Three- and Four-Body Correlations in Nuclear Matter

 Few-nucleon correlations in nuclear matter at finite densities and temperatures are explored. Using the Dyson-equation approach leads to effective few-body equations that include self-energy corrections and Pauli blocking factors in a systematic way. Examples given are the nucleon-deuteron in-medium reaction rates, few-body bound states including the α-particle, and α-particle condensation. Received October 17, 2001; accepted for publication November 12, 2001