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A precise measurement of the real part of the elastic scattering amplitude at the Sp(bar)pS.

The UA4/2 collaboration Augier, C. ; Bernard, D. ; Bourotte, J. ; et al.
Phys.Lett.B 316 (1993) 448-454, 1993.
Inspire Record 358433 DOI 10.17182/hepdata.28818

A precise measurement of p̄p elastic scattering in the Coulomb-strong interaction interference region was performed at the CERN Sp̄pS Collider at a centre-of-mass energy of 541 GeV. The ratio of the real to the imaginary part of the forward elastic scattering amplitude was found to be ρ = 0.135 ± 0.015. The slope of the exponential fall off of the strong interaction part was also measured to be b = 15.5 ± 0.1 GeV −2 .

2 data tables
Table 1

No description provided.

Table 2

Real part of amplitude extracted using a more precise UA4 measurement. (1 +RE(AMP)/IM(AMP)**2)SIG(TOT) = 63.5 +- 1.5 MB (Bozzo et al. PL 147B(1984)392).