4.4 Article

Low-energy neutron-deuteron reactions with N3LO chiral forces

Journal

EUROPEAN PHYSICAL JOURNAL A
Volume 50, Issue 11, Pages -

Publisher

SPRINGER
DOI: 10.1140/epja/i2014-14177-7

Keywords

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Funding

  1. Polish National Science Center [DEC-2013/10/M/ST2/00420]
  2. European Community-Research Infrastructure Integrating Activity Exciting Physics Of Strong Interactions under the Seventh Framework Programme of EU under the Seventh Framework Programme of EU, the ERC [acronym WP4 EPOS, 259218]
  3. Foundation for Polish Science MPD program
  4. European Union within the Regional Development Fund
  5. US Department of Energy [DESC0008485, DE-FG02-87ER40371]
  6. US National Science Foundation [PHYS-0904782]
  7. ERC [307986]
  8. GAUSTEQ (Germany and U. S. Nuclear Theory Exchange Program for QCD Studies of Hadrons and Nuclei) [DE-SC0006758]
  9. Ohio Supercomputer Centre, USA [PAS0680]
  10. Office of Science of the U.S. Department of Energy [DE-AC02-06CH11357]
  11. European Research Council (ERC) [259218] Funding Source: European Research Council (ERC)
  12. U.S. Department of Energy (DOE) [DE-SC0006758] Funding Source: U.S. Department of Energy (DOE)

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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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