Year: 2008
Type: preprint
Abstract: In this contribution, I summarise the studies of the properties of Bose-Einstein condensed systems composed of up to twelve pions or kaons carried out by the NPLQCD collaboration. These investigations have provided precise determination the I=2 pi-pi and I=1 K-K scattering lengths and the first determination of three-hadron interactions from QCD, finding a repulsive three-pion interaction of size consistent with naive dimensional analysis and a three kaon interaction consistent with zero. We have also determined the isospin (strangeness) density dependence of the isospin (strangeness) chemical potential, finding results in surprisingly good agreement with chiral perturbation theory.
Source: arXiv (Cornell University)
Author: Detmold, William
Institution: University of Washington
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funder: U.S. Department of Energy
Award: G1004454035
OpenAlex ID: W2950416102