J-FUTURE

Session

Physics

Mar 28, 2022, 2:00 PM

Jefferson Lab / Messina University

1. The Jefferson Lab of the Future

Patrizia Rossi (JEFFERSON LAB)

3/28/22, 2:00 PM

29. Nucleon-structure studies with exclusive reactions at a future upgraded JLab

Silvia Niccolai (IJCLab Orsay)

3/28/22, 2:30 PM

Understanding the multi-dimensional partonic structure of the nucleon via the measurement of Generalized Parton Distribution (GPDs) is one of the central goals of the scientific program of Jefferson Lab. While the 12-GeV program progresses, various upgrade scenarios open up perspectives to expand the measurable observables for Deeply Virtual Compton Scattering (DVCS) and other exclusive...

40. Theory of deeply virtual exclusive processes

Simonetta Liuti

3/28/22, 3:00 PM

I will review the status of current theoretical progress on deeply virtual exclusive processes and of the extraction of observable from experiment.

23. Opportunities for semi-inclusive studies at high-energy (theory)

Andrea Signori (University of Pavia and Jefferson Lab)

3/28/22, 4:00 PM

In this talk I will briefly review where we stand with hadron structure and hadronization studies with semi-inclusive processes, in particular SIDIS.
I will also highlight the fundamental role of the present and future experimental facilities for the advancement of the field.

37. Opportunities for semi-inclusive studies at high-energy (experiment)

Harut Avagyan (Jefferson Lab)

3/28/22, 4:30 PM

The quark-gluon dynamics manifests itself in a set of non-perturbative functions describing all possible spin-spin and spin-orbit correlations. Recent studies of correlated hadron pairs, including the pairs created in target and current fragmentation region, indicate significant correlations in hadron fragmentation process. Their understanding is becoming increasingly important in the...

8. Spectroscopy (theory)

Vincent Mathieu (JLab)

3/29/22, 2:00 PM

36. Spectroscopy (experiment)

Derek Glazier (University of Glasgow)

3/29/22, 2:30 PM

Upgrading the energy of CEBAF would open the door for many important spectroscopy measurements. In particular the recently discovered and apparently exotic states collectively know as $XYZ$ mesons will become accessible. This presentations uses models constructed by the JPAC collaboration to estimate rates and kinematics for some key reactions. Although the production mechanism modeled is via...

39. Opportunities beyond hadron physics: the physics case

Luca Marsicano (INFN Genova)

3/29/22, 3:00 PM

Although its main focus is hadron physics, Jefferson Lab (JLab) features a significant experimental program dedicated to beyond Standard Model (BSM) physics, including the search for new light particles possibly explaining the Dark Matter problem. Experiments such as APEX,HPS and BDX-mini, aim to exploit CEBAF unique capabilities to produce and detect Dark Photons, hypothetical bosons acting...

27. Prospects of testing electroweak physics using a positron beam at Jefferson Lab

Xiaochao Zheng

3/29/22, 3:30 PM

Electron scattering has provided some of the cornerstone experiments for the establishment of the electroweak (EW) sector of the Standard Model, in particular in its neutral-current (NC) sector. With the addition of a positron beam, one could expand such studies but in order to maximize the physics impact, our focus is not to measure the charge-counterpart observables as for electron...

34. u-Channel Physics Observables at Future CLAS

Wenliang Li (William & Mary)

3/29/22, 4:00 PM

The recent measurements on exclusive backward-angle electroproduction of mesons from Jefferson Lab electron-proton fixed-target scattering experiments above the resonance region, hint on a new domain of applicability of QCD collinear factorization framework in the special u-channel kinematics regime. Within this kinematics, the collinear factorized description of hard exclusive meson...

22. Positrons at Jefferson Lab and the Goal of Understanding Two Photon Exchange

Axel Schmidt (George Washington University)

3/30/22, 2:00 PM

Two-photon exchange (TPE), a small contribution to electron scattering amplitudes, can occasionally, if not properly accounted for, have a big impact. For example, neglected TPE corrections may be the cause of the significant discrepancy between polarization-transfer and Rosenbluth-separation determinations of the proton's form factors at large momentum transfer. Though theoretical...

15. Probing the partonic structure of nuclei and bound nucleons

Or Hen (MIT)

3/30/22, 2:30 PM

Physics possibilities at JLab and its complementarity with the EIC

33. Spin at high-x

Sebastian Kuhn (Old Dominion University)

3/30/22, 3:00 PM

Nucleon valence quark structure at very high values of the scaling variable $x$ is sensitive to the mechanism of SU(6) breaking. In particular the valence quark polarizations $\Delta u/u$ and $\Delta d/d$ can be predicted by quark models, perturbative QCD, and other approaches, with significantly different expected
results. Present data are not sufficiently precise in the high-$x$ region to...

19. The MARATHON experiment with a 24 GeV JLab beam

Gerassimos Petratos

3/30/22, 3:30 PM

The possibility of extending the measurements of the Jefferson Lab (JLab) MARATHON experiment to higher values of the squared four-momentum transfer $Q^2$ and of the Bjorken scaling variable x will be presented. The first part of the presentation will summarize results from the MARATHON experiment based on data from electron deep inelastic scattering from the tritium and helium-3 mirror...

16. The psi' with SOLID

Sylvester Joosten (Argonne National Laboratory)

3/30/22, 4:30 PM