论文标题
来自Higgs Boson的宇宙撞机信号
Cosmological Collider Signals of Non-Gaussianity from Higgs boson in GUT
论文作者
论文摘要
宇宙撞机物理学使我们有机会通过观察宇宙微波背景上印刷的通货膨胀期间产生的时空波动来探测高能物理学。换句话说，这是一种通过宇宙的精确观察到陆地加速器无法达到的能量量表的物理学的方法。在本文中，我们关注的是肠道量表接近通货膨胀量表的情况，并通过在树水平上交换肠道中的希格斯玻色子来计算流口的三个点功能。发现结果与当前观察到的非高斯性限制一致，而无需大量的参数调整，并且可以根据我们的模型参数来检测21cm频谱，未来LSS和未来的CMB的Higgs Boson的特征。
Cosmological Collider Physics gives us the opportunity to probe high-energy physics from observing the spacetime fluctuations generated during inflation imprinted on the cosmic microwave background. In other words, it is a method to investigate physics on energy scales that cannot be reached by terrestrial accelerators by means of precise observations of the universe. In this paper, we focus on the case where the GUT scale is close to the energy scale of inflation, and calculate three point function of inflaton by exchanging the Higgs boson in GUT at tree level. The results are found to be consistent with the current observed restrictions on non-Gaussianity without a drastic fine tuning of parameters, and it might be possible to detect the signature of the Higgs boson in GUT by 21cm spectrum, future LSS and future CMB depending on our model parameters.
