We have analyzed the D^0 →π^+π^- decay with as corrections in quantum chromodynamic (QCD) factorization and with the soft-gluon corrections in the light cone QCD sum rules. The soft-gluon effects are firstly calculated in the decay channel. The results show that once the factorization contributions, the as corrections, and the soft-gluon effects are all considered, we can satisfactorily explain the experimental data in the decay channel.
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机译：A Comparison between Portuguese and Chinese Adjectives - A Contribution to the Teaching of Portuguese for Chinese Native Speakers =葡汉形容词对比及其在葡语对汉教学上的意义
