arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0902.3959hep-ph
收藏

受OPE启发的全息模型的Regge谱

Regge spectrum from holographic models inspired by OPE

S. S. Afonin

摘要:

本文讨论了在硬壁AdS/QCD模型中获得介子质量谱类Regge行为的问题。我们表明,这个问题可以解决一个简单的纳入到这样的模型的局部真空冷凝的影响。轨迹的斜率原来是由2维的局部凝聚决定的,这在标准的算子乘积展开中是不存在的。然而,这个陷阱可以通过物理上合理地修改对应于通常胶子凝聚的全息场的边界条件来避免,后者然后确定斜率。

英文摘要:

The problem of obtaining the Regge-like behaviour for meson mass spectrum in the hard-wall AdS/QCD models is addressed. We show that the problem can be solved by a simple incorporation of the effects of local vacuum condensates into such models. The slope of trajectories turns out to be determined by the local condensate of dimension~2 that is absent in the standard Operator Product Expansion. This pitfall, however, can be escaped by means of physically plausible modification of boundary conditions for the holographic fields corresponding to the usual gluon condensate, the latter then determines the slope.

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。

↑