New limit of pion form factor at very large $Q^2$


Abstract in English

A new limit of pion form factor at very large $Q^2$ is obtained by using a pion wave function determined from an effective chiral field theory of mesons. It shows that when $Q^2>>(1.8GeV)^2$ the pion form factor reaches the asymptotic limit ${alpha_s(Q^2)over Q^2}$.

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