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A cloud-chamber investigation of charged V particles

Citation

Trilling, George Henry (1955) A cloud-chamber investigation of charged V particles. Dissertation (Ph.D.), California Institute of Technology. http://resolver.caltech.edu/CaltechETD:etd-08032004-143918

Abstract

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An analysis of 84 charged V events obtained during two years of operation of a vertical magnetic cloud-chamber array is presented. The particular features of interest which are studied in detail are the distribution of P*, the momentum of [...] charged secondary in the rest system of the primary, and the possible existence of a component of short lifetime (i.e., [...]). The P* distribution from 19 slow, accurately measurable positive events is shown to imply that the large majority of these events arise from one or more two-body decays from primaries of mass approximately equal to that of the [...] meson. One case turns out to be inconsistent with this interpretation, and is presumed to represent a three-body decay.

The P* distribution from six slow, accurately measurable negative events is consistent with a single two-body decay having a P* value of about 200 Mev/c. This suggests the existence of a negative counterpart to the well-known [...] particle, though the statistics are much too poor to permit any strong conclusion.

The lifetime analysis provides strong evidence for the existence of a negative component of lifetime equal to or less than (1.3[plus or minus]0.6) x [...]second. The transverse momentum distribution for these short lived events is shown to suggest a two-body decay with a P* value of 201[plus or minus]12 Mev/c.

Item Type:Thesis (Dissertation (Ph.D.))
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Physics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Anderson, Carl D.
Thesis Committee:
  • Anderson, Carl D. (chair)
  • Leighton, Robert B.
  • Cowan, Eugene W.
Defense Date:1 January 1955
Record Number:CaltechETD:etd-08032004-143918
Persistent URL:http://resolver.caltech.edu/CaltechETD:etd-08032004-143918
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3000
Collection:CaltechTHESIS
Deposited By: Imported from ETD-db
Deposited On:09 Aug 2004
Last Modified:26 Dec 2012 02:56

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