Universal properties of elastic pp cross section from the ISR to the LHC
Abstract
We explore the phenomenology of the property that the ratio of bump to dip positions of the elastic differential pp cross section is constant over the energy range from the ISR to the LHC. We review the old idea of geometric scaling at the ISR and argue that it also holds at the LHC. We discuss its consequences for the parameter and for the ratio of bump to dip cross section values.
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