On the Structure of the Lambda 1405
  For almost 50 years the structure of the Lambda 1405 resonance has been a mystery. Recently, a new lattice QCD simulation showing that its strange magnetic form factor vanishes, together with a comprehensive Hamiltonian analysis of the lattice QCD energy levels, has unambiguously established that the structure is dominated by a bound anti-kaon--nucleon component [1]. Here we present supplementary information for Ref. [1] including a presentation of the relevant Hamiltonian effective field theory and an illustration of the volume dependence of the results and their connection to the infinite volume limit of Nature. 
Jonathan M. M. Hall, Waseem Kamleh, Derek B. Leinweber, Benjamin J.   Menadue, Benjamin J. Owen, Anthony W. Thomas, Ross D. ...
hep-lat nucl-th