First ab initio α-α scattering phase shifts with N3LO chiral NLEFT interaction on fine lattice agree with empirical data after Tikhonov regularization of the ill-conditioned norm matrix.
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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.
Lattice EFT calculations find no resonance signature in the tetraneutron ground-state energy, only a weak attraction in the dineutron-dineutron phase shift whose confined energy is close to the experimental low-energy peak.
citing papers explorer
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Ab initio $\alpha$-$\alpha$ scattering with high-fidelity chiral interactions
First ab initio α-α scattering phase shifts with N3LO chiral NLEFT interaction on fine lattice agree with empirical data after Tikhonov regularization of the ill-conditioned norm matrix.
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From binding and saturation to criticality in nuclear matter with lattice effective field theory
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.
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Searching for the Tetraneutron Resonance on the Lattice
Lattice EFT calculations find no resonance signature in the tetraneutron ground-state energy, only a weak attraction in the dineutron-dineutron phase shift whose confined energy is close to the experimental low-energy peak.