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Helium nuclei, deuteron, and dineutron in2+1flavor lattice QCD

2012/07/18 by Takeshi Yamazaki, Ken-ichi Ishikawa, Ken-Ichi Ishikawa +4 · 132 citations
Chemistry · Physics and Astronomy · #Atomic physics #Binding energy #Bound state #Chemistry #Crystallography #Deuterium #Ground state #High-Energy Particle Collisions Research #Lattice QCD #Nuclear physics #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quark #hep-lat #nucl-ex #nucl-th

paper · pdf · doi:10.1103/physrevd.86.074514

published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 86(7) (American Physical Society) · 22 pages, 11 figures

arxiv created 2012/07/18 · openalex publication_date 2012/10/19 · arxiv updated 2015/06/05 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We calculate the binding energies for multinucleon bound states with the nuclear mass number less than or equal to 4 in 2+1 flavor QCD at the lattice spacing of a=0.09 fm employing a relatively heavy quark mass corresponding to m_\ensuremathπ=0.51 GeV. To distinguish a bound state from attractive scattering states, we investigate the volume dependence of the energy shift between the ground state and the state of free nucleons by changing the spatial extent of the lattice from 2.9 to 5.8 fm. We conclude that 4He, 3He, deuteron and dineutron are bound at m_\ensuremathπ=0.51 GeV. We compare their binding energies with those in our quenched studies and also with several previous investigations.

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