Redundancy of the off-shell parameters in chiral effective field theory with explicit spin-3/2 degrees of freedom
arXiv:0905.2744 · doi:10.1016/j.physletb.2009.12.023
Abstract
In this note we prove to all orders in the small scale expansion that all off-shell parameters which appear in the chiral effective Lagrangian with explicit Delta(1232) isobar degrees of freedom can be absorbed into redefinitions of certain low-energy constants and are therefore redundant.
7 pages