results for g1 allow increased constraint on NLO QCD fits to the polarized structure functions. For g2 no significant world data existed before E155X. The E155X measurement provides information about the higher twist effects in the nucleon.
Download or read book Spin Structure Moments of the Proton and Deuteron written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Moments of the spin structure functions g1 and g2 of the proton and deuteron have been measured in the resonance region at intermediate four momentum transfer. We perform a Nachtmann moment analysis of this data, along with isovector and isoscalar combinations, in order to rigorously account for target mass effects. This analysis provides the first definitive evidence for dynamic higher twists.
Download or read book Measurement of the Proton and Deuteron Spin Structure Functions G2 and Asymmetry A2 written by and published by . This book was released on 1999 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have measured the spin structure functions g2{sup p} and g2{sup d} and the virtual photon asymmetries A2{sup p} and A2{sup d} over the kinematic range 0.02
Download or read book Precision Measurement of the Spin Structure of the Proton and the Deuteron written by Frank R. Wesselmann and published by . This book was released on 2000 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Precise Determination of the Spin Structure Function G1 of the Proton Deuteron and Neutron written by HERMES Collaboration and published by . This book was released on 2006 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Precision Measurement of the Spin Structure Function G1 x Q2 for the Proton and Deuteron written by and published by . This book was released on 1999 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: A precision measurement of the spin structure function g1(x, Q2) for both the proton and deuteron was made using deep inelastic scattering of the 48.35 GeV polarized electron beam at the Stanford Linear Accelerator Center. The kinematic range of the measurement was 0.014
Download or read book Measurement of the Spin Structure Function G1 x Q2 of the Proton in the Resonance Region written by Yelena Alexandrovna Prok and published by . This book was released on 2004 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurements of Spin Structure Function G p 1 and G d 1 for Proton and Deuteron at SLAC E143 written by Tingjun Liu and published by . This book was released on 1996 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Precise Measurement of the Spin Structure Functions G1 p and G1 d written by Terrence S. Toole and published by . This book was released on 2000 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
