Degree Type

Dissertation

Date of Award

1989

Degree Name

Doctor of Philosophy

Department

Physics and Astronomy

First Advisor

Alexander Firestone

Abstract

Data are presented for the first time on exclusive Pomeron-Pomeron interactions which produce a neutral strange and neutral antistrange particle pair in a central system X. In this paper, the system, X, is identified as one of the following neutral combinations; K[subscript]sps0K[subscript]sps0, K[subscript]sps0K[superscript]±[pi][superscript][minus or plus], [lambda][superscript]0[macron][lambda][superscript]0, [lambda][superscript]0[macron][lambda][superscript]0*. These data were obtained in proton-proton collisions at √s = 62 GeV at the CERN ISR. The triggering systems used to obtain these data are described, followed by a description of the data. The central system mass distributions are presented along with differential mass cross section estimates. A broad enhancement is seen in the K[subscript]sps0K[subscript]sps0 system at a mass of 1.2 GeV, and is likely to have the quantum numbers J[superscript]PC = 0[superscript]++. Total cross section estimates of 1.3 ±.64 [mu] b in the K[subscript]sps0K[subscript]sps0 system,.44 ±.14 [mu] b in the K[subscript]sps0K[superscript]±[pi][superscript][minus or plus] system,.20 ±.14 [mu] b in the [lambda][superscript]0[macron][lambda][superscript]0 system, and.13 ±.06 [mu] b in the [lambda][superscript]0[macron][lambda][superscript]0* system are obtained.

DOI

https://doi.org/10.31274/rtd-180813-13059

Publisher

Digital Repository @ Iowa State University, http://lib.dr.iastate.edu/

Copyright Owner

John Donovan Skeens

Language

en

Proquest ID

AAI9014954

File Format

application/pdf

File Size

171 pages

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