# GPPU Seminar

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*Introduction to the three-nucleon (3N) interaction*

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Michele Viviani

(Laboratori Nationali di Frascati INFN, Italy)

### Date

13:00-15:00, October 17th, 2018### Place

Room 745, Science Complex B (H-03) map### Abstract

The lecture will be organized as follows:

- importance of the 3N interaction in nuclei (binding energies of light nuclei and scattering observables in 3 and 4 nucleon systems)

- The Fujita-Miyazawa 3N interaction (properties of the Delta resonance; the pion-nucleon-delta coupling constant; the decay width of the Delta resonance; the derivation of the Fujita-Miyazawa force using quantum mechanics; the 3H binding energy with the Fujita-Miyazawa 3N interaction)

- Modern theory of the 3N interaction (perturbation theory using as expansion parameter the momenta of the nucleons; examples of contributions; low-energy constants and how to fix them).

### Point

**GSP 1**

Contact: Yusuke Tanimura (tanimura [at] nucl.phys.tohoku.ac.jp)