Hall C Winter Collaboration Meeting

Jan 13, 2025, 8:00 AM → Jan 14, 2025, 5:25 PM US/Eastern

F113 (CEBAF Center )

Carlos Yero (Thomas Jefferson National Accelerator Facility), Dipangkar Dutta (Mississippi State University), Garth Huber (University of Regina), Maria Niculescu (James Madison University), Marie BOER (Virginia Tech), Stephen Kay (University of York)

Bishof_JLAB_abstract_Jan_2025.pdf

Mon, January 13

8:30 AM → 10:30 AM Introductory Session: Session 1

Convener: Ioana Niculescu (James Madison University)

8:30 AM Jefferson Lab Director (welcome to Hall C and vision for the lab)

Speaker: David Dean

9:00 AM Hall C Status and Upcoming Experiments

Speaker: Mark Jones

Hall C Collaboration MKJ Winter 2025.pdf

Hall C Collaboration MKJ Winter 2025.pptx

9:30 AM Beam/Accelerator updates (high current running, summer running)

Speaker: Jay Benesch (JLab)

HallC_Jan2025_Benesch_final_corr.pdf

HallC_Jan2025_Benesch_final.pdf

10:00 AM Hall C Working groups

SpecWG_SKay.pdf

10:30 AM → 11:00 AM coffee break / group photo

11:00 AM → 12:00 PM JLab Seminar: Using quantum hardware to explore nuclear physics (Michael Bishof, ANL)

Strongly interacting many-body quantum systems are computationally inefficient to model due to the exponential scaling of resources required with system size and QCD is no exception. The fermionic sign problem and a non-trivial interplay of dynamics at different energy scales make calculations at finite density and real-time dynamical phenomena intractable for even today’s exa-scale computers. Quantum computers present an opportunity to address classically intractable problems by leveraging state-superposition and entanglement to achieve information densities that scale exponentially with system size. However, achieving a large-scale, fault-tolerant, universal quantum computer remains challenging with today’s state-of-the-art quantum hardware. Quantum simulation offers an alternative approach to gaining insight into classically intractable theories by pairing precise (though imperfect) control of a quantum system with aspects of the system’s natural behavior. In this talk, I will review leading quantum hardware platforms with an emphasis on how they have been applied to calculations in nuclear physics. I will also report on our progress developing and co-designing a quantum simulation platform that is tailored to address non-perturbative phenomena in QCD. Our work builds upon recent advances in the manipulation of neutral atoms trapped in optical tweezer arrays.

Convener: Dipangkar Dutta

Bishof_JLAB_abstract_Jan_2025.pdf

11:00 AM Using quantum hardware to explore nuclear physics

Strongly interacting many-body quantum systems are computationally inefficient to model due to the exponential scaling of resources required with system size and QCD is no exception. The fermionic sign problem and a non-trivial interplay of dynamics at different energy scales make calculations at finite density and real-time dynamical phenomena intractable for even today’s exa-scale computers. Quantum computers present an opportunity to address classically intractable problems by leveraging state-superposition and entanglement to achieve information densities that scale exponentially with system size. However, achieving a large-scale, fault-tolerant, universal quantum computer remains challenging with today’s state-of-the-art quantum hardware. Quantum simulation offers an alternative approach to gaining insight into classically intractable theories by pairing precise (though imperfect) control of a quantum system with aspects of the system’s natural behavior. In this talk, I will review leading quantum hardware platforms with an emphasis on how they have been applied to calculations in nuclear physics. I will also report on our progress developing and co-designing a quantum simulation platform that is tailored to address non-perturbative phenomena in QCD. Our work builds upon recent advances in the manipulation of neutral atoms trapped in optical tweezer arrays.

Speaker: Michael Bishof (Argonne National Lab)

12:00 PM → 1:30 PM Lunch Break

1:30 PM → 1:50 PM Safety requirements for Users

HallC_collab_safety_mkj.pdf

1:50 PM → 3:25 PM NPS Experiment

Convener: Carlos Yero

1:50 PM NPS Overview: RG1A Run

Speaker: Casey Morean (Catholic University of America)

NPS RG1-a Overview.pdf

2:15 PM Exclusive Physics Talk I

Speaker: Christine Ploen (Old Dominion University)

ploen_01132025_HallCNPSExcl1.pdf

2:30 PM NPS RG1a: Validating Luminosity and HMS Acceptance via Analysis of DIS Yield

Speaker: Mark Mathison (Ohio University)

Hall C Winter Meeting 2025 - DIS and Target Studies.pdf

2:45 PM SIDIS and Pi-0 Talk

Speakers: Avnish SIngh, Joshua Crafts

SIDIS_Pi0_Physics_for_NPS_V4.pdf

3:00 PM Future NPS Science Talk

Speaker: Tanja Horn (Catholic University of America)

HallC-Users-Meeting-2025-NPS-Horn.pdf

3:25 PM → 3:40 PM coffee break

3:40 PM → 5:10 PM KaonLT/PionLT Results Nearing Publication

Convener: Garth Huber

3:40 PM Axial Vector Form Factor

Speaker: Jim Napolitano (Temple University)

Napolitano Hall C 13 Jan 2025.pdf

3:55 PM Low Q2 pi+ L/T-separated data

Speaker: Vijay Kumar (University of Regina)

Vijay_HallCW_2025_Meeting.pdf

4:20 PM K+ L/T-separated data

Speaker: Richard Trotta (University of Virginia/CUA)

KaonLT_trotta_HallC2025winter.pdf

4:45 PM Pi+Delta0 beam spin asymmetries

Speaker: Ali Usman (University of Regina)

Usman_piDelta_25jan.pdf

5:30 PM → 7:00 PM Social gathering at Tradition Brewing

Address is 700 Thimble Shoals Blvd Newport News, VA 23606

Tue, January 14

8:50 AM → 10:40 AM Current and Upcoming Experiments: Ideas for future experiments

Convener: Marie BOER (Virginia Tech)

8:50 AM Exclusive Electro-Disintegration of Tensor-polarized Deuterium

The deuteron, the most fundamental nuclear system, has a wave function predominantly characterized by the proton-neutron ($pn$) component. As such, it serves as a valuable tool for probing various aspects of the $pn$ strong interaction. Studying the $pn$ system at short distances addresses fundamental questions in nuclear dynamics, such as the relativistic description of nuclear structure, the dynamics of the repulsive core in nucleon-nucleon ($NN$) interactions, the role of non-nucleonic degrees of freedom, and the transitions between hadrons and quarks at very short distances. Utilizing a tensor-polarized deuteron target in electro-production reactions opens up new possibilities for exploring phenomena in short-range hadronic and nuclear physics. Additionally, $pn$ potentials like AV18 and CD-Bonn show significant differences in their high-momentum projections, which correspond to small inter-nucleon distances. Theoretical studies suggest that these differences could be identified and measured through specialized electro-disintegration experiments involving a tensor-polarized target.

Speaker: Carlos Yero (Thomas Jefferson National Accelerator Facility)

hallc_jan2025_cyero.pdf

9:05 AM Final-State Interactions Studies in Deuterium at Very High Missing Momenta

Speaker: Carlos Yero (Thomas Jefferson National Accelerator Facility)

9:20 AM Spin-1 TMDs and Structure Functions of the Deuteron

Speaker: David Ruth (University of New Hampshire)

HallCTensorSIDIS_Winter2025Meeting_final.pdf

HallCTensorSIDIS_Winter2025Meeting_final.pptx

9:35 AM GMn measurement at Q2=18 GeV2

The recently conducted JLab Hall A experiment E12-09-019, using the SBS spectrometer, measured the GMn nucleon Form Factor for momentum transfers up to 13.5 GeV^2. A combination of GMn and GMp data at such high Q^2 will allow us to do a flavor decomposition of the Dirac nucleon form factor F1 and extract the ratio F1_d / F1_u, which was surprisingly predicted to be close to zero in some models. The SBS apparatus allows us to get data for even high momentum transfer, up to 18 GeV^2. We are planning to submit at experiment to the upcoming JLab PAC in 2025 to perform such a measurement for GMn, using the SBS spectrometer in the Hall C at JLab.

Speaker: Mahmoud Gomina (Virginia Tech)

GMn 16 and 18 Q^2.pdf

9:50 AM Polarized and unpolarized Timelike Compton Scattering

Speaker: Alexandre Camsonne (Jefferson Laboratory)

TCS_Camsonne.pdf

10:05 AM Double Deeply Virtual Compton Scattering in Hall C with new muon detector

DDVCS corresponds to the scattering of a spacelike photon at high virtuality off a quark, followed by the emission of a timelike photon, and can be parametrized by the so-called GPDs, accessing transverse positions versus longituninal momenta of partons. We recently proposed to extend the setup intended to measure unpolarized TCS in Hall C with the addition of a new muon detector. GPDs can lead to interpretation such as tomographic views of the nucleon's content, however, this is assuming we can decorrelate it's kinematic variable dependencies to relate it to actual measurements which is possible by measuring some specific kinematics in the DDVCS+BH reaction.

Speaker: Debaditya Biswas (Virginia Tech)

HallC_collab_biswas.pdf

10:20 AM New ideas / flash talks and discussions

Flash talks: 1) Proton elastic L/T at 10 GeV^2 (Bogdan W), 2)
DIS in D(e, e' n_s) for a slow spectator neutron (Bogdan W), 3) Alexandre Camsonne, 4) Simonetta Liuti, 5) Exclusive phi meson production (Kemal Tezgin)

BW-flash-talks.pdf

Hall_C_Winter_Meeting.pdf

liuti_Flash_jlab.pptx

PVDIS_HallC_parasitic.pdf

10:40 AM → 10:55 AM coffee break

10:55 AM → 12:10 PM SIDIS Rungroup Analysis Updates

Convener: Dipangkar Dutta (Mississippi State University)

10:55 AM CSV Update

Speaker: Whitney Armstrong (Argonne National Laboratory)

2025_HallC_CSV_update.pdf

11:20 AM SIDIS Proton Analysis

Speaker: Hem Bhatt (Mississippi State University)

HemBhatt_HallCWinter_2025.pdf

11:45 AM Pt SIDIS Update

Speaker: Edward Kinney (University of Colorado)

Kinney-ptsidis-jan2025.pdf

12:10 PM → 1:20 PM Lunch Break

1:20 PM → 3:00 PM Analysis Updates

Convener: Ioana Niculescu

1:20 PM CaFe Experiment

Speaker: Noah Swan (Old Dominion University)

Swan_JLab Collab-2.pdf

1:45 PM x>1 Experiment

Speaker: Jordan O'Kronely

HallC25_SRC.pdf

2:10 PM EMC effect Experiment

Speaker: Tyler Hague

XEM_EMC_Update.pdf

2:35 PM The Deuteron Experiment

Speakers: Gema Villegas Minyety (Florida International University), Pramila Pokhrel (Catholic University of America)

Deep_HallCcollabMeet_Jan2025.pdf

Deep_HallCcollabMeet_Jan2025.pptx

3:00 PM → 3:20 PM Coffee break

3:20 PM → 5:00 PM Current and Upcoming Experiments

Convener: Stephen Kay

3:20 PM R SIDIS

Speaker: Edward Kinney (University of Colorado)

Kinney-RSIDIS-Jan25.pdf

3:45 PM Tagged DIS Measurement with LAD

Speaker: Lucas Ehinger (MIT)

HallC_Winter 2025_Ehinger_Lucas_Final.pdf

4:10 PM Pion CT

Speaker: Carlos Ayerbe Gayoso (Old Dominion University)

C.Ayerbe-PionCT-20250114.pdf

4:35 PM Hypernuclear

Speaker: Liguang Tang (Hampton University/JLab)