The photoproduction of possible hybrid mesons at =110 GEV

Author

Kathleen Danyo Blackett

Date of Award

8-1995

Degree Type

Dissertation

Degree Name

Doctor of Philosophy

Major

Physics

Major Professor

George T. Condo

Committee Members

David Dobbs, Ted Barnes, Bill Bugg

Abstract

The search for exotic resonances is one of the most active areas in light meson spectroscopy at the present time. From a study of high energy photoproduction on experiment E687 at Fermi National Accelerator Laboratory, two candidates for hybrid states are observed. The first is a state with a decay into ƒ₁(1285)π which has a mass of 1748 ± 12 MeV and a width of 136 ± 30 MeV, whose decay angular distributions suggest the true exotic quantum numbers J^PC = 1^-+. The second is a state of mass 1914±33 MeV and width 389±115 MeV, produced with almost no background, which decays to Φη and whose angular distributions indicate J^PC = ^--. Close and Page predict the existence of a hybrid vector meson that decays to Φη. However their theoretical width is much less than our experimental value.

Recommended Citation

Blackett, Kathleen Danyo, "The photoproduction of possible hybrid mesons at =110 GEV. " PhD diss., University of Tennessee, 1995.
https://trace.tennessee.edu/utk_graddiss/9928