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arXiv 1911.00528gr-qchep-th
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宇宙学多重弯曲膜世界中标量场和规范场的质量谱

Mass spectrum of scalar and gauge fields in the cosmological multiply warped brane-world

A. S. Ribeiro, G. Alencar, R. R. Landim, F. N. Lima

摘要:

本文在Freedman-Robertson-Walker(FRW)度规下计算了六维时空多重弯曲膜世界中标量场和规范场的质量模。由于在两个维度上都存在翘曲,场的大质量卡鲁扎-克莱因(KK)模式被分裂成两个质量塔。这在标准的Randall-Sundrum(RS)模型中不会发生。研究了质量谱与哈勃常数的关系。更轻的质量模式的领域被发现,从而可以推断,标量和玻色子物质可以直接影响宇宙膨胀。

英文摘要:

In this paper, we compute the massive modes of scalar and gauge fields in a multiply warped brane-world scenario in six-dimensional spacetime with a Freedman-Robertson-Walker (FRW) metric. The massive Kaluza-Klein (KK) modes of the fields are split in two mass towers due to the presence of the warped in both dimensions. This does not occurs in the standard Randall-Sundrum (RS) model. We investigate the dependence of the mass spectrum on Hubble constant. Lighter massive modes of the fields are found, whereby it is possible to infer that scalar and bosonic matter can directly influence in universe expansion.

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