Low-energy interactions of Nambu-Goldstone bosons with $D$ mesons in covariant chiral perturbation theory
Low-energy interactions of Nambu-Goldstone bosons with $D$ mesons in covariant chiral perturbation theory
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DOI：
10.1103/physrevd.82.054022
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发表时间：
2010-08
影响因子：
5
通讯作者：
L. Geng;N. Kaiser;J. Martin-Camalich;W. Weise
中科院分区：
文献类型：
--
作者：
L. Geng;N. Kaiser;J. Martin-Camalich;W. Weise
我们用手性微扰理论的协变公式计算了南部-戈德斯通玻色子与 D 介子相互作用的散射长度，该公式满足重夸克自旋对称性和环振幅的解析性质。我们将我们的结果与之前使用重介子手性微扰理论进行的研究进行比较，结果表明在大多数情况下反冲校正是相当大的。
We calculate the scattering lengths of Nambu-Goldstone bosons interacting with D mesons in a covariant formulation of chiral perturbation theory, which satisfies heavy-quark spin symmetry and analytical properties of loop amplitudes. We compare our results with previous studies performed using heavy-meson chiral perturbation theory and show that recoil corrections are sizable in most cases.