Eur. Phys. J. A 15, 343-349 (2002)
DOI: 10.1140/epja/i2002-10035-7

Nonlinearity of strong interaction and doorway states for one-nucleon transfer reactions

B.L. Birbrair and V.I. Ryazanov

Petersburg Nuclear Physics institute Gatchina, 188300 St. Petersburg, Russia

birbrair@thd.pnpi.spb.ru

(Received: 14 May 2002 / Published online: 19 November 2002)

Abstract
The experimental data on the doorway states for one-nucleon transfer reactions permit to reveal the many-particle nucleon-nucleon forces resulting from the nonlinearity of strong interaction. The three-particle and four-particle forces are found to be of the same magnitude as the two-particle ones in contrast to the finding from the few-nucleon systems. The origin of this difference is explained.

PACS
24.80.+y - Nuclear tests of fundamental interactions and symmetries.
25.40.-h - Nucleon-induced reactions.
21.10.-k - Properties of nuclei; nuclear energy levels.
13.75.Cs - Nucleon-nucleon interactions (including antinucleons, deuterons, etc.).

© Società Italiana di Fisica, Springer-Verlag 2002