Sen快子action的AdS/QCD模型
An AdS/QCD model from Sen's tachyon action
摘要：
我们构造了一个新的，简单的唯象模型沿线AdS/QCD。新的基本成分是膜-反膜有效作用量，包括Sen提出的开弦快子。由于快子动力学，手征对称性破缺发生。我们在10%-15%水平上拟合了大量的低自旋介子质量。唯一的自由参数涉及的拟合对应的整体QCD尺度和夸克质量。以前的模型的几个方面进行了定性改进。
英文摘要：
We construct a new, simple phenomenological model along the lines of AdS/QCD. The essential new ingredient is the brane-antibrane effective action including the open string tachyon proposed by Sen. Chiral symmetry breaking happens because of tachyon dynamics. We fit a large number of low-spin meson masses at the 10%-15% level. The only free parameters involved in the fits correspond to the overall QCD-scale and the quark masses. Several aspects of previous models are qualitatively improved.
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