2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/114362We estimate four-nucleon force effects between different 4He wave functions by calculating the expectation values of four-nucleon potentials which were recently derived within the framework of chiral effective field theory. We find that the four-nucleon force is attractive for the wave functions with a totally symmetric momentum part. The additional binding energy provided by the long-ranged part of the four-nucleon force is of the order of a few hundred keV.13 pages, 4 eps figures, 3 tablesNuclear Theorytext