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arXiv · 1410.0756

Low-energy neutron-deuteron reactions with N3LO chiral forces

J. Golak·R. Skibinski·K. Topolnicki·H. Witala·E. Epelbaum·H. Krebs·H. Kamada·Ulf-G. Meißner·V. Bernard·P. Maris·J. Vary·S. Binder·A. Calci·K. Hebeler·J. Langhammer·R. Roth·A. Nogga·S. Liebig·D. Minossi
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Abstract

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 Ay 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.

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J. Golak, R. Skibinski, K. Topolnicki, H. Witala, E. Epelbaum, H. Krebs, H. Kamada, Ulf-G. Meißner, V. Bernard, P. Maris, J. Vary, S. Binder, A. Calci, K. Hebeler, J. Langhammer, R. Roth, A. Nogga, S. Liebig, D. Minossi. 2014-10-07. Low-energy neutron-deuteron reactions with N3LO chiral forces. https://doi.org/10.1140/epja%2Fi2014-14177-7

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