Nuclear Lattice Simulations with Chiral Effective Field Theory
نویسنده
چکیده
We present recent results on lattice simulations using chiral effective field theory. In particular we discuss lattice simulations for dilute neutron matter at next-to-leading order and three-body forces in light nuclei at next-to-next-to-leading order.
منابع مشابه
Nuclear lattice simulations
We summarize recent progress on nuclear lattice simulations using chiral effective field theory. We present lattice results for dilute neutron matter at next-to-leading order and three-body forces in light nuclei at next-to-next-to-leading order.
متن کامل47 v 1 1 7 O ct 2 00 5 The triton and three - nucleon force in nuclear lattice simulations
We study the triton and three-nucleon force at lowest chiral order in pionless effective field theory both in the Hamiltonian and Euclidean nuclear lattice formalism. In the case of the Euclidean lattice formalism, we derive the exact few-body worldline amplitudes corresponding to the standard many-body lattice action. This will be useful for setting low-energy coefficients in future nuclear la...
متن کاملGround state energy of dilute neutron matter at next-to-leading order in lattice chiral effective field theory
We present lattice calculations for the ground state energy of dilute neutron matter at next-to-leading order in chiral effective field theory. This study follows a series of recent papers on low-energy nuclear physics using chiral effective field theory on the lattice. In this work we introduce an improved spinand isospin-projected leading-order action which allows for a perturbative treatment...
متن کاملNuclear forces in the chiral limit
We investigate the behaviour of the nuclear forces as a function of the light quark masses (or, equivalently, pion mass) in the framework of chiral effective field theory at next-to-leading order. The nucleon–nucleon force is described in terms of one and two–pion exchange and local short distance operators, which depend explicitly and implicitly on the quark masses. The pion propagator becomes...
متن کاملNuclear Lattice Simulations with EFT
Weinberg extended effective field theory methods to the nucleon-nucleon interaction [1], and over the last several years effective field theory methods have been applied successfully to the two and three-nucleon system. Our aim and the goal of the Nuclear Lattice Collaboration as a whole [2][3] is to extend effective field theory methods to the nuclear many-body problem. For this purpose we inv...
متن کامل