| Reference Label | Details |
|---|---|
| est unc | estimated uncertainty |
| Turbiner 2013 | A. V. Turbiner and J. C. Lopez Vieyra, Phys. Rev. Lett. 111, 163003/1-4 (2013) Stable He- Can Exist in a Strong Magnetic Field |
| Bylicki 1996 | M. Bylicki and G. Pestka, J. Phys. B 29, L353-L357 (1996) Bound States of He- |
| Tech 1971 | J. L. Tech and J. F. Ward, Phys. Rev. Lett. 27, 367 (1971) Accurate Wavelength Measurement of the 1s2p 3P° - 2p2 3P Transition in 4He |