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| Journal Article | FZJ-2019-02284 |
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2019
Inst.
Woodbury, NY
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Please use a persistent id in citations: http://hdl.handle.net/2128/22117 doi:10.1103/PhysRevC.99.024313
Abstract: We present calculations of nucleon-deuteron scattering as well as ground and low-lying excited states of light nuclei in the mass range A=3–16 up through next-to-next-to-leading order in chiral effective field theory using semilocal coordinate-space regularized two- and three-nucleon forces. It is shown that both of the low-energy constants entering the three-nucleon force at this order can be determined from the triton binding energy and the differential cross section minimum in elastic nucleon-deuteron scattering. From all considered nucleon-deuteron scattering observables, the strongest constraint on these low-energy constants emerges from the precisely measured cross section minimum at EN=70 MeV. The inclusion of the three-nucleon force is found to improve the agreement with the data for most of the considered observables.
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