Mexican hat curve for hydrogen- and antihydrogen-states in natural atom   H
  Molecular band spectra as well as atomic line spectra reveal a left-right symmetry for atoms (Van Hooydonk, Spectrochim. Acta A, 2000, 56, 2273 and Phys. Rev. A 66, 044103 (2002). We now extract a Mexican hat shaped or double well curve from the line spectrum (Lyman ns-series) of natural atom H. An H CSB theory and its oscillator contribution (1-0.5pi/n)sup(2)/nsup(2) lead to unprecedented results for antihydrogen physics, ahead of the CERN-AD-project on artificial antihydrogen. 
G. Van Hooydonk