The Meson Spectroscopy Program Using the Forward Tagger with CLAS12 at Jefferson Lab

Conference · Sat Nov 01 00:00:00 EDT 2014 · EPJ Web of Conferences

DOI:https://doi.org/10.1051/epjconf/20148105011· OSTI ID:1168417

Fegan, Stuart ^[1]

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1. INFN-GENOVA

The 12 GeV upgrade to the Continuous Electron Beam Accelerator Facility (CEBAF) will enable a new generation of experiments in hadronic nuclear physics at Jefferson Lab, seeking to address fundamental questions in QCD. For example, confirming the existence of exotic states, suggested by both quark models and lattice calculations, would allow gluonic degrees of freedom to be explored, and may help explain the role played by gluons in the QCD interaction. In Experimental Hall B, meson spectroscopy (the MesonEx experiment) will be performed using low Q2 electron scattering to produce quasi-real photons. The scattered electron is detected at small angles by the Forward Tagger device, determining the properties of the photon on an event-by-event basis. This technique has notable advantages over real photon beams, and over hadronic beam experiments, where most experimental data exists. This article will focus on the development of the Forward Tagger by the INFN Genova group, and the proposed MesonEx experiment.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1168417
• Report Number(s): JLAB-PHY-14-1982; DOE/OR/23177-3273
• Journal Information: EPJ Web of Conferences, Journal Name: EPJ Web of Conferences Vol. 81
• Country of Publication: United States
• Language: English