The coupling of primitive qq meson states to four-quark qq qq states is investigated. The basic mechanism is the production of a massive quark-antiquark pair. The Feynman diagram for this process is considered and, with suitable approximations, this diagram yields a coupling operator. The heavy meson systems cc and bb are treated in some detail. Energy shifts for the first three J('P) = 1('-) states in charmonium are found to be in the range 50-80 MeV. The calculated width of the state (psi)'' is 14 MeV. The decay (psi)'(--->)(psi)(eta) is treated as a two-stage process of pair production followed by quark exchange and a width of 1.6 keV is obtained. An attempt is made to study the lighter meson systems ss and nn. Using a coupling operator similar to that used for the heavy mesons, the widths of the (phi) and (rho) mesons are determined to within an order of magnitude. / Source: Dissertation Abstracts International, Volume: 45-09, Section: B, page: 2963. / Thesis (Ph.D.)--The Florida State University, 1984.
| Identifer | oai:union.ndltd.org:fsu.edu/oai:fsu.digital.flvc.org:fsu_75418 |
| Contributors | JARONSKI, WALTER S., Florida State University |
| Source Sets | Florida State University |
| Detected Language | English |
| Type | Text |
| Format | 135 p. |
| Rights | On campus use only. |
| Relation | Dissertation Abstracts International |
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