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A Precision Measurement Of The Spin Structure Of The Proton At Slac
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Book Synopsis A Precision Measurement of the Spin Structure of the Proton at SLAC. by :
Download or read book A Precision Measurement of the Spin Structure of the Proton at SLAC. written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: E143 at SLAC Endstation A performed deep-inelastic scattering measurements of polarized electrons from polarized protons and deuterons within cryogenic[sup 15]NH[sub 3] and[sup 15]ND[sub 3], respectively. Data were taken at incident energies of 29.1, 16.2 and 9.7 GeV, and covered the kinematical range x> 0:03 and 0:3Q[sup 2]
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 Measurment of the Spin Structure of the Proton at SLAC by : Robin Diane Erbacher
Download or read book A Precision Measurment of the Spin Structure of the Proton at SLAC written by Robin Diane Erbacher and published by . This book was released on 1999 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Precision Measurement of the Spin Structure of the Proton and the Deuteron by : Frank R. Wesselmann
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:
Book Synopsis Precision Measurement of the Spin Structure of the Proton and the Deuteron by :
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
Book Synopsis A Precision Measurement of the Spin Structure Function G1(x, Q2) for the Proton and Deuteron by :
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
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 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.
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 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 Precision Measurement of the Neutron Spin Structure Functions Using a Polarized HE-3 Target by : T. Smith
Download or read book A Precision Measurement of the Neutron Spin Structure Functions Using a Polarized HE-3 Target written by T. Smith and published by . This book was released on 2003 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes a precision measurement of the neutron spin dependent structure function, g{sub 1}{sup n}(x). The measurement was made by the E154 collaboration at SLAC using a longitudinally polarized, 48.3 GeV electron beam, and a {sup 3}He target polarized by spin exchange with optically pumped rubidium. A target polarization as high as 50% was achieved. The elements of the experiment which pertain to the polarized {sup 3}He target will be described in detail in this thesis. To achieve a precision measurement, it has been necessary to minimize the systematic error from the uncertainty in the target parameters. All of the parameters of the target have been carefully measured, and the most important parameters of the target have been measured using multiple techniques. The polarization of the target was measured using nuclear magnetic resonance techniques, and has been calibrated using both proton NMR and by measuring the shift of the Rb Zeeman resonance frequency due to the {sup 3}He polarization. The fraction of events which originated in the {sup 3}He, as measured by the spectrometers, has been determined using a physical model of the target and the spectrometers. It was also measured during the experiment using a variable pressure {sup 3}He reference cell in place of the polarized {sup 3}He target. The spin dependent structure function g{sub 1}{sup n}(z) was measured in the Bjorken x range of 0.014
Book Synopsis The Spin Structure Function of the Proton from SLAC Experiment E155 by :
Download or read book The Spin Structure Function of the Proton from SLAC Experiment E155 written by and published by . This book was released on 2004 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiment E155 at the Stanford Linear Accelerator Center (SLAC) measured the longitudinal and transverse deep inelastic structure functions of the proton and deuteron using a polarized, 48.3 GeV electron beam and solid polarized targets of ammonia (15NH3) for proton measurements and lithium deuteride (6Li2H) for deuteron measurements. Three electromagnetic spectrometers at angles of 2.75{sup o}, 5.5{sup o}, and 10.5{sup o} measured the scattered electrons. This work presents an analysis of the longitudinal structure function of the proton, g1{sup p}(x, Q2). Included is a re-analysis of the proton target polarization data that for the first time corrects a problem encountered which altered those measurements.
Book Synopsis Spin Structure Measurements from E143 at SLAC. by :
Download or read book Spin Structure Measurements from E143 at SLAC. written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements were made of the proton and deuteron spin structure functions g[sub 1][sup p] and g[sub 1][sup d] at beam energies of 29.1, 16.2, and 9.7 GeV, and g[sub 2][sup p] and g[sub 2][sup d] at a beam energy of 29.1 GeV. The integrals[Lambda][sub p]=[integral][sub 0][sup 1] g[sub 1][sup p] (x, Q[sup 2])dx and[Lambda][sub d]=[integral][sub 0][sup 1] g[sub 1][sup d](x, Q[sup 2])dx were evaluated at fixed Q[sup 2]= 3 (GeV/c)[sup 2] using the 29.1 GeV data to yield[Lambda][sub p]= 0.127[+-] 0.004(stat.)[+-] 0.010(syst.) and[Lambda][sub d]= 0.041[+-] 0.003[+-] 0.004. The Q[sup 2] dependence of the ratio g[sub 1]/F[sub 1] was studied and found to be small for Q[sup 2]> 1 (GeV/c)[sup 2]. Within experimental precision the g[sub 2] data are well-described by the twist-2 contribution, g[sub 2][sup WW]. Twist-3 matrix elements were extracted and compared to theoretical predictions. The asymmetry A[sub 2] was measured and found to be significantly smaller than the positivity limit[radical]R for both proton and deuteron targets. A[sub 2][sup p] is found to be positive and inconsistent with zero.
Book Synopsis Measurements of Spin Structure Function G[p]1 and G[d]1 for Proton and Deuteron at SLAC E143 by : Tingjun Liu
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 脳性麻痺の運動特性に関する研究 written by and published by . This book was released on 2000 with total page 102 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:
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