Upcoming Events

Physics Program at Jefferson Lab Hall-D

August 28, 2013 11:00AM to 12:00PM
Presenter 
Yi Qiang, Jefferson Lab
Location 
Building 362, Room F108
Type 
Seminar
Series 
Abtract:
As part of Jefferson Lab’s 12 GeV upgrade, the new experimental Hall-D is currently under construction. Hall-D will use the electron beam to produce a linearly polarized bremsstrahlung photon beam and house a solenoid-based hermetic detector. By using such a setup, Hall-D’s flagship GlueX experiment [1] will be able to provide critical photoproduction data to help understand the soft gluonic field responsible for binding quarks in hadrons.

Hybrid mesons, and in particular exotic hybrid mesons, provide the ideal laboratory for testing QCD in the confinement regime since these mesons explicitly manifest the gluonic degrees of freedom. Photoproduction is expected to be particularly effective in producing exotic hybrids but there is little data on the photoproduction of light mesons. This talk will give an update on Hall-D’s detector construction status, describe the latest theoretical developments to help understand how the data of hybrid mesons can provide insights into the fundamental theory of strong interactions. Some highlights of other future Hall-D and JLab projects will be presented as well.

References:
[1] JLab Experiment E12-06-102, Mapping the Spectrum of Light Quark Mesons and Gluonic Excitations with Linearly Polarized Photons: https://www.jlab.org/exp_prog/prpposals/06/PR12-06-102.pdf.