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A Measurement Of The Polarization Of The Proton From The High Energy Photodisintegration Of Deuterium
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Book Synopsis A Measurement of the Polarization of the Proton from the High Energy Photodisintegration of Deuterium by : Paul Gorenstein
Download or read book A Measurement of the Polarization of the Proton from the High Energy Photodisintegration of Deuterium written by Paul Gorenstein and published by . This book was released on 1962 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Polarization Measurements in High-Energy Deuteron Photodisintegration by :
Download or read book Polarization Measurements in High-Energy Deuteron Photodisintegration written by and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present measurements of the recoil proton polarization for the d(polarized y, polarized p)n reaction at thetac.m. = 90 degrees for photon energies up to 2.4 GeV. These are the first data in this reaction for polarization transfer with circularly polarized photons. The induced polarization py vanishes above 1 GeV, contrary to meson-baryon model expectations, in which resonances lead to large polarizations. However, the polarization transfer Cx does not vanish above 1 GeV, inconsistent with hadron helicity conservation. Thus, we show that the scaling behavior observed in the d(y, p)n cross sections is not a result of perturbative QCD. These data should provide important tests of new nonperturbative calculations in the intermediate energy regime.
Book Synopsis Measurements of the polarization of protons from deuteron photodisintegration for photon energies between 282 and 405 MeV by : Karl Heinz Kissler
Download or read book Measurements of the polarization of protons from deuteron photodisintegration for photon energies between 282 and 405 MeV written by Karl Heinz Kissler and published by . This book was released on 1968 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recoil-Proton Polarization in High-Energy Deuteron Photodisintegration with Circularly Polarized Photons by :
Download or read book Recoil-Proton Polarization in High-Energy Deuteron Photodisintegration with Circularly Polarized Photons written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We measured the angular dependence of the three recoil-proton polarization components in two-body photodisintegration of the deuteron at a photon energy of 2 GeV. These new data provide a benchmark for calculations based on quantum chromodynamics. Two of the five existing models have made predictions of polarization observables. Both explain the longitudinal polarization transfer satisfactorily. Transverse polarizations are not well described, but suggest isovector dominance.
Book Synopsis Polarization of Protons from (d, P) Reactions at 21 Mev by : Edmund T. Boschitz
Download or read book Polarization of Protons from (d, P) Reactions at 21 Mev written by Edmund T. Boschitz and published by . This book was released on 1964 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Polarization of Photoneutrons from Deuterium by : Frederick V. Martin
Download or read book Measurement of the Polarization of Photoneutrons from Deuterium written by Frederick V. Martin and published by . This book was released on 1961 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Proton Polarization in the D({gamma}, P)n Reaction by :
Download or read book Measurement of Proton Polarization in the D({gamma}, P)n Reaction written by and published by . This book was released on 1995 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: A proposal was approved by CEBAF PAC7 to measure angular distributions of the proton polarization for the d([gamma], p)n reaction in the GeV region. This proposed measurement will test the validity of extensions of conventional nuclear-physics theories to the higher energy regime. The results of the experiment will further constrain the evidence from SLAC experiments NE8 and NE17 that asymptotic scaling was observed above a photon energy of 1.3 GeV. Photoproton polarization measurements at lower energy indicate that the magnitude of the polarization increases with energy. This is consistent with the observation that polarizations are large in high-energy processes, e.g. A{sub nn} in pp 2!pp scattering or A{sub y} in pp 2![pi]°X. However, the polarizations in hadron-hadron scattering are believed to arise from Landshoff mechanisms. The higher energy photoproton experiment will permit the first measurements of polarization for a reaction, [gamma]d 2!pn, where there are no Landshoff terms. The experiment would make use of a polarimeter installed in either the High Resolution Spectrometer in Hall A or the Short Orbit Spectrometer in Hall C at CEBAF.
Book Synopsis A Spark Chamber Measurement of the Polarization of High Energy Photoprotons from Deuterium, Lithium, and Carbon by : Thomas Otis White
Download or read book A Spark Chamber Measurement of the Polarization of High Energy Photoprotons from Deuterium, Lithium, and Carbon written by Thomas Otis White and published by . This book was released on 1964 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Polarization in Photodisintegration of the Deuteron by :
Download or read book Polarization in Photodisintegration of the Deuteron written by and published by . This book was released on 2001 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recoil proton polarization was measured in deuteron photodisintegration at theta{sub cm} = 90{sup o} for photon energies up to 2.4 GeV. The induced polarization py is consistent with vanishing above 1 GeV, in surprising disagreement with meson-baryon calculations. From pQCD it is generally expected that hadron helicity is conserved, but, the polarization transfer observables do not vanish. As the data are inconsistent with existing meson baryon model predictions, and with expectations from pQCD, we suggest that nonperturbative quark models will be needed to understand the underlying reaction dynamics.
Book Synopsis Angular Dependence of Recoil Proton Polarization in High-energy \gamma D \to P N by :
Download or read book Angular Dependence of Recoil Proton Polarization in High-energy \gamma D \to P N written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We measured the angular dependence of the three recoil proton polarization components in two-body photodisintegration of the deuteron at a photon energy of 2 GeV. These new data provide a benchmark for calculations based on quantum chromodynamics. Two of the five existing models have made predictions of polarization observables. Both explain the longitudinal polarization transfer satisfactorily. Transverse polarizations are not well described, but suggest isovector dominance.
Book Synopsis Proton Polarization Angular Distribution in Deuteron Photo-Disintegration by :
Download or read book Proton Polarization Angular Distribution in Deuteron Photo-Disintegration written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The apparent scaling in 90 cm deuteron photodisintegration, first observed several years ago at SLAC, has lead to several related experiments and a number ot theoretical calculations. We have in the past year measured in Hall A, with up to 2.5-GeV photons, cross sections at large angles and the proton polarization at 90cm. Verypreliminary online analysis of the induced polarizations yields the very surprising result that theinduced polarizations apparently vanish starting at about the same energy at whichthe existing cross section data start to scale, to follow the constituent countingrules. Given this result, we propose further measurements to see if this observationholds at other angles.
Book Synopsis A Polarized Proton Source for a Linear Accelerator and Measurement of Polarization in Scattering of Protons on Carbon by : Bailey Lewis Donnally
Download or read book A Polarized Proton Source for a Linear Accelerator and Measurement of Polarization in Scattering of Protons on Carbon written by Bailey Lewis Donnally and published by . This book was released on 1961 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measuraements of the Polarization of Protons from Deuteron Photodisintegration for Photon Energies Between 282 and 405 MeV by :
Download or read book Measuraements of the Polarization of Protons from Deuteron Photodisintegration for Photon Energies Between 282 and 405 MeV written by and published by . This book was released on 1969 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Elastic Scattering of Polarized Protons on Deuterium at 800 MeV. by :
Download or read book Elastic Scattering of Polarized Protons on Deuterium at 800 MeV. written by and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A specific set of spin transfer coefficients has been measured for proton-deuteron elastic scattering at 800 MeV using an unpolarized liquid deuterium target. The experiment was done using the High Resolution Spectrometer (HRS) at the Los Alamos Meson Physics Facility (LAMPF) with a polarized proton beam. The scattered proton spin direction was determined using the Focal Plane Polarimeter (FPP) of the HRS, which employs a carbon analyzer. Some of the spin dependent parameters measured in this experiment are of considerable interest because they provide selective information about the nucleon-nucleon (NN) amplitude. Since the deuteron is the simplest bound nucleus, pd elastic scattering is particularly well suited for testing multiple scattering theories. These measurements will also be used to eventually determine the full pd collision matrix, which contains all possible information about the scattering process. In addition, the experimental setup is described for a polarized proton-polarized deuterium target spin transfer experiment also done at the HRS at 800 MeV incident proton energy. 71 references.
Book Synopsis Radiative Capture of Polarized Protons by Deuterium in the Energy Range Ep(lab) by : Gregory Joseph Schmid
Download or read book Radiative Capture of Polarized Protons by Deuterium in the Energy Range Ep(lab) written by Gregory Joseph Schmid and published by . This book was released on 1995 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976-04 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1951 with total page 1298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
