Abstract
The chiral low-energy constants and are constrained by means of accurate ab initio calculations of the binding energies and, for the first time, of the triton decay. We demonstrate that these low-energy observables allow a robust determination of the two undetermined constants, a result of the surprising fact that the determination of depends weakly on the short-range correlations in the wave functions. These two- plus three-nucleon interactions, originating in chiral effective field theory and constrained by properties of the system and the present determination of and , are successful in predicting properties of the and 4 systems.
- Received 23 December 2008
DOI:https://doi.org/10.1103/PhysRevLett.103.102502
©2009 American Physical Society