GlueX overview: status and some future plans

Abstract

Abstract. The GlueX experiment at Thomas Jefferson National Accelerator Facility (Jefferson Lab) has started data taking in late 2014 with its first commissioning beam. All of the detector systems are now performing at or near design specifications and events are being fully reconstructed. Linearly-polarized photons were successfully produced through coherent bremsstrahlung. An upgrade of the particle identification (PID) system with a GlueX DIRC detector, planned for 2018, will allow identification of final state kaons. The construction of the GlueX DIRC has already started. One of the plans for GlueX is to study properties of short-range correlations (SRC) in nuclei, which will shed new light on the quark-gluon structure of bound nucleons.

Photoproduction of K+K− meson pairs on the proton

“…near single meson production thresholds, high quality data have been accumulated by the CB-ELSA [1] and CB-MAMI [2] experiments, while at higher energies, photoproduction data have come from the CLAS [3] experiment at Jefferson Lab. Moreover, two new programs, GLUEX [4] and MesonEx [5] have just been launched in the same laboratory. A typical meson photoproduction data set from past experiments in the energy range below 20 GeV, typical for meson spectroscopy, has tens of thousands of events, and only a few topologies have been studied [6][7][8].…”