Elsevier

Nuclear Physics B

Volume 208, Issue 2, 29 November 1982, Pages 189-227
Nuclear Physics B

Study of the reactions K±p→Ks0π±p at 30 and 50 GeV/c Description of the apparatus and amplitude analysis of the Ks0π system

https://doi.org/10.1016/0550-3213(82)90114-6Get rights and content

Abstract

The reactions K±p→Ks0π±p are studied at 30 and 50 GeV/c. Data for these reactions were obtained using the Geneva-Lausanne spectrometer whose main characteristics are: (i) large forward acceptance; (ii) high-resolution time-of-flight for recoil proton momentum measurement; (iii) high data-taking rate and on-line pattern recognition.

The K(1), K(2+), K(3) and K(4+) resonance parameters and production cross sections are determined. The Kπ production amplitudes are calculated both as a function of the Kπ mass and of the momentum transfer. Isoscalar natural parity exchange (NPE) is dominant. The NPE amplitudes are decomposed into pomeron- f-, ω-exchange contributions, and their energy dependence between 10 and 50 GeV/c is shown to be well-described by a Regge pole model based on the f-dominated pomeron hypothesis.

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