论文标题
估计对重型介子的形式的非价贡献
An estimation of non-valence contributions to form factors of heavy-light mesons
论文作者
论文摘要
我们研究了非价夸克对贡献在弱光膜的弱过渡形式因素中的影响。首先，在抑制此类贡献的参考框架中，对空格类动量转移进行了计算。分析性延续到及时区域，并与直接衰减计算进行比较，并以纯自由度为单位，可估计夸克对贡献可能扮演的角色。我们使用相对论量子力学的点形式，这在处理重型系统时特别有用。
We study the influence of non-valence quark-pair contributions in weak transition form factors of heavy-light mesons. Form factors are first calculated for spacelike momentum transfers in a reference frame where such contributions are suppressed. Analytic continuation to the timelike region and a comparison with the direct decay calculation, done with pure valence degrees of freedom, provides an estimate of the role that quark-pair contributions may play. We use the point form of relativistic quantum mechanics, which is particularly useful when treating heavy-light systems.
