Elimination of the Landau Ghost from Chiral Solitons
J. HartmannF. BeckW. Bentz
所有作者
J. HartmannF. BeckW. Bentz
文献摘要
We show a practical way based on the K"{a}ll'{e}n-Lehmann representation
for the two-point functions to eliminate the instability of the vacuum against
formation of small sized meson configurations in the chiral σ model.