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26 April 2024 |
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Article overview
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Extracting forward strong amplitudes from elastic differential cross sections | | C. M. Chen
; D. J. Ernst
; Mikkel B. Johnson
; | | Date: |
11 Jul 2001 | | Subject: | nucl-th | | Affiliation: | Saint John’s and Saint Mary’s Institute of Technology), D. J. Ernst (Vanderbilt University and Jefferson Laboratory), Mikkel B. Johnson (Los Alamos National Laboratory | | Abstract: | The feasibility of a model-independent extraction of the forward strong amplitude from elastic nuclear cross section data in the Coulomb-nuclear interference region is assessed for $pi$ and $K^+$ scattering at intermediate energies. Theoretically-generated "data" are analyzed to provide criteria for optimally designing experiments to measure these amplitudes, whose energy dependence (particularly that of the real parts) is needed for disentangling various sources of medium modifications of the projectile-nucleon interaction. The issues considered include determining the angular region over which to make the measurements, the role of the most forward angles measured, and the effects of statistical and systematic errors. We find that there is a region near the forward direction where Coulomb-nuclear interference allows reliable extraction of the strong forward amplitude for both pions and the $K^+$ from .3 to 1 GeV/c. | | Source: | arXiv, nucl-th/0107032 | | Services: | Forum | Review | PDF | Favorites | |
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