Oak Ridge National Laboratory

Physics Division

Physics Division Seminars

Physics Division Seminars bring us speakers on a variety of physics related subjects. Usually these are held in the Building 6008 large Conference Room, at 3:00 pm on the chosen day, but times and locations may vary. For more information, contact our seminar chairman,

Alfredo Galindo-Uribarri
Tel (Office): (865) 574-6124  (FAX): (865) 574-1268

Tue., June 08, 2004, at 3:00 p.m.

Physics and Status of the GlueX/Hall D Project at JLAB

Alex R. Dzierba, Indiana University, Bloomington, IN
6008 Conference Room

A mapping of the spectrum of gluonic excitations is critical for a quantitative understanding of the confinement of quarks and gluons in QCD and is the goal of a new detector planned for the energy-upgraded CEBAF accelerator at Jefferson Lab. The GlueX experiment will use a 9-GeV beam of linearly polarized photons produced from 12-GeV electrons by coherent bremsstrahlung as the probe. Model calculations based on flux-tubes and other phenomenological analyses indicate that the yield of exotic hybrid mesons (the smoking gun signature of gluonic excitations) relative to conventional mesons should be comparable in photoproduction whereaas the exotics are suppressed with pion probes. The physics, technique and status of the GlueX project will be discussed. The CD-0 for the JLab upgrade, that includes GlueX, was recently signed by the DOE. More information is available on http://www.gluex.org

host: Ted Barnes