2 papers
nucl-th2001
Role of Chiral Symmetry in the Nuclear Many-Body Problem
N. Kaiser, W. Weise
The role of chiral (pion) dynamics in nuclear matter is reviewed. Contributions to the energy per particle from one- and two-pion exchange are calculated systematically, and it is…
hep-ph2001
Further comment on pion electroproduction and the axial form factor
V. Bernard, N. Kaiser, Ulf-G. Meißner
We show that a recent claim (H.Haberzettl, Phys. Rev. Lett. 85 (2000) 3576) that one cannot extract the nucleon weak axial form factor G_A (t) from charged pion threshold electropr…