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Upper limits on neutral associated photoproduction cross sections


Coyne, Donald Gerald (1967) Upper limits on neutral associated photoproduction cross sections. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/15Q5-M466.


A search for events of the type γ + n → K[superscript o] + Λ[superscript 0] or γ + n → K[superscript 0] + Σ[superscript 0] has been made. Photon energies up to 1530 MeV were available. The technique used was to observe the region near the interaction point using a heavy liquid bubble chamber, with the liquid surrounding a central tube containing deuterium gas. About 14,000 pictures were multiply scanned and analyzed by techniques developed especially for these reactions. The most probable conclusion is that no events of the above types were seen. The meaning of this result in terms of limits on the average cross sections for those interactions is given, and the significance of the result with respect to previously published theories and experiments is discussed.

Item Type:Thesis (Dissertation (Ph.D.))
Degree Grantor:California Institute of Technology
Major Option:Physics
Thesis Availability:Public (worldwide access)
Thesis Committee:
  • Mullins, Joe Hill (chair)
Defense Date:4 October 1966
Record Number:CaltechETD:etd-02172009-132021
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:668
Deposited By: Imported from ETD-db
Deposited On:17 Feb 2009
Last Modified:21 Dec 2019 03:00

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PDF (Coyne_dg_1967.pdf) - Final Version
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