Non-factorizable contributions in D0→π+π- decay

• 来源期刊: 中国物理（英文版）
• 关键词: D meson decay soft-gluon effects branching ratio
• 年，卷（期）: 2004,（4）
• 页码范围: 469-472
• 页数: 4页
• 语种: 英文

摘要

We have analyzed the D0 →π+π- decay with αs 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 αs corrections, and the soft-gluon effects are all considered, we can satisfactorily explain the experimental data in the decay channel.