6th COMPASS "Analysis Phase" international mini-workshop (COMAP-2024 VI)

Wednesday 24 Jan 2024, 13:30 → 19:35 Europe/Zurich

892/1-D20 (CERN)

Bakur Parsamyan (AANL, Turin section of INFN and CERN), Fulvio Tessarotto (Universita e INFN Trieste (IT)), Jan Matousek (Charles University (CZ)), Mikhail Mikhasenko (Excellence Cluster ORIGINS), Stefan Wallner (Max Planck Institute for Physics)

6th COMPASS "Analysis Phase" international mini-workshop will take place on November 22nd, 2023 at CERN in Geneva, Switzerland.
The workshop will be held in a hybrid mode.

The scientific programme of the series of COMPASS "Analysis Phase" mini-workshops is focused on the topics traditionally addressed by the COMPASS collaboration:

• Spin and 3D Structure Structure of the Nucleon
• DIS, SIDIS, DVCS, DVMP, Drell-Yan measurements
• TMDs, GPDs and GTMDs
• Fragmentation Functions
• Meson Structure and Spectroscopy
• Search for Exotics
• Monte-Carlo simulation tools and techniques
• Technical aspects and analysis techniques

1 Recent Updates from the JAM Collaboration on Helicity PDFs

Speaker: Christopher Cocuzza

COMAP2024.pdf

2 Spin observables in Deep Processes with CLAS12 at JLab

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.

Speaker: Gregory Matousek (Duke University - Durham, NC)

Matousek_COMAP2024.pdf

3 Measurement of longitudinal spin asymmetries at COMPASS

Speaker: Dr Bakur Parsamyan (AANL, Turin section of INFN and CERN)

Parsamyan_20240124_COMAP_SIDIS-L.pdf

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

Speaker: Dr Yoshitaka Hatta (BNL)

Compass.pdf

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

Speaker: Dr Francesco Giovanni Celiberto (UAH Madrid)

talk_COMPASS_2024_01_24_Celiberto_T-odd_gluon_TMDs.pdf

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

Speaker: Dr Bakur Parsamyan (AANL, Turin section of INFN and CERN)

Parsamyan_20240124_COMAP_DY_Jpsi.pdf