Recent Updates from the JAM Collaboration on Helicity PDFs

• Christopher Cocuzza

Room: 892/1-D20

Spin observables in Deep Processes with CLAS12 at JLab

• Gregory Matousek (Duke University - Durham, NC)

Room: 892/1-D20 Run Group C (RGC) is a series of Electron-nucleon scattering experiments sensitive to target- and double-spin observables. It has been recently performed with the CLAS12 spectrometer in Hall B at Jefferson Lab. The experiments scattered highly polarized 11 GeV electrons by longitudinally polarized proton/neutron targets, a first with the newly upgraded CLAS12. In this presentation, we overview the physics program of the experiment, the experimental setup, and the data collection/processing timeline. We also report on several ongoing analyses: single- and double-spin asymmetries in Deeply Virtual and Timelike Compton Scattering (DVCS and TCS) as well as Semi-Inclusive (SIDIS) and Inclusive (DIS) scattering on the proton and the deuteron/neutron.

Measurement of longitudinal spin asymmetries at COMPASS

• Bakur Parsamyan (AANL, Turin section of INFN and CERN)

Room: 892/1-D20

Semi-inclusive diffractive DIS (SIDDIS) at small-x

• Yoshitaka Hatta (BNL)

Room: 892/1-D20

Proton 3D reconstruction with time-reversal odd TMD gluon densities

• Francesco Giovanni Celiberto (UAH Madrid)

Room: 892/1-D20

Measurement of J/ψ transverse spin asymmetries in pion-nucleon scattering at COMPASS

• Bakur Parsamyan (AANL, Turin section of INFN and CERN)

Room: 892/1-D20