Pion-nucleus Inelastic Scattering in the Distorted-wave Born Approximation
Author: Gareth Winston Edwards
Publisher:
Published: 1972
Total Pages: 284
ISBN-13:
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Author: Gareth Winston Edwards
Publisher:
Published: 1972
Total Pages: 284
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DOWNLOAD EBOOKAuthor: James Arthur Carr
Publisher:
Published: 1981
Total Pages: 460
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DOWNLOAD EBOOKAuthor: Andrew Theodore Hess
Publisher:
Published: 1974
Total Pages: 390
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DOWNLOAD EBOOKAuthor: Robert J. Ascuitto
Publisher:
Published: 1971
Total Pages: 28
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DOWNLOAD EBOOKMicroscopic coupled-channel analysis of proton inelastic scattering from neon and magnesium ions.
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Publisher:
Published: 1976-04
Total Pages: 912
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Published: 1988
Total Pages:
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DOWNLOAD EBOOKUsing the Energetic Pion Channel and Spectrometer at the Los Alamos Meson Physics Facility, differential cross sections for pion scattering were measured for ten previously known J/sup .pi./ = 8/sup /minus// stretched states in 6°Ni. A possible new pure isoscalar stretched state was also found. The data were taken near the /DELTA//sub 3,3/-resonance using 162 MeV incident pions and scattering angles of 65°, 80°, and 90° for .pi. and 65° and 80° for .pi./sup /minus//. The analysis of the 6°Ni data found that the use of Woods-Saxon wave functions in the theoretical calculations gave much better agreement with data than the use of the usual harmonic oscillator wave functions. The WS theory gave better predictions of: the angle at which the .pi./sup /minus// and .pi. angular distributions are maximum, the ratios of .pi./sup /minus// to .pi.+ cross sections for pure isovector states (which were much larger than unity), and the absolute size of the cross sections for all states (so that the normalization factor necessary to arrive at agreement of theory with data was closer to unity). The theoretical calculations used the distorted wave impulse approximation, including new methods for unbound states. The sensitivities of the calculations to input parameters were investigated. This analysis using WS wave functions was extended to five other nuclei (12C, 14C, 16O, 28Si, and 54Fe) on which both pion scattering and electron scattering have been done. A significant improvement in arriving at a normalization factor close to unity was found when WS wave functions were consistently used for analyzing both pion and electron inelastic scattering data. 101 refs., 26 figs., 13 tabs.
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Publisher:
Published: 1972
Total Pages: 24
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Published: 1990
Total Pages: 980
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Published: 1991
Total Pages: 252
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DOWNLOAD EBOOKAuthor: Kenneth Edward Gilbert
Publisher:
Published: 1976
Total Pages: 512
ISBN-13:
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