Baryon properties in meson mediums from lattice QCD
Author(s)Nicholson, Amy; Detmold, William
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We present results for the ground-state mass shifts of octet baryons due to the presence of a medium of pions or kaons from a lattice QCD calculation performed at a single value of the quark mass, corresponding to a pion mass of m[subscript π] ∼ 390 MeV, and a spatial volume V ∼ (4fm)[superscript 3]. We use a canonical approach in which correlators are formed using a single baryon propagator and a fixed number of meson propagators, up to n = 9. From the ground-state energies we calculate two and three-body interaction parameters. We also extract combinations of low-energy constants by comparing our results to tree level chiral perturbation theory at non-zero isospin/kaon chemical potential.
DepartmentMassachusetts Institute of Technology. Department of Physics
Proceedings of the 31st International Symposium on Lattice Field Theory LATTICE 2013
Nicholson, Amy and William Detmold. "Baryon properties in meson mediums from lattice QCD." 31st International Symposium on Lattice Field Theory LATTICE 2013, 29 July-3 August, 2013, Mainz, Germany, Proceedings of Science, 2013.
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