EPJ Web of Conferences
Volume 3, 201019th International IUPAP Conference on Few-Body Problems in Physics
|Number of page(s)||8|
|Published online||12 April 2010|
Four-nucleon force contribution to the binding energy of 4He
Forschungszentrum Jülich, Institut für Kernphysik (Theorie) and
Jülich Center for Hadron Physics, D-52425
2 Forschungszentrum Jülich, Institute for Advanced Simulation, D-52425 Jülich, Germany
3 M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30059 Kraków, Poland
4 Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universitat Bonn, D-53115 Bonn, Germany
5 Institut für theoretische Physik II, Ruhr-Universität Bochum, D-44780 Bochum, Germany
6 Department of Physics, Faculty of Engineering, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu 804-8550, Japan
a e-mail: email@example.com
We study the four-nucleon force contribution to the binding energy of 4He in the framework of chiral nuclear interactions. The four-nucleon forces start to contribute in the next-to-next-to-next-to leading order. We discuss our power counting expectations for the size of the 4N contribution and then explicitly calculate it in ﬁrst order perturbation theory. Our expectations agree with the results. Quantitatively, the contribution might be signiﬁcant. This motivates further studies in more complex nuclei.
© Owned by the authors, published by EDP Sciences, 2010
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