N. Bilic et al., RELATING THE PION DECAY CONSTANT TO THE CHIRAL RESTORATION TEMPERATURE, International journal of modern physics A, 10(8), 1995, pp. 1169-1179
We review the relationship between the pion decay constant f(pi), the
chiral symmetry restoration temperature T-c and the phenomenology of l
ow energy chiral symmetry breaking in view of the recent confirmation
of the existence of a sigma meson with a mass of 600-700 MeV.