... minimize the Hamiltonian HLN = H − λ1 N ˆ into the Hamiltonian As the adding a second order of the particle number operator N THERMODYNAMIC PAIRING AND ITS INFLUENCE ON NUCLEAR LEVEL DENSITY 91 result, ... corrections due to the Wigner EW igner and deformation energies 92 NGUYEN QUANG HUNG, DANG THI DUNG, TRAN DINH TRONG Fig Pairing gaps ∆ (neutron and proton), total (neutron + proton) excitation energy ... states) are taken into account The pairing interaction parameters G are adjusted 56 Fe, 60 Ni, 98 Mo, THERMODYNAMIC PAIRING AND ITS INFLUENCE ON NUCLEAR LEVEL DENSITY ρ (MeV -1 ) 10 107 56 Fe (a)...