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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 91 to 100 of 4219 (0.064 seconds)| 91 |
PRECISION MEASUREMENTS OF THE NEUTRON ELECTRIC FORM FACTOR AT HIGH MOMENTUM TRANSFERSKolarkar, Ameya Suresh 01 January 2008 (has links)
The neutron, although electrically neutral, is composed of elementary charged particles and as a result, possesses a charge distribution within. The charge distribution can be studied by measuring a quantity called the neutron electric form factor, GnE. Experiment E02-013 at Jefferson Lab’s Hall A measured GnE at high four-momentum transfer values of Q2 = 1.2, 1.7, 2.5 and 3.4 (GeV/c)2 in double polarized semi-exclusive 3He(e, e'n) scattering in quasi-elestic kinematics by measuring the transverse asymmetry AT of the cross section.
The neutron electric form factor is essential to know for a variety of reasons. Results from the recent Jefferson Lab experiment on the proton revealed interesting features at these momentum transfers, whereas no accurate data for the neutron is available. Also the recent development in Generalized Parton Distributions (GPDs) necessitates the need for precise values for GnE in Q2 range between 1 and 10 (GeV/c)2; they appear as limiting conditions for certain GPD functions, for example, to constrain spin-flip GPDs. The experiment used the polarized 3He target and the polarized CEBAF electron beam at energies of about 1.52, 2.08, 2.64 and 3.29 GeV. The electrons were detected in the BigBite spectrometer and the neutrons in a large array of scintillators in coincidence with the electrons.
In this dissertation, we report a preliminary result, GnE = 0.03457 ± 0.007239 at Q2 = 1.7 (GeV/c)2.
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| 92 |
The gaseous environment of quasarsBremer, Malcolm Neal January 1993 (has links)
No description available.
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| 93 |
Aperture synthesis observations of the Sunyaev-Zel'dovich effectJones, Michael Edward January 1990 (has links)
No description available.
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| 94 |
Studies in out-flowing material in star-forming regionsRussell, Adrian Paul Grenville January 1987 (has links)
No description available.
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| 95 |
Some aspects of particle creation from charged black holesLohiya, D. January 1982 (has links)
No description available.
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| 96 |
Very long baseline interferometry at 81.5 MHzHartas, J. S. January 1983 (has links)
No description available.
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| 97 |
Cosmological evolution at edges of the radio source populationDingley, Stephen John January 1990 (has links)
No description available.
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| 98 |
Seismological traits of the sun's interior structureEllis, Anthony Nicholas January 1988 (has links)
No description available.
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| 99 |
Observations and models of molecular cloudsMartin, H. M. January 1983 (has links)
No description available.
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| 100 |
The rich star clusters in the Large Magellanic CloudElson, R. A. W. January 1986 (has links)
No description available.
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