CaltechTHESIS
  A Caltech Library Service

The decay properties of the ψ(3770)

Citation

Zhu, Yanong (1989) The decay properties of the ψ(3770). Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/2c5y-sq13. https://resolver.caltech.edu/CaltechTHESIS:10252013-112507352

Abstract

The decays of the ψ(3770) resonance to final states that do not contain charmed D mesons are measured for the first time. Using a sample of 9.3pb ^(-1) of e^+e^- annihilations at √s = 3.77 GeV, collected with the Mark III detector at SPEAR, we have measured the branching ratio for the decays ψ(3770) → J/ψπ^(+)π^(-) and γχ_j. These branching ratios together with the electronic widths of the ψ(3685) and ψ(3770) are used to determine the mixing angle between the 2^(3)S_1 and 1^(3)D_1 Charmonium states and are compared with a number of predictions. In addition, evidence is found for other non-DD hadronic final states, such as 3π, 4π, and 5π, as well as η2π, η4π, pp2π and pp3π.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:Physics
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Physics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Hitlin, David G.
Thesis Committee:
  • Unknown, Unknown
Defense Date:19 July 1988
Record Number:CaltechTHESIS:10252013-112507352
Persistent URL:https://resolver.caltech.edu/CaltechTHESIS:10252013-112507352
DOI:10.7907/2c5y-sq13
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8010
Collection:CaltechTHESIS
Deposited By: Dan Anguka
Deposited On:25 Oct 2013 21:24
Last Modified:23 Apr 2021 00:07

Thesis Files

[img]
Preview
PDF - Final Version
See Usage Policy.

21MB

Repository Staff Only: item control page