A study of the reactions K+p[arrow]K-K+K+p and K+p[arrow] ppK+p at 13 GeV/c /

McFadzean, Douglas McLeod (1983) A study of the reactions K+p[arrow]K-K+K+p and K+p[arrow] ppK+p at 13 GeV/c /. PhD thesis, University of Glasgow.

Abstract

Results are presented from a study of the reactions and K+p → K-K+K+p and K+p → ppK+p at an incident beam momentum of 13 Gev. Using date recoded at the CERN Omega spectrometer. The data samples studied represent a significant improvement on existing statistics. A description is given of the experimental apparatus, the electronic trigger system an and the data acquisition process. Event reconstruction and the selection of three and four-prong events in the reactions of interest are also discussed. After considering the geometrical acceptance of the spectrometer, a method of event simulation is adopted. Factors which account for various types of data losses are determined. The production and decay characteristics of the Λ(1520) resonance are investigated in the reaction K+p → ppK+p. No narrow states are seen in pp or &phis;(1520)p. (1020) and f'(1515) production is studied in the reaction K+p → ppK+p. A possible &phis;-like resonance is observed at K-K+ Assuming diffractive production and t-channel helicity conservation, a spin-parity analysis of the &phis;K+ system shows a dominance of unnatural parity states, and in particular, dominance of the JP= 1+ wave. Evidence is presented for the existence of a 2- resounance, possibly an L meson, at a mass of ~1.8 Gev. Small S and P-wave interference effects are observed in the K-K+ system.

• Item Type: Thesis (PhD)
• Qualification Level: Doctoral
• Subjects: Q Science > QC Physics
• Colleges/Schools: College of Science and Engineering > School of Physics and Astronomy
• Supervisor's Name: Gunn, Prof. Sir J.C.
• Date of Award: 1983
• Depositing User: Enlighten Team
• Unique ID: glathesis:1983-84763
• Copyright: Copyright of this thesis is held by the author.
• Date Deposited: 13 Nov 2024 08:50
• Last Modified: 13 Nov 2024 10:55
• Thesis DOI: 10.5525/gla.thesis.84763
• URI: https://theses.gla.ac.uk/id/eprint/84763