arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0910.4523nucl-thhep-exhep-lathep-ph
收藏

味强子物理学

Flavourful hadronic physics

B. El-Bennich, M. A. Ivanov, C. D. Roberts

摘要:

我们回顾了重介子衰变中出现的形状因子的理论方法,它是非微扰QCD的强子表达式。激发他们的起源QCD因式分解后,我们追溯他们的演变从夸克模型计算的非微扰QCD技术的基础上戴森Schwinger方程的截断重轻振幅的配方为重点。我们比较模型预测的例子B \to π跃迁的形状因子和讨论的新结果的g_{D*Dπ}耦合的强子D* 衰变。

英文摘要:

We review theoretical approaches to form factors that arise in heavy-meson decays and are hadronic expressions of non-perturbative QCD. After motivating their origin in QCD factorisation, we retrace their evolution from quark-model calculations to non-perturbative QCD techniques with an emphasis on formulations of truncated heavy-light amplitudes based upon Dyson-Schwinger equations. We compare model predictions exemplarily for the B\toπtransition form factor and discuss new results for the g_{D*Dπ} coupling in the hadronic D* decay.

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。

↑