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Energy dependence of the valon-valon matter form factor
Phys. Rev. D 32, 586 – Published 1 August, 1985
DOI: https://doi.org/10.1103/PhysRevD.32.586
Abstract
Using the short-range-expansion formalism we simultaneously fit the pp elastic differential cross section (DCS) as √s =52.8 GeV and the newest p¯p DCS data measured by UA4 at the CERN SPS p¯p collider (Sp¯pS). This amounts to a prediction of the large-t behavior of the Sp¯pS DCS. The corresponding valon-valon matter form factor has a zero at a smaller than it has at √s =52.8 GeV. We show that, as s increases from CERN ISR to Sp¯pS and beyond, the valon, like its host hadron, becomes larger and blacker while still remaining about half the size of its host. A qualitative physical explanation of this behavior is suggested.
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