On the nucleon self-energy in nuclear matter
  We consider the nucleon self-energy in nuclear matter in the absence of Pauli blocking. It is evaluated using the partial-wave analysis of $NN$ scattering data. Our results are compared with that of a realistic calculation to estimate the effect of this blocking. It is also possible to use our results as a check on the realistic calculations. 
S. Mallik, Andreas Nyffeler, M. C. M. Rentmeester, Sourav Sarkar