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Effective Field Theory for Lattice Nuclei

Abstract : We show how nuclear effective field theory (EFT) and ab initio nuclear-structure methods can turn input from lattice quantum chromodynamics (LQCD) into predictions for the properties of nuclei. We argue that pionless EFT is the appropriate theory to describe the light nuclei obtained in LQCD simulations carried out at pion masses heavier than the physical pion mass. We solve the EFT using the effective-interaction hyperspherical harmonics and auxiliary-field diffusion Monte Carlo methods. Fitting the three leading-order EFT parameters to the deuteron, dineutron, and triton LQCD energies at mπ≈800  MeV, we reproduce the corresponding alpha-particle binding and predict the binding energies of mass-5 and mass-6 ground states.
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Contributor : Sophie Heurteau Connect in order to contact the contributor
Submitted on : Thursday, April 9, 2015 - 10:42:52 AM
Last modification on : Friday, April 30, 2021 - 10:22:10 AM

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N. Barnea, L. Contessi, D. Gazit, F. Pederiva, U. van Kolck. Effective Field Theory for Lattice Nuclei. Physical Review Letters, American Physical Society, 2015, 114 (5), pp.052501. ⟨10.1103/PhysRevLett.114.052501⟩. ⟨in2p3-01140645⟩



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