References
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A better figure for the K-p cross-section was reported at the Washington Meeting of the American Physical Society (May 1958), which is quoted in Table I.
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It must be mentioned that a similar analysis of some new data at 125 MeV gave a best value ofV = (21 ± 4) MeV,Melkanoff, Price, Stork andTicho: private communication.
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The nucleon density assumed in the optical model calculations follows the form of the Saxon potential and assuring the K-nucleon force to be short range we may have some confidence that the radius parameter.r 0, approximates to that found from electron scattering experiments: 1.07 fermi. The nucleon density is certainly more realistically represented by the Saxon potential than by the square-well which has been assumed in the calculation of the shading correction made above. Previous K-meson optical model calculations have also used these same parameters and a comparison, at least, is useful.
We are very grateful to ProfessorH. K. Ticho for his interest and for his help in this analysis.
It has been shown (15) that the effect of double scattering (neglected here) is to significantly increase this ratio. Thus, when double scattering is taken into account, the above condition on thep-wave phase shifts may be expected to become less restrictive.
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Part of this work was reported together with some of the data from the Padua group at te Washington Meeting of the American Phyhsical Society, May 1958.
Partially supported by the United States Atomic Energy Commission.
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Evans, D., Hassan, F., Kagpaul, K.K. et al. On the scattering of (200 ÷ 300) MeV K+-mesons. Nuovo Cim 10, 168–174 (1958). https://doi.org/10.1007/BF02859617
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DOI: https://doi.org/10.1007/BF02859617