伸缩子手征微扰理论及其应用
Dilaton chiral perturbation theory and applications
摘要：
我们回顾了手征微扰理论（dChPT），近共形，限制理论的轻部门的有效的低能量理论。dChPT在费米子质量和到共形窗口的距离方面都提供了系统的扩展。它解释了π介子和光标量，分别是手征和尺度对称的近似南武-戈德斯通玻色子。dChPT的一个独特之处是存在一个大质量的制度，其中理论表现出近似超尺度，而膨胀仍然是系统的。我们讨论应用程序格数据，提出的成功以及未来的工作方向。
英文摘要：
We review dilaton chiral perturbation theory (dChPT), the effective low-energy theory for the light sector of near-conformal, confining theories. dChPT provides a systematic expansion in both the fermion mass and the distance to the conformal window. It accounts for the pions and the light scalar, the approximate Nambu-Goldstone bosons for chiral and scale symmetry, respectively. A unique feature of dChPT is the existence of a large-mass regime in which the theory exhibits approximate hyperscaling, while the expansion nevertheless remains systematic. We discuss applications to lattice data, presenting successes as well as directions for future work.
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