Symmetry breaking in covalent chiral bond Hsub2, according to accurate vibrational levels from Kratzer bond theory

Symmetry breaking in Hsub2, quantified with Kratzer bond theory, leads to vibrational levels with errors of only 0,00008 %. For quanta, 0,0011 % errors are smaller than with any ab initio QM method. Chiral behavior of covalent bond Hsub2 implies bonding between left- and right-handed atoms HsubL and HsubR or between hydrogen H and antihydrogen Hbar. This generic Hsub2 asymmetry is given away by a Hund-type Mexican hat curve, invisible in QM.