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Final Report for Nuclear Lattice Simulations with Chiral Effective Field Theory
[摘要] The nuclear lattice program at North Carolina State University addresses the nuclear many-body problem by applying non-perturbative lattice methods directly to hadrons. In this approach nucleons are treated as point particles on a lattice with a lattice spacing between 1 and 4 fm. The low energy interactions of the nucleons are governed by effective field theory and the unknown operator coefficients are determined by fitting to few-body scattering data. By using hadronic degrees of freedom and concentrating on low-energy physics, it is possible to probe larger volumes, lower temperatures, and far greater numbers of nucleons than in lattice QCD. In some cases the sign/complex phase problem can even be completely eliminated.
[发布日期] 2007-02-26 [发布机构] 
[效力级别]  [学科分类] 核物理和高能物理
[关键词] DEGREES OF FREEDOM;HADRONS;MANY-BODY PROBLEM;NUCLEONS;PHYSICS;PROBES;QUANTUM CHROMODYNAMICS;SCATTERING nuclear lattice simulation effective field theory nuclear matter neutron matter unitary limit [时效性] 
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