Conveners
Nuclear Physics: Nuclear Physics I
- Andre Walker-Loud (Lawrence Berkeley National Laboratory)
Accurate modeling of the many-body properties of the neutrinosphere appears important for a correct description of core-collapse supernovae. The neutrinosphere is within the region of validity of pionless effective field theory.
We leverage techniques from lattice field theory to do a direct calculation of the many-body physics from leading-order pionless EFT. We present a calculation of...
I will describe a method to reduce spatial discretization errors in lattice formulations of pionless effective field theory. All $O(\Delta x)$ errors are cancelled, and generalizing to higher orders is simple. The method relies on set of renormalization conditions fixed by finite-volume energy levels, and may be useful for supernova phenomenology and cold-atomic physics, where spatial...
In published work, we reported a study of the H dibaryon in the continuum limit of SU(3)-flavor-symmetric lattice QCD with a pion/kaon/eta mass of roughly 420 MeV, employing finite-volume quantization conditions and distillation. The data were affected by large discretization effects, leading to a small binding energy in the continuum. In this talk, I will present results for nucleon-nucleon...
In this talk, I will illustrate an alternative approach to Luscher formulas for extracting the nuclear force from finite volume energy levels using the plane wave basis and eigenvector continuation. We adopt the formalism of semilocal momentum-space regularized chiral nuclear force up to fifth order to investigate the two-nucleon energy levels in the finite volumes using plane wave basis with...
