This thesis presents the measurement of Ξ¯ and Σ(1385) strange baryons in deep inelastic scattering of 27.5 GeV positrons on 920 GeV protons with the ZEUS detector at HERA in the 1999--2000 run period. The kinematic range 20 < Q2 < 200 GeV 2, 0.0003 < x < 0.02, 0.04 < y < 0.7, and restricted kinematic regions in momentum pT and pseudorapidity eta for Ξ¯ and Σ, are used. This data set is suitable for the study of the strange content of the sea quarks inside the proton as well as the parton fragmentation process. The measured total cross sections of Ξ¯ and Σ(1385) baryons are compared with various Monte Carlo results generated with different strangeness suppression factors, and with a previous analysis which covered the 1997--2000 run period. The differential cross sections in bins of Q2, x, pT and η are also measured.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.80309 |
| Date | January 2003 |
| Creators | Lainesse, Julie |
| Contributors | Corriveau, Francois (advisor) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Science (Department of Physics.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 002131363, proquestno: AAIMQ98678, Theses scanned by UMI/ProQuest. |
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