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Strong Shrinkage of the Effective Core at High Energy
Phys. Rev. 134, B682 – Published 11 May, 1964
DOI: https://doi.org/10.1103/PhysRev.134.B682
Abstract
On the basis of analyticity alone it is shown that in the high-energy limit the partial-wave amplitude for do not contribute substantially to the scattering amplitude for finite angles. For an angle depending upon this result can be extended to show that the contribution to the scattering amplitude from for is smaller than any power of . Here and are the square of the energy and the scattering angle in the center-of-mass system. Classically, this means that a bombarding particle whose impact parameter is larger than the shrinking quantity cannot be appreciably scattered through an angle . It is necessary to use the unitarity condition only when this result is used to put an upper bound on . Here is assumed to be analytic as a function of in an -independent complex neighborhood of the real segment (-1, 1) except for its intersection with the cuts from to and from to , being an arbitrary function with . Finally the forward and backward peaks are discussed and it is proved that the right- (left-) hand cut contributes only to the forward (backward) peak and not to the backward (forward) peak.
References (9)
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Omitted endnote
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Omitted endnote
Omitted endnote
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Omitted endnote