F. Abe et al., MEASUREMENT OF SMALL-ANGLE ANTIPROTON-PROTON ELASTIC-SCATTERING AT ROOT-S=546 AND 1800 GEV, Physical review. D. Particles and fields, 50(9), 1994, pp. 5518-5534
Antiproton-proton elastic scattering was measured at c.m.s. energies r
oot s = 546 and 1800 GeV in the range of four-momentum transfer square
d 0.025 < -t < 0.29 GeV2. The data are well described by the exponenti
al form e(bt) with a slope b = 15.28 +/- 0.58 (16.98 +/- 0.25) GeV-2 a
t root s = 546 (1800) GeV. The elastic scattering cross sections are,
respectively, sigma(el) = 12.87 +/- 0.30 and 19.70 +/- 0.85 mb.