Parity nonconservation effect in resonance recombination of polarized   electrons with heavy hydrogenlike ions
  Parity nonconservation (PNC) effect in recombination of a polarized electron with a heavy H-like ion in case of resonance with a doubly excited state of the corresponding He-like ion is studied. It is assumed that photons of the energy corresponding to the one-photon decay of the doubly excited state into the $2^1S_0$ or the $2^3P_0$ state are detected at a given angle with respect to the incident electron momentum. Calculations are performed for heliumlike thorium ($Z = 90$) and gadolinium ($Z = 64$), where the $2^1S_0$ and $2^3P_0$ levels are near to cross and, therefore, the PNC effect is strongly enhanced. 
A.V.Maiorova, V.M.Shabaev, A.V.Volotka, V.A.Zaytsev, G.Plunien,   T.Stoehlker
physics.atom-ph