论文标题
重度kaluza-klein共振产生的重力烙印
Gravitational Imprints from Heavy Kaluza-Klein Resonances
论文作者
论文摘要
我们系统地研究了五维翘曲模型中辐射场的全息相变，该模型包括具有类似功率行为的标量电势。我们认为在TEV规模或以后，Kaluza-Klein（KK）与Masses $ M _ {\ rm kk} $共振。通过使用超电势形式主义，考虑了重力度量指标上的辐射场的反射。限制/解次限制一阶相变导致引力波随机背景，该背景主要取决于划分$ m _ {\ rm kk} $和颜色的数量，$ n $在双重理论中。它的功率谱以频率达到频率，该频率取决于电动部门所需的调谐量。事实证明，现在和即将出现的引力波观测值可以探测KK共振非常重的情况。当前的Aligo数据已经排除了向量玻色子KK与质量在间隔$ m _ {\ rm kk} \ sim（1-10）\ times 10^5 $ tev中的质量共鸣。未来的引力实验将对与群众的共振敏感$ m _ {\ rm kk} \ Lessim 10^5 $ tev（lisa），$ 10^8 $ tev（aligo Design）和$ 10^9 $ tev（ET）。最后，我们还发现，在频谱中结合的大爆炸核合成变成了成核温度的下限，因为$ t_n \ gtrsim 10^{ - 4} \ sqrt {n} \，m _ {\ rm kk} $。
We systematically study the holographic phase transition of the radion field in a five-dimensional warped model which includes a scalar potential with a power-like behavior. We consider Kaluza-Klein (KK) resonances with masses $m_{\rm KK}$ at the TeV scale or beyond. The backreaction of the radion field on the gravitational metric is taken into account by using the superpotential formalism. The confinement/deconfinement first order phase transition leads to a gravitational wave stochastic background which mainly depends on the scale $m_{\rm KK}$ and the number of colors, $N$, in the dual theory. Its power spectrum peaks at a frequency that depends on the amount of tuning required in the electroweak sector. It turns out that the present and forthcoming gravitational wave observatories can probe scenarios where the KK resonances are very heavy. Current aLIGO data already rule out vector boson KK resonances with masses in the interval $m_{\rm KK}\sim(1 - 10) \times 10^5$ TeV. Future gravitational experiments will be sensitive to resonances with masses $m_{\rm KK}\lesssim 10^5$ TeV (LISA), $10^8$ TeV (aLIGO Design) and $10^9$ TeV (ET). Finally, we also find that the Big Bang Nucleosynthesis bound in the frequency spectrum turns into a lower bound for the nucleation temperature as $T_n \gtrsim 10^{-4}\sqrt{N} \,m_{\rm KK}$.
