Name: Low Energy Electron Positron Physics at Jefferson Lab
Start: 2026-03-23T08:30:00-04:00
End: 2026-03-27T17:55:00-04:00
Location: CEBAF CENTER

Low Energy Electron Positron Physics at Jefferson Lab

from Monday, March 23, 2026 (8:30 AM) to Friday, March 27, 2026 (5:55 PM)

Monday, March 23, 2026
8:35 AM
8:35 AM - 12:30 PM
Room: F113
Contributions

8:45 AM Registration

9:00 AM Welcome

9:15 AM Workshop Charge - Eric Voutier (Université Paris-Saclay - CNRS/IN2P3/IJCLab)

9:30 AM TBD - Wally Melnitchouk (Jefferson Lab)

10:00 AM The Ce+BAF 12 GeV project - Yves Roblin (jefferson lab)

11:00 AM TBD - Kevin Jordan (Jefferson Lab)

11:30 AM Recirculating injector at LERF - Layout and optics architecture - Alex Bogacz (Jefferson Lab)

12:00 PM TBD - Andreas Wagner (Helmholtz-Zentrum Dresden-Rossendorf)
12:30 PM Lunch
Lunch
12:30 PM - 1:45 PM
Room: F113
1:45 PM
1:45 PM - 5:30 PM
Room: F113
Contributions

1:45 PM TBD - Max Bruker (Jefferson Lab)

2:15 PM TBD - Victor Manuel Lizarraga-Rubio

2:45 PM TBD - Silviu Covrig Dusa (Jefferson Lab)

3:35 PM TBD - Vaclav Kostroun (Xelera Research)

4:05 PM Development of a rotating target - Yu Morikawa (KEK)

4:35 PM High energy and slow positron sources at KEK - Yoshinori Enomoto (KEK)
5:30 PM Reception
Reception
5:30 PM - 7:00 PM
Room: F113
Tuesday, March 24, 2026
8:45 AM
8:45 AM - 12:30 PM
Room: F113
Contributions

8:45 AM Introduction and overview - Farida Selim (Arizona State University)

9:15 AM TBD - Alex Weiss (University of Texas at Arlington)

9:45 AM Total-reflection high-energy positron diffraction: principle and application - Yuki Fukaya (Japan Atomic Energy Agency)

10:35 AM Slow mono-energetic positron beams for defect characterization in material science - Marcel Dickmann (University of the Bundeswehr Munich)

11:05 AM TBD - Andrew Knights (McMaster University)

11:35 AM The Compact Positron Source project at SLAC - Spencer Gessner (SLAC)
12:30 PM Lunch
Lunch
12:30 PM - 1:45 PM
Room: F113
1:45 PM
1:45 PM - 5:45 PM
Room: F113
Contributions

1:45 PM TBD - Michael Nycz (University of Virginia)

2:15 PM TBD - Paul Gueye (Facility for Rare Isotope Beams/Michigan State University)

2:45 PM Low-energy electron scattering for nucleons and nuclei, including exotics - Toshimi Suda (Rsearch Center for Electron-Photon Science)

3:35 PM Heaven and Earth: connecting JLab to the cosmos - Jorge Piekarewicz (Florida State University)

4:05 PM Test of Weizsaker-Williams method using Compton scattering from atomic electrons - Bogdan Wojtsekhowski (Jefferson Lab)

4:35 PM Low energy neutrino-nucleus interaction - Kate Scholberg (Duke University)
Wednesday, March 25, 2026
8:45 AM
8:45 AM - 12:30 PM
Room: F113
Contributions

8:45 AM TBD - David Cassidy (University College London)

9:15 AM An energy tunable positronium beam produced using photo-detachment of positronium negative ions - Yasuyuki Nagashima (Department of Physics, Tokyo University of Science)

9:45 AM TBD - Kosuke Yoshioka (The University of Tokyo)

10:35 AM TBD - Tim Gay (University of Nebraska-Lincoln)

11:05 AM TBD - Daniel Murtagh (Marietta Blau Institute for Particle Physics)

11:35 AM TBD - Gabriel Cecchini (University of California)
12:30 PM Lunch
Lunch
12:30 PM - 2:00 PM
Room: F113

2:00 PM

2:00 PM - 4:30 PM
Room: F113
Thursday, March 26, 2026
8:45 AM
8:45 AM - 12:30 PM
Room: F113
Contributions

8:45 AM Improved search for CP-violation in ortho-positronium decay - Tom-Erik Haugen (National Institute of Standards and Technology)

9:15 AM TBD - Riad Suleiman (Jefferson Lab)

9:45 AM TBD - Aleksandr Pustyntsev (University of Mainz)

10:35 AM TBD - David Mack (JLab)

11:05 AM Dark sector searches at Ce+BAF - Marco Battaglieri (INFN-GE)

11:35 AM TBD - Win Lin (Stony Brook University)
12:30 PM Lunch
Lunch
12:30 PM - 1:45 PM
Room: F113
1:45 PM
1:45 PM - 5:30 PM
Room: F113
Contributions

1:45 PM Channeling experiments at the Mainz Microtron MAMI and the new positron beam line - Werner Lauth (University of Mainz)

2:15 PM Positron diffraction and positronium studies with high-intensity slow-positron beams generated by an S-band LinAc - Ken Wada (High Energy Accelerator Research Organization (KEK))

2:45 PM Moderator informed compact positron source optimization - Sophie Crisp (SLAC National Accelerator Laboratory)

3:35 PM TBD - Fanglei Lin (Oak Ridge Notional Laboratory)

4:05 PM TBD - Tim Gay (University of Nebraska-Lincoln)

4:35 PM Spin light polarimetry for low energy electron/positron beams - Dipangkar Dutta (Mississippi State University)
Friday, March 27, 2026
8:05 AM
8:05 AM - 12:30 PM
Room: F113
Contributions

8:45 AM TBD - Christian Weiss (Jefferson Lab)

9:15 AM The Sivers effect in atomic Compton scattering - Andrea Signori (University of Turin and INFN)

9:45 AM TBD - Concettina Sfienti (University of Mainz)

10:35 AM The Sherman function and its radiative correrctions for elastic positron-nucleus scattering - Doris Jakubassa (University of Munich)

11:05 AM Radiative corrections for elastic lepton-proton scattering with McMule - Matteo Ronchi (University of Mainz)

11:35 AM Positron beam-based search for a MeV mass range axion - Ashot Gasparian (NCAT)
12:30 PM Lunch
Lunch
12:30 PM - 1:45 PM
Room: F113
1:45 PM
1:45 PM - 5:30 PM
Room: F113
Contributions

1:45 PM Overview on the Nuclear Radius Extraction Collaboration - Vladimir Khachatryan (Duke University)

2:10 PM Low-energy monochromatic high-intensity high-brightness positron source in the LERF and its possible applications - Branislav Vlahovic (North Carolina Central University)

2:35 PM A new pulsed low-energy positron system at UniBwN-Lab: design and current status - Ricardo Helm (University of the Bundeswehr Munich)

3:00 PM Status of the scanning positron microscope at the NEPOMUC positron source - Johannes Mitteneder (Universität der Bundeswehr München)

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