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arXiv 1203.2172hep-thgr-qc
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厚膜情形下的Kalb-Ramond激发

Kalb-Ramond excitations in a thick-brane scenario with dilaton

H. R. Christiansen, M. S. Cunha

摘要:

我们计算了弯曲非紧Randall-Sundrum型五维时空中Kalb-Ramond场的全谱和本征态,其中四维膜世界由sine-Gordon孤子表示.这个3膜解与翘曲的引力场和体夸克组态都是完全一致的。在这样的背景下,我们嵌入一个大的反对称张量场,并得到,约化后,一个无限的塔规范化卡鲁扎-克莱因质量分量随着零模式。Kalb-Ramond场的低质量本征态可能与轴子赝标有关。这产生了唯象的影响,空间的参数,特别是对介子耦合常数。分析和数值结果。

英文摘要:

We compute the full spectrum and eigenstates of the Kalb-Ramond field in a warped non-compact Randall-Sundrum -type five-dimensional spacetime in which the ordinary four-dimensional braneworld is represented by a sine-Gordon soliton. This 3-brane solution is fully consistent with both the warped gravitational field and bulk dilaton configurations. In such a background we embed a bulk antisymmetric tensor field and obtain, after reduction, an infinite tower of normalizable Kaluza-Klein massive components along with a zero-mode. The low lying mass eigenstates of the Kalb-Ramond field may be related to the axion pseudoscalar. This yields phenomenological implications on the space of parameters, particularly on the dilaton coupling constant. Both analytical and numerical results are given.

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