The enthalpy and entropy of vacancy creation in solid argon are re-evaluated using the two-body force approximation. At the triple point, the resulting vacancy free energy is g, = 1900 -4.0 RTcaljmole vat. This does not agree well with previous calculations of g,, but agrees well with experimental values of g, obtained from the argon specific heat”’ C, (but not with the questionable values obta...

Nuclear many-body theory has been intensively studied for many years and reached a high level of understanding, but there still are some unresolved fundamental problems. One of the leading approaches is to introduce an effective interaction and reduce the full many-body problem to a certain model-space problem. There have been many review works concerning the effective interaction theory, for e...

We analyze data on deep inelastic scattering of electrons from the proton using ideas from standard many-body theory involving bound constituents subject to interactions. This leads us to expect, at large threemomentum transfer q, scaling in terms of the variable ỹ = ν − |q|. The response at constant |q| scales well in this variable. Interaction effects are manifestly displayed in this approach...

in this work, the (100) surface of au and pts face centered cubic lattice, has been simulated in monte-carlo method, using a 486-dx2 computer. the potential equation that was used for the interaction among atoms in the metal surfaces is called sutton and chen potential. this potential is introduced for the interaction of floating nuclei in the electron sea, and attractive term is a many body po...

In this paper, we study the inverse scattering related to channel scattering operator S in many-body problems. If the incoming and outgoing channels are associated with a same, but arbitary cluster decomposition, a, of the N-particle system, we prove that all eeective interactions between the mass-centers of the clusters in a can be recovered from the high energy asymptotics of scattering matri...