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Calculations of Three-Nucleon Reactions
Journal article   Open access   Peer reviewed

Calculations of Three-Nucleon Reactions

H Witała, J Golak, R Skibiński, K Topolnicki, H Kamada, E Epelbaum, W Glöckle, H Krebs, W Polyzou and A Nogga
Few-body systems, Vol.54(7), pp.897-902
08/2013
DOI: 10.1007/s00601-012-0540-x
url
https://doi.org/10.1007/s00601-012-0540-xView
Published (Version of record) Open Access

Abstract

Faddeev calculations using the chiral three-nucleon force in next-to-next-to-next-to-leading-order show that this force is too weak to provide an explanation for the low-energy A y puzzle. The large discrepancy between data and theory for the neutron–neutron quasi-free-scattering cross section in low energy neutron–deuteron breakup requires a modification of the $${^{1}S_0}$$ neutron–neutron force. We discuss the consequences that a bound $${^{1}S_0}$$ state of two neutrons has on neutron–deuteron scattering observables. At higher energies we compare the solutions of the non-relativistic three-nucleon Faddeev equations with three-nucleon force included to the solutions of its Poincaré invariant version.
Physics Atomic, Molecular, Optical and Plasma Physics Nuclear Physics, Heavy Ions, Hadrons Particle and Nuclear Physics

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