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Heidelberg 2015 – wissenschaftliches Programm

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SYDM: Symposium Dipole Moments - A Tool to Search for New Physics

SYDM 1: Session 1

SYDM 1.2: Hauptvortrag

Dienstag, 24. März 2015, 11:40–12:20, C/gHS

Dedicated storage ring EDM methods — •Yannis Semertzidis for the JEDI collaboration — CAPP/IBS at KAIST and Physics Dept., KAIST, Daejeon, South Korea.

Dedicated storage ring electric dipole moment (EDM) methods are under development with potential sensitivity level at the 1E-29 e-cm for both the proton and deuteron nuclei. Two large collaborations, the JEDI at COSY/Juelich and srEDM at BNL/USA, are working closely together to optimize the final experimental plan. Together with the neutron EDM experiments, the proton and deuteron experiments, can help to shed light on the CP-violating source should one of them discovers a non-zero EDM value.

The R&D program is well under way with work on hadronic polarimetry, spin coherent time optimization/benchmarking, electric field strength tests, and precision beam/spin dynamics. The COSY ring at Juelich is being used in several tests requiring stored polarized beams. The optimization tests are expected to be concluded within the next two to three years.

Storage ring EDMs are sensitive to new physics at the 1000 TeV level, much beyond the mass scale reach of LHC and it can provide a hint of the next interesting scale. If new physics is discovered at LHC, it will probe the CP-violating phases of this new physics at the sub-micro-radian scale, an unprecedented sensitivity level.

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