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W-T Identities,Normalization of the BS Wave Function and Properties of the Pion |
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| Authors: | Yuan-Ben DAI Chao-Shang HUANG Yi-Bing DING Chui-Lin WANG Yun-Lun ZHU |
| Affiliation: | 1. Institute of Theoretical Physics, Academia Sinica, P.O. Box 2735, Beijing 100080, China;2. CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, China;3. Physics Department, Graduate School, Academia Sinica, Beijing 100039, China;4. Department of Physics, Peking University, Beijing 100080, China |
| Abstract: | We discuss some problems concerned with the normalization of the BS wave function in connection with Ward-Thkahashi identities in the Lorentz covariant Bethe-Salpeter formalism proposed in the previous work. Physical quantities of the pion as a Goldstone boson, including the π0 → 2γ amplitude are calculated in the QCD motivated models and results are in agreement with the experimental data. |
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