Prompt
PION MASS AND f_pi
Using M_scale, identify m_pi ~ M_scale from null-cone dynamics. Compare: M_scale=120.16 MeV vs. m_pi=134.977 MeV (neutral pion). Deviation ~ -11%. Is there an algebraic correction? Also compute pion decay constant f_pi ~ 92.1 MeV from the algebra. #SuperGrokTOE #PionMass #ChiralSymmetry