https://doi.org/10.1140/epja/i2014-14177-7
Regular Article - Theoretical Physics
Low-energy neutron-deuteron reactions with N 3 LO chiral forces
1
M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30059, Kraków, Poland
2
Institut für Theoretische Physik II, Ruhr-Universität Bochum, D-44780, Bochum, Germany
3
Department of Physics, Faculty of Engineering, Kyushu Institute of Technology, 804-8550, Kitakyushu, Japan
4
Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, D-53115, Bonn, Germany
5
Institute for Advanced Simulation, Institut für Kernphysik, Jülich Center for Hadron Physics, JARA - High Performance Computing Forschungszentrum Jülich, D-52425, Jülich, Germany
6
Institut de Physique Nucléaire, CNRS/Univ. Paris-Sud, 11, (UMR 8608), F-91406, Orsay Cedex, France
7
Department of Physics and Astronomy, Iowa State University, 50011, Ames, Iowa, USA
8
Institut für Kernphysik, Technische Universität Darmstadt, 64289, Darmstadt, Germany
9
Extreme Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291, Darmstadt, Germany
10
Institut für Kernphysik, Institute for Advanced Simulation, Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425, Jülich, Germany
11
Institut für Kernphysik, Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425, Jülich, Germany
* e-mail: witala@if.uj.edu.pl
Received:
3
October
2014
Accepted:
20
November
2014
Published online:
27
November
2014
We solve three-nucleon Faddeev equations with nucleon-nucleon and three-nucleon forces derived consistently in the framework of chiral perturbation theory at next-to-next-to-next-to-leading order in the chiral expansion. In this first investigation we include only matrix elements of the three-nucleon force for partial waves with the total two-nucleon (three-nucleon) angular momenta up to 3 (5/2). Low-energy neutron-deuteron elastic scattering and deuteron breakup reaction are studied. Emphasis is put on A y puzzle in elastic scattering and cross sections in symmetric-space-star and neutron-neutron quasi-free-scattering breakup configurations, for which large discrepancies between data and theory have been reported.
© SIF, Springer-Verlag Berlin Heidelberg, 2014