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A Precise Measurement Of The Spin Structure Functions Gp2 And Gd2 From Slac Experiment E155x
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Book Synopsis A Precise Measurement of the Spin Structure Functions G**P(2) G**D(2) from SLAC Experiment E155X. by : D. McNulty
Download or read book A Precise Measurement of the Spin Structure Functions G**P(2) G**D(2) from SLAC Experiment E155X. written by D. McNulty and published by . This book was released on 2003 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: A precision measurement of the deep inelastic polarized structure functions g{sub 2}{sup p} (x, Q{sup 2}) and g{sub 2}{sup d} (x, Q{sup 2}) and the virtual photon asymmetries A{sub 2}{sup p}(x, Q{sup 2}) and A{sub 2}{sup d}(x, Q{sup 2}) has been made by the E155x collaboration in the ranges 0.02
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 A Precise Measurement Fo the Spin Structure Functions G**P(2)G**D(2) from SLAC Experiment E155X. by : Dustin Edward McNulty
Download or read book A Precise Measurement Fo the Spin Structure Functions G**P(2)G**D(2) from SLAC Experiment E155X. written by Dustin Edward McNulty and published by . This book was released on with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spin Structure Functions of the Proton and Deuteron From SLAC Experiments E155 and E155X. by :
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.
Book Synopsis Extract og Register over Deres Kongelige Majestæters Til Danmark og Norge &c. Forordninger, Forbude, Ordonancer, Fundatzer, Teglements, Laugs-Artikler, Privilegier, Rescripter og Placater, som fra Aaret 1670 til 1768 ere udgangne ved Martinus Nissen by :
Download or read book Extract og Register over Deres Kongelige Majestæters Til Danmark og Norge &c. Forordninger, Forbude, Ordonancer, Fundatzer, Teglements, Laugs-Artikler, Privilegier, Rescripter og Placater, som fra Aaret 1670 til 1768 ere udgangne ved Martinus Nissen written by and published by . This book was released on 1793 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Precision Measurement of the Spin Structure Function G1(x,Q2) by : Gregory S. Mitchell
Download or read book A Precision Measurement of the Spin Structure Function G1(x,Q2) written by Gregory S. Mitchell and published by . This book was released on 1999 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Precise Measurement of the Spin Structure Functions G1[p] and G1[d] by : Terrence S. Toole
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:
Book Synopsis A Precision Measurement of the Spin Structure Function G(2)(P). by :
Download or read book A Precision Measurement of the Spin Structure Function G(2)(P). written by and published by . This book was released on 2004 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: The spin structure function g2(x, Q2) and the virtual photon asymmetry A2(x, Q2) were measured for the proton using deep inelastic scattering. The experiment was conducted at the Stanford Linear Accelerator Center (SLAC), where longitudinally polarized electrons at 29.1 and 32.3 GeV were scattered from a transversely polarized NH3 target. Large data sets were accumulated using three independent spectrometers covering a kinematic range 0.02 (less-than or equal to) x (less-than or equal to) 0.8 and 1 (less-than or equal to) Q2 (less-than or equal to) 20 (GeV/c)2. This new data is the first data precise enough to distinguish between current models for the proton. The structure function g2{sup p} was found to be reasonably consistent with the twist-2 Wandzura-Wilczek calculation. The Q2 dependence of g2 approximately follows the Q2 dependence of g2{sup WW}, although the data are not precise enough to rule out no Q2 dependence. The absolute value for A2{sup p} was found to be significantly smaller than the Soffer limit over the measured range. The virtual photon asymmetry A2 was also found to be inconsistent with zero over much of the measured range.
Download or read book Sala São Paulo written by and published by . This book was released on 1999 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Precision Measurement of the Spin Structure Function G2[superscript P] by : Nawal Benmouna
Download or read book A Precision Measurement of the Spin Structure Function G2[superscript P] written by Nawal Benmouna and published by . This book was released on 2001 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis RESULTS AND INTERPRETATIONS OF THE SPIN STRUCTURE EXPERIMENTS AT SLAC. by :
Download or read book RESULTS AND INTERPRETATIONS OF THE SPIN STRUCTURE EXPERIMENTS AT SLAC. written by and published by . This book was released on 2003 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the recent experiments E154 and E155 at SLAC the spin-dependent structure functions g1(superscript n), g1{sup p}, and g1{sup d} of the neutron, proton, and deuteron were measured by scattering longitudinally polarized 48:3 GeV electrons off longitudinally polarized targets. We report on the measurement of g1(superscript n) by E154, and on the preliminary results on g1° from E155. The SLAC results provide the most precise determination to date of the polarized structure functions. We observe relatively large values of g1(superscript n) at low x that call into question the reliability of data extrapolation to x -> 0. Such divergent behavior disagrees with predictions of the conventional Regge theory, but is qualitatively explained by perturbative QCD. We perform a Next-to-Leading Order perturbative QCD analysis of the world data on the nucleon spin-dependent structure functions. Using the parameterizations of the helicity-dependent parton distributions obtained in the analysis, we evolve the data to Q2 = 5 GeV2, determine the first moments of the polarized structure functions of the proton and neutron, and find agreement with the Bjorken sum rule.
Book Synopsis Spin Physics Experiments at SLAC. by :
Download or read book Spin Physics Experiments at SLAC. written by and published by . This book was released on 2002 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent results from E155 and E155x on the g1 and g2 spin structure functions of the proton and neutron are presented. Plans for future experiments using polarized photon beams are discussed.
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