Cold dilute neutron matter on the lattice. I. Lattice virial coefficients and large scattering lengths
نویسندگان
چکیده
منابع مشابه
Dilute neutron matter on the lattice at next-to-leading order in chiral effective field theory
We discuss lattice simulations of the ground state of dilute neutron matter at nextto-leading order in chiral effective field theory. In a previous paper the coefficients of the next-to-leading-order lattice action were determined by matching nucleon-nucleon scattering data for momenta up to the pion mass. Here the same lattice action is used to simulate the ground state of up to 12 neutrons in...
متن کاملHadron scattering lengths in lattice QCD.
1 Abstract Lattice QCD calculation of s-wave hadron scattering lengths in the channels π-π, π-N, K-N, ¯ K-N and N-N is carried out in the quenched approximation at β = 6/g 2 = 5.7. A variant of the method of wall source is developed for this purpose, which reduces the computer time by a factor L 3 on an L 3 × T lattice compared to the conventional point source method and avoids the Fierz mixing...
متن کاملThermodynamjc Interactions in Dilute Polymer Solutions: the Virial Coefficients
The statistical thermodynamics of dilute polymer solutions is reviewed from the point of view of the continuum theory based on molecular distribution functions. The comparatively rigorous perturbation treatment of the second and third virial coefficients, and various approximate theories derived from it to give closed-form expressions useful for good-solvent systems. are outlined. Indications f...
متن کاملExploratory study of nucleon-nucleon scattering lengths in lattice QCD.
An exploratory study is made of the nucleon-nucleon s-wave scattering lengths in quenched lattice QCD with the Wilson quark action. The π-N and π-π scattering lengths are also calculated for comparison. The calculations are made with heavy quarks corresponding to mπ/mρ ≈ 0.73 − 0.95. The results show that the N -N system has an attractive force in both spin-singlet and triplet channels, with th...
متن کاملInelastic Neutron Scattering and Lattice Dynamics of Novel Compounds
Using a combination of lattice dynamical calculations and inelastic neutron scattering experiments, we have studied the phonon properties of a variety of solids. The materials studied find a wide range of applications, which include the negative thermal expansion materials and other technologically important samples, and also geophysically relevant minerals. Often we have made it possible to pr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review C
سال: 2006
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.73.015201