The applicability of perturbative QCD to the pion form factor and the pionic wavefunction |
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| Authors: | Tao Huang Qi-Xing Shen |
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| Institution: | 1. CCAST (World Laboratory), P. O. Box 8730, 100080, Beijing, People's Republic of China
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| Abstract: | We reanalyse the pionic form factor by using perturbative QCD theory and contributions from endpoint regions. We find that the perturbative QCD can be applied to the pionic form factor asQ 2>4 GeV2 and they become unreliable asQ 2≦4 GeV2. Therefore the applicability of perturbative QCD to the form factor is questionable only asQ 2≦4 GeV2. |
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