A measurement of the total cross-sections for Λ hyperon interactions on protons and neutrons in the momentum range from 6 GeV/c to 21 GeV/c
1972; Elsevier BV; Volume: 40; Issue: 1 Linguagem: Inglês
10.1016/0370-2693(72)90306-1
ISSN1873-2445
AutoresSturla Gjesdal, G. Presser, P. Steffen, J. Steinberger, F. Vannucci, H. D. Wahl, K. Kleinknecht, V. Lüth, G. Zech,
Tópico(s)High-Energy Particle Collisions Research
ResumoThe Λp, Λn, Λp, and Λn total cross-sections were measured in the Λ momentum interval 6–21 GeV/c. Within the experimental uncertainties the cross-sections are momentum-independent in this interval and the momentum-averaged cross-sections are found to be: σ(Λp) = 34.6 ± 0.4 mb: σ(Λn) = 34.0 ± 0.8 mb;σ(Λp) = 56 ± 11 mb; σ(Λn) = 46 ± 20 mb. The first two results are in agreement with charge symmetry, and with simple quark model sum rules applied to previous results on pp, K-n, and π+p total cross-sections.
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