Comment on "Surprises in threshold antikaon-nucleon physics"
  It has recently been claimed by Oller et al. [PRL 95 (2005) 172502] that the DEAR kaonic hydrogen data can be reconciled with K^- p scattering data in a chiral unitary approach. In this comment we demonstrate that the proposed solution violates fundamental principles of scattering theory. 
B. Borasoy, R. Nissler, and W. Weise