We report a measurement of the proton-antiproton total cross section σT at c.m.s. energies {}s =546 and 1800 GeV. Using the luminosity-independent method, we find σT=61.26±{}0.93 mb at {}s =546 GeV and 80.03±{}2.24 mb at {}s =1800 GeV. In this energy range, the ratio σₑₗ/σT increases from 0.210±{}0.002 to 0.246±{}0.004.
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Abe et al. (1994) studied this question.