1303.7263 (Vladimir Pascalutsa et al.)

Pion-mass dispersion relation in the baryon sector    [PDF]

Vladimir Pascalutsa, Marc Vanderhaeghen, Jonathan M. M. Hall, Tim Ledwig

By looking at the complex plane of the pion-mass squared we establish a dispersion relation which the static quantities, such as baryon masses, magnetic moments, polarizabilities, should obey. This dispersion relation yields insight into the differences between the heavy-baryon and relativistic calculations in the baryon sector of chiral perturbation theory.

View original: http://arxiv.org/abs/1303.7263