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Neutron-proton scattering with lattice chiral effective field theory at next-to-next-to-next-to-leading order

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arxiv 1806.07994 v3 pith:GS5RB4S7 submitted 2018-06-20 nucl-th hep-lat

Neutron-proton scattering with lattice chiral effective field theory at next-to-next-to-next-to-leading order

Ning Li , Serdar Elhatisari , Evgeny Epelbaum , Dean Lee , Bing-Nan Lu , Ulf-G. Mei{\ss}ner This is my paper
classification nucl-th hep-lat
keywords latticechiralaccurateeffectivefieldinteractionsneutron-protonnext-to-next-to-next-to-leading
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present a new lattice formulation of chiral effective field theory interactions with a simpler decomposition into spin channels. With these interactions the process of fitting to the empirical scattering phase shifts is simplified, and the resulting lattice phase shifts are more accurate than in previous studies. We present results for the neutron-proton system up to next-to-next-to-next-to-leading order for lattice spacings of $1.97$, $1.64$, $1.32$, and $0.99~{\rm fm}$. Our results provide a pathway to $\textit{ab initio}$ lattice calculations of nuclear structure, reactions, and thermodynamics with accurate and systematic control over the chiral nucleon-nucleon force.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Elastic deuteron-deuteron scattering within Nuclear Lattice Effective Field Theory

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    NLEFT calculation of 5S2 dd scattering produces scattering length 12.96 fm and effective range 3.62 fm, indicating stronger repulsion than prior work.

  2. Elastic deuteron-deuteron scattering within Nuclear Lattice Effective Field Theory

    nucl-th 2026-07 unverdicted novelty 6.0

    Nuclear lattice EFT calculation of 5S2 dd scattering yields scattering length 12.96 fm and effective range 3.62 fm, larger than prior results and indicating stronger repulsion.

  3. From binding and saturation to criticality in nuclear matter with lattice effective field theory

    nucl-th 2026-04 unverdicted novelty 6.0

    Improved leading-order lattice Hamiltonians lower the liquid-gas critical temperature of symmetric nuclear matter to 13.50(17)-13.71(19) MeV while improving zero-temperature binding energies and saturation point.