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Exploring QCD with light nuclei at EIC

US/Eastern
SBU Physics Building C-120

SBU Physics Building C-120

Stony Brook University Stony Brook, NY 11794
Abhay Deshpande (Stony Brook University) , Christian Weiss (Jefferson Lab) , Maria Patsyuk, Mark Strikman, Misak Sargsian (Florida International University) , Raphael Dupre (IPN Orsay)
Description
The EIC will enable a novel program of high-energy electron scattering on light nuclei (deuteron D, 3He, 4He, ...) using unpolarized and polarized beams. Such measurements address fundamental questions of nuclear physics and QCD such as the short-range structure of nuclei (short-range correlations, origin of nuclear core, nonnucleonic DoF), the partonic structure of the neutron (PDFs, GPDs, TMDs), nuclear modifications of quark/gluon densities (EMC effect, antishadowing, shadowing), and coherent phenomena at small x. Detection of the nuclear breakup state with the EIC forward detectors substantially extends the physics reach (spectator tagging, coherent processes) and poses new challenges for theory and experiment. The meeting is intended to discuss the physics concepts and objectives, assess the feasibility and potential of such measurements with EIC, and plan next steps in physics and detector simulations. It brings together researchers in spin physics, nuclear QCD at large and small x, and accelerator and detector development.

 

Topics to be discussed:

1. Tagging for neutron structure measurements: Initial-state modifications, final-state interactions,  how to separate or correct them, neutron structure extraction, polarized measurements

2. Target fragmentation of the nucleon: Physics interest, data and models, spin dependence, interplay with nuclear final-state interactions in tagged DIS

3. Short-range correlation studies with light nuclei: Probing nuclear core effects in measurements with D and 3He, observing 3N SRC in simultaneous measurements with 3He and 4He

4. Tagging for studies of nuclear quark–gluon structure: Tagged EMC effect, direct observation of non-nucleonic degrees of freedom (ΔΔ component in the deuteron, ΔNN in 3He, ...)

5. Partonic structure of light nuclei: Theoretical expectations for nuclear shadowing (leading/higher twist, gluons/quarks), antishadowing, EMC effect, spin and isospin dependence; experimental strategies

6. Coherent scattering on light nuclei: DVCS and exclusive meson production, nuclear GPDs, impact parameter dependence and quark/gluon imaging, spin effects (D Spin-1, 3He Spin-1/2, 4He Spin-0)

7. Final states in high-energy nuclear processes: Color transparency in vector meson production, inelastic diffraction from initial-state fluctuations, high-momentum breakup processes

8. EIC forward ion detection: Physics requirements, integration with optics and IR design, experience with RHIC ZDCs and Roman Pots

9. EIC simulations of processes with light nuclei: Physics models, MC generators and software tools, ongoing and planned efforts

 

An essential part of the program will be to discuss the results and plans in nuclear experiments at other present/future facilities, such as JLab 12 GeV, COMPASS, RHIC, LHC (including proposed fixed-target program), GSI FAIR, Dubna NIKA, J-PARC, and assess the potential synergies with EIC.

Registration
Exploring QCD with light nuclei at EIC Jan, 21-24, 2020
Participants
  • Abhay Deshpande
  • Alexander Jentsch
  • Andrew Denniston
  • Angela Biselli
  • Ayman Al-bataineh
  • Barak Schmookler
  • Bjoern Schenke
  • Carlos Perez Lara
  • Carolina Robles
  • Charles Hyde
  • Christian Weiss
  • Cynthia Keppel
  • Dien Nguyen
  • Donal Day
  • Douglas Higinbotham
  • Efrain Segarra
  • Eli Piasetzky
  • Federico Alberto Ceccopieri
  • Florian Hauenstein
  • Franck SABATIE
  • Gerald Miller
  • Haixin Huang
  • Holger Witte
  • Holly Szumila-Vance
  • Ian Cloet
  • ismail zahed
  • Jackson Pybus
  • Jamal Jalilian-Marian
  • James Maxwell
  • Jia Jiangyong
  • John Arrington
  • Julian Kahlbow
  • Klaus Dehmelt
  • Kong Tu
  • Lijuan Ruan
  • Maria Patsyuk
  • Mark Strikman
  • Matthew Musgrave
  • Misak Sargsian
  • Pavan _
  • Pawel Nadel-Turonski
  • Prithwish Tribedy
  • Raju Venugopalan
  • Raphael Dupre
  • Reynier Cruz Torres
  • Sergio Scopetta
  • Shunzo Kumano
  • Sylvester Joosten
  • Tyler Kutz
  • Vadim Guzey
  • Vadim Ptitsyn
  • Werner Boeglin
  • wim cosyn
  • Yury Uzikov
    • 08:00 08:45
      Breakfast 45m
    • 08:45 09:00
      Welcome 15m
      Speaker: Abhay Deshpande (Stony Brook University)
    • 09:00 09:20
      Introduction and plan of meeting 20m
      Speaker: Organizers
    • 09:20 12:30
      Nucleon fragmentation / Nuclear breakup
      • 09:20
        Target fragmentation and fracture functions 40m
        Speaker: Federico Ceccopieri
      • 10:00
        Nucleon fragmentation dynamics and spin dependence 30m
        Speaker: Mark Strikman
      • 10:30
        Break 30m
      • 11:00
        JLab TDIS experiment 30m
        Speaker: Cynthia Keppel (Thomas Jefferson National Accelerator Facility)
      • 11:30
        Nuclear breakup measurements in DIS: Motivation, theory, applications 30m
        Speaker: Christian Weiss (Jefferson Lab)
      • 12:00
        Discussion: Target fragmentation physics with EIC 30m
    • 12:30 14:00
      Break 1h 30m
    • 14:00 18:00
      Neutron structure: Inclusive, tagged, spin, GPDs
      • 14:00
        Spin structure measurements with polarized 3He 40m
        Speaker: James Maxwell (Jefferson Lab)
      • 14:40
        3He spin structure and intrinsic isobars 30m
        Speaker: Vadim Guzey (Petersburg Nuclear Physics Institute)
      • 15:10
        Polarized deuteron DIS with spectator tagging 40m
        Speaker: Wim Cosyn (Ghent University)
      • 15:50
        Break 30m
      • 16:20
        Neutron spin structure from SIDIS and DVCS on 3He 30m
        Speaker: Sergio Scopetta
      • 16:50
        Neutron GPD fixed-target measurements 40m
        Speaker: Angela Biselli (Fairfield University)
      • 17:30
        Discussion: Neutron spin structure with EIC 30m
    • 08:00 09:00
      Breakfast 1h
    • 09:00 13:00
      SRC: Nucleonic degrees of freedom, nuclear core
    • 13:00 14:00
      Break 1h
    • 14:00 15:20
      SRC: 3N Correlations / Nuclear pions
    • 15:20 15:50
      Break 30m
    • 15:50 18:30
      SRC: SRC-EMC Connection / Gluonic structure
      • 15:50
        Inclusive electron scattering results with JLab 6 and 12 GeV 40m
        Speaker: John Arrington (Argonne National Lab)
      • 16:30
        EMC-SRC connection and free neutron structure 40m
        Speaker: Efrain Segarra (Massachusetts Institute of Technology)
      • 17:10
        Gluonic structure of SRCs from high-momentum deuteron breakup 40m
        Speaker: Raju Venugopalan (BNL)
      • 17:50
        Discussion: SRC studies with EIC 40m
    • 19:00 21:00
      Dinner 2h
    • 08:00 09:00
      Breakfast 1h
    • 09:00 10:00
      Gluonic structure / Coherent processes
    • 10:00 12:00
      EIC User Group Remote Meeting 2h
    • 12:00 13:30
      Break 1h 30m
    • 13:30 14:00
      Coherent processes
      • 13:30
        DVCS on He nuclei 30m
        Speaker: Sergio Scopetta
    • 14:00 15:40
      Tensor polarization
    • 15:40 16:10
      Break 30m
    • 16:10 18:00
      Tagged EMC effect: Fixed-target, EIC
      • 16:10
        Nuclear partonic structure from breakup measurements A >= 2 30m
        Speaker: Raphael Dupre (IPN Orsay)
      • 16:40
        Tagged EMC measurements with EIC 30m
        Speaker: Florian Hauenstein (ODU)
      • 17:10
        Discussion: Nuclear partonic structure from tagged measurements with EIC 50m
    • 08:00 09:00
      Breakfast 1h
    • 09:00 10:20
      Shadowing / Fluctuations
      • 09:00
        Leading-twist shadowing in inclusive and diffractive DIS 40m
        Speaker: Vadim Guzey (Petersburg Nuclear Physics Institute)
      • 09:40
        Diffraction and fluctuations in high-energy scattering on light nuclei 40m
        Speaker: Bjoern Schenke (BNL)
    • 10:20 10:50
      Break 30m
    • 10:50 13:00
      Forward ion detection with EIC
    • 13:00 14:00
      Break 1h
    • 14:00 17:00
      EIC simulations / Planning
      • 14:00
        Event reconstruction in inclusive eA scattering 30m
        Speaker: Barak Schmookler (Stony Brook University)
      • 14:30
        Discussion: Simulation tools, collaboration, next steps 2h 30m