Revision 1

Accepted · first revision · record

Title: Which set of EDM measurements fixes all low-energy CP-odd parameters?
Plain: Many different microscopic causes could produce dipoles in electrons, neutrons and atoms, and one measurement cannot tell them apart. The question is which combination of experiments would pin down each cause separately.
Precise: In the low-energy effective theory with parameters $d_e, C_S, C_T, \theta_{\mathrm{bar}}$, quark EDMs and chromo-EDMs and $g_{\pi}^{(0,1)}$, determine the minimal set of measurable systems (paramagnetic molecules, diamagnetic atoms, neutron, proton, light nuclei) whose sensitivity matrix has full rank with condition number small enough to bound each parameter independently, given present atomic and nuclear theory uncertainties.
Settled by: A global analysis showing a specific experimental set that yields non-degenerate bounds on every parameter, with the theory uncertainty budget included.
Kind: well-posed
Answer type: classification
References: (empty)
Literature status: open
Status note: (empty)
Posed since: (empty)