From 3 nucleons to 3 quarks

Abstract

Some short history of few-body methods originated from the famous Skornyakov-Ter-Martirosyan equation is given, including latest development of Faddeev formalism and Efimov states. The 3q system is shown to require an alternative, which is provided by the hyperspherical method (K-harmonics) which is highly successful for baryons.

Comments: 9 pages, invited talk at the miniconference dedicated to the 80-th year celebration of Professor Karen A.Ter-Martirosyan, 30 September - 1 October, ITEP, Moscow