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arXiv 0709.2295hep-ph
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强耦合常数$g_{D^* D π}$和末态相互作用

The strong coupling constant $g_{D^* D π}$ and final-state interactions

Zhi-Gang Wang

摘要:

本文研究了末态相互作用对强耦合常数$g_{D^* D π}$的贡献。我们假设强衰变$D^{*+} \to D^0 π^+$中的动量转移很大,以验证光锥QCD求和规则中的算子乘积展开。在大的动量转移中,末态相互作用起着重要的作用,我们应该考虑它们。

英文摘要:

In this article, we study the contribution from the final-state interactions to the strong coupling constant $g_{D^* D π}$. We take an assumption that the momentum transfers in the strong decay $D^{*+} \to D^0 π^+$ be large to validate the operator product expansion in the light-cone QCD sum rules. At large momentum transfers, the final-state interactions play an important role, and we should take them into account.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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