The present paper is based on 378 A-p elastic scattering events in the incident-momentum region 120-320 MeV/c. Differential and total cross sections have been measured in several momentum intervals and found to be consistent with predominantly S-wave scattering. No significant indication for the existence of a low-energy A-p resonance has been found. Using the effective-range approximation, the four scattering parameters a s , a t , r Sf and r t were evaluated with and without further assumptions on the A-p interaction properties. Best values obtained from the four-parameter fit were #«= -1.8, a t = -1.6, r s = 2.8, and r t = 3.3 F. A likelihood-function mapping procedure is used to describe the large and strongly correlated errors of these values. LOW-ENERGYA-p ELASTIC SCATTERING

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