Study of the ΛN System in Low-Energy Λp Elastic Scattering

G. Alexander, U. Karshon, A. Shapira, G. Yekutieli, R. Engelmann, H. Filthuth, and W. Lughofer
Phys. Rev. 173, 1452 – Published 25 September 1968
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Abstract

The present paper is based on 378 Λp elastic scattering events in the incident-momentum region 120-320 MeVc. 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 Λp resonance has been found. Using the effective-range approximation, the four scattering parameters as, at, rs, and rt were evaluated with and without further assumptions on the Λp interaction properties. Best values obtained from the four-parameter fit were as=1.8, at=1.6, rs=2.8, and rt=3.3 F. A likelihood-function mapping procedure is used to describe the large and strongly correlated errors of these values.

  • Received 6 May 1968

DOI:https://doi.org/10.1103/PhysRev.173.1452

©1968 American Physical Society

Authors & Affiliations

G. Alexander, U. Karshon, A. Shapira, and G. Yekutieli

  • Nuclear Physics Department, The Weizmann Institute of Science, Rehovoth, Israel

R. Engelmann, H. Filthuth, and W. Lughofer

  • Institute for High Energy Physics, Heidelberg University, Heidelberg, Germany

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Issue

Vol. 173, Iss. 5 — September 1968

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