Speaker
Description
This talk will discuss upcoming tagged deep inelastic scattering (TDIS) measurements at Jefferson Lab, which will directly probe the elusive mesonic content of the nucleon. The TDIS experiment will measure low momentum recoiling (and spectator) hadrons in coincidence with deep inelastically scattered electrons from hydrogen (and deuterium) targets. The recently commissioned Super Bigbite Spectrometer, a large acceptance detector package, will be used to detect the electrons. For hadron detection, a novel multiple time projection chamber (mTPC) is being developed. This innovative mTPC will be a high-rate capable device optimized for measuring protons and pions spanning momenta of 60-400MeV/c. Through use of the mTPC, a tagging technique will enhance deep inelastic scattering from partons in the meson cloud and provide access to the pion and kaon structure functions. Existing world data on light meson structure is extremely sparse and the TDIS measurements will be crucial for shedding light on topics such as emergent hadron mass. An overview of the measurements, setup, current status, projected results and future extensions of the measurements will be given.
