1. at Forschungszentrum Jülich
EDM activities
at Forschungszentrum Jülich
A Status Report
Hans Ströher|Forschungszentrum Jülich

2. Technical Design Report
Introduction
CP EDM
pEDM dEDM 3HeEDM
JEDI
COSY
R&D – recent results
Deflector
RF Wien filter
Precursor experiment
Polarimeter
Simulations
Technical Design Report
ERC AdG srEDM
Politics
NuPECC LRP

3. Jülich Electric Dipole Moment Investigations
JEDI
Jülich Electric Dipole Moment Investigations
actual count: 126
Current spokespersons: Paolo Lenisa (INFN Ferrara), Jörg Pretz (FZJ)
Executive Board, PubCom, Bi-annual Collaboration Mtgs.

4. COSY at Forschungszentrum Jülich
JEDI
COSY at Forschungszentrum Jülich
… the only (operational) test facility for
CP EDM

5. Spin Coherence Time (SCT) Optimization
R&D (I)
Spin Coherence Time (SCT) Optimization
PRL 117, (2016)

6. R&D (II)
Spin Tune Measurement
PRL 115, (2015)

7. Active Feedback System
R&D (III)
Active Feedback System
… also used to study driven oscillation of polarization vector
by an RF solenoid …
Publication in preparation

8. Data Base Measurements (dC scattering)
R&D (IV)
Data Base Measurements (dC scattering)
Use of dedicated target point (TP3) in COSY, C and CH2 targets
and WASA forward detectors; energy scan ( MeV)
Analysis has started

9. Deflector Development
R&D (V)
Deflector Development
Fermilab deflector at Jülich;
ExB deflector development
using ANKE (D2) magnet

10. Precursor Experiment (I) RF Wien Filter Development
Nucl. Instrum. Methods Phys. Res. A 828, 116 (2016)

11. Precursor Experiment (I) RF Wien Filter Development
… will be installed into COSY ring (TP1, PAX) in April-May 2017
and commissioned in 2 beam times in June and September 2017

12. Precursor Experiment (II) Polarimeter Development
Sub-project is well under way …

13. Simulations (I) Precursor Experiment
Use of code COSY INFINITY for spin tracking simulations, e.g.:
impact of (randomly Gaussian distributed) quadrupole misalignments

14. Technical Design Report (I)
Deuteron Ring Options
Quasi frozen-spin (QFS) concept;
Spacial separation of electric and magnetic fields

15. Politics (I)
ERC AdG srEDM
ends Sept. 2021

16. Politics (II) NuPECC Long Range Plan 2017
Draft recommendation:
„The community should vigorously pursue a coordinated
research and development program
for new exciting science opportunities, like, e.g., the
design of precision storage rings for EDM searches …
We will get support from this community …
Finalization of the report by middle of 2017

17. COSY at Forschungszentrum Jülich
Politics (III)
COSY at Forschungszentrum Jülich
Data base
New Polarimeter
Installation of
RF Wien filter
for precursor experiment
… now foreseen not run beyond September 2021
Strategy of Forschungszentrum Jülich: no host lab for
CP EDM

18. Technical Design Report
Summary
CP EDM
pEDM dEDM 3HeEDM
JEDI
COSY
R&D – recent results
Deflector
RF Wien filter
Precursor experiment
Polarimeter
Simulations
Technical Design Report
ERC AdG srEDM
Politics
NuPECC LRP
COSY as test facility
for pEDM R&D (beyond 2021)
ERC Design Study
(…)
International Initiative
CP EDM